Phase 0 (miroir-qon): Rust 1.88 upgrade + test infrastructure

- Bump Rust toolchain from 1.87 to 1.88
- Add testcontainers and arbitrary dependencies for property testing
- Update router with rendezvous hashing improvements
- Fix credential handling in miroir-ctl
- Update reshard and migration modules
- Add Helm chart scaffolding
- Add Redis memory accounting documentation

All Phase 0 DoD checks pass:
- cargo build --all succeeds
- cargo test --all succeeds (103 tests)
- cargo clippy --all-targets --all-features -- -D warnings passes
- cargo fmt --all -- --check passes
- Config round-trip YAML test passes

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
jedarden 2026-05-09 02:05:02 -04:00
parent fe18dc0079
commit 6c32dd8efc
39 changed files with 7560 additions and 1593 deletions

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{
"bead_id": "miroir-cdo",
"agent": "claude-code-glm-4.7",
"provider": "zai",
"model": "glm-4.7",
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"outcome": "failure",
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"captured_at": "2026-05-09T05:26:01.130120257Z",
"trace_format": "claude_json",
"pruned": false,
"template_version": null
}

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@ -0,0 +1,2 @@
SessionEnd hook [/home/coding/.ccdash/hooks/session-end.sh] failed: /bin/sh: line 1: /home/coding/.ccdash/hooks/session-end.sh: cannot execute: required file not found

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@ -5,11 +5,11 @@
"model": "glm-4.7",
"exit_code": 1,
"outcome": "failure",
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{
"bead_id": "miroir-r3j",
"agent": "claude-code-glm-4.7",
"provider": "zai",
"model": "glm-4.7",
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"outcome": "failure",
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"trace_format": "claude_json",
"pruned": false,
"template_version": null
}

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SessionEnd hook [/home/coding/.ccdash/hooks/session-end.sh] failed: /bin/sh: line 1: /home/coding/.ccdash/hooks/session-end.sh: cannot execute: required file not found

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@ -1 +1 @@
f75664f663c87e9806844e4020b853d2585322fd
0e194350e42b9b1a4579b4868ab1a41ed2ca794c

682
Cargo.lock generated

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@ -7,7 +7,7 @@ version = "0.1.0"
edition = "2021"
license = "MIT"
repository = "https://github.com/jedarden/miroir"
rust-version = "1.87"
rust-version = "1.88"
[workspace.dependencies]
serde = { version = "1.0", features = ["derive"] }

20
charts/miroir/Chart.yaml Normal file
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@ -0,0 +1,20 @@
apiVersion: v2
name: miroir
description: Multi-node Index Replication Orchestrator for Meilisearch
type: application
version: 0.1.0
appVersion: "0.1.0"
keywords:
- meilisearch
- search
- replication
- sharding
home: https://github.com/jedarden/miroir
sources:
- https://github.com/jedarden/miroir
maintainers:
- name: jedarden
email: dev@example.com
annotations:
artifacthub.io/category: database
artifacthub.io/license: MIT

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@ -0,0 +1,42 @@
Miroir has been deployed successfully!
{{- if .Values.miroir.ingress.enabled }}
Your Miroir instance is accessible at:
{{- range .Values.miroir.ingress.hosts }}
http{{ if $.Values.miroir.ingress.tls }}s{{ end }}://{{ .host }}
{{- end }}
{{- else if contains "NodePort" .Values.miroir.service.type }}
Get the NodePort by running:
export NODE_PORT=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "miroir.fullname" . }} -o jsonpath='{.spec.ports[0].nodePort}')
echo "URL: http://$NODE_PORT"
{{- else if contains "LoadBalancer" .Values.miroir.service.type }}
Get the LoadBalancer IP by running:
export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ include "miroir.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
echo "URL: http://$SERVICE_IP:{{ .Values.miroir.service.port }}"
{{- else if contains "ClusterIP" .Values.miroir.service.type }}
Get the application URL by running these commands in the same shell:
export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "miroir.name" . }},app.kubernetes.io/instance={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
echo "Visit http://127.0.0.1:7700 to use your application"
kubectl port-forward --namespace {{ .Release.Namespace }} $POD_NAME 7700:7700
{{- end }}
{{- if eq .Values.miroir.taskStore.backend "redis" }}
Redis is deployed and accessible at:
{{ include "miroir.fullname" . }}-redis:6379
{{- end }}
To verify the deployment, run:
kubectl get pods --namespace {{ .Release.Namespace }} -l "app.kubernetes.io/name={{ include "miroir.name" . }},app.kubernetes.io/instance={{ .Release.Name }}"
For more information, see the documentation at:
https://github.com/jedarden/miroir

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@ -0,0 +1,67 @@
{{/*
Expand the name of the chart.
*/}}
{{- define "miroir.name" -}}
{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
{{- end }}
{{/*
Create a default fully qualified app name.
*/}}
{{- define "miroir.fullname" -}}
{{- if .Values.fullnameOverride }}
{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
{{- else }}
{{- $name := default .Chart.Name .Values.nameOverride }}
{{- if contains $name .Release.Name }}
{{- .Release.Name | trunc 63 | trimSuffix "-" }}
{{- else }}
{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
{{- end }}
{{- end }}
{{- end }}
{{/*
Create chart name and version as used by the chart label.
*/}}
{{- define "miroir.chart" -}}
{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
{{- end }}
{{/*
Common labels
*/}}
{{- define "miroir.labels" -}}
helm.sh/chart: {{ include "miroir.chart" . }}
{{ include "miroir.selectorLabels" . }}
{{- if .Chart.AppVersion }}
app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
{{- end }}
app.kubernetes.io/managed-by: {{ .Release.Service }}
{{- end }}
{{/*
Selector labels
*/}}
{{- define "miroir.selectorLabels" -}}
app.kubernetes.io/name: {{ include "miroir.name" . }}
app.kubernetes.io/instance: {{ .Release.Name }}
{{- end }}
{{/*
Redis enabled
*/}}
{{- define "miroir.redisEnabled" -}}
{{- eq .Values.miroir.taskStore.backend "redis" }}
{{- end }}
{{/*
Service Account Name
*/}}
{{- define "miroir.serviceAccountName" -}}
{{- if .Values.serviceAccount.create }}
{{- default (include "miroir.fullname" .) .Values.serviceAccount.name }}
{{- else }}
{{- default "default" .Values.serviceAccount.name }}
{{- end }}
{{- end }}

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@ -0,0 +1,23 @@
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ include "miroir.fullname" . }}-config
labels:
{{- include "miroir.labels" . | nindent 4 }}
data:
config.yaml: |
miroir:
shards: {{ .Values.miroir.shards }}
replication_factor: {{ .Values.miroir.replicationFactor }}
replica_groups: {{ .Values.miroir.replicaGroups }}
scatter:
unavailable_shard_policy: {{ .Values.miroir.scatter.unavailableShardPolicy }}
task_store:
backend: {{ .Values.miroir.taskStore.backend }}
{{- if eq .Values.miroir.taskStore.backend "sqlite" }}
path: {{ .Values.miroir.taskStore.path }}
{{- else if eq .Values.miroir.taskStore.backend "redis" }}
url: {{ .Values.miroir.taskStore.url }}
{{- end }}
admin:
enabled: {{ .Values.miroir.admin.enabled }}

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@ -0,0 +1,73 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "miroir.fullname" . }}
labels:
{{- include "miroir.labels" . | nindent 4 }}
spec:
{{- if not .Values.miroir.hpa.enabled }}
replicas: {{ .Values.miroir.replicas }}
{{- end }}
selector:
matchLabels:
{{- include "miroir.selectorLabels" . | nindent 6 }}
template:
metadata:
annotations:
checksum/config: {{ include (print $.Template.BasePath "/configmap.yaml") . | sha256sum }}
{{- with .Values.miroir.podAnnotations }}
{{- toYaml . | nindent 8 }}
{{- end }}
labels:
{{- include "miroir.selectorLabels" . | nindent 8 }}
spec:
{{- with .Values.miroir.podSecurityContext }}
securityContext:
{{- toYaml . | nindent 8 }}
{{- end }}
serviceAccountName: {{ include "miroir.serviceAccountName" . }}
containers:
- name: miroir
{{- with .Values.miroir.image }}
image: "{{ .repository }}:{{ .tag | default $.Chart.AppVersion }}"
imagePullPolicy: {{ .pullPolicy }}
{{- end }}
ports:
- name: http
containerPort: 7700
protocol: TCP
env:
- name: MIROIR_SHARDS
value: {{ .Values.miroir.shards | quote }}
- name: MIROIR_REPLICATION_FACTOR
value: {{ .Values.miroir.replicationFactor | quote }}
- name: MIROIR_REPLICA_GROUPS
value: {{ .Values.miroir.replicaGroups | quote }}
- name: MIROIR_TASK_STORE_BACKEND
value: {{ .Values.miroir.taskStore.backend }}
{{- if eq .Values.miroir.taskStore.backend "sqlite" }}
- name: MIROIR_TASK_STORE_PATH
value: {{ .Values.miroir.taskStore.path | quote }}
{{- else if eq .Values.miroir.taskStore.backend "redis" }}
- name: MIROIR_TASK_STORE_URL
value: {{ .Values.miroir.taskStore.url | quote }}
{{- end }}
{{- if .Values.miroir.existingSecret }}
envFrom:
- secretRef:
name: {{ .Values.miroir.existingSecret }}
{{- end }}
{{- with .Values.miroir.resources }}
resources:
{{- toYaml . | nindent 10 }}
{{- end }}
{{- with .Values.miroir.securityContext }}
securityContext:
{{- toYaml . | nindent 10 }}
{{- end }}
volumeMounts:
- name: data
mountPath: /data
volumes:
- name: data
emptyDir: {}

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@ -0,0 +1,32 @@
{{- if .Values.miroir.hpa.enabled }}
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
name: {{ include "miroir.fullname" . }}
labels:
{{- include "miroir.labels" . | nindent 4 }}
spec:
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: {{ include "miroir.fullname" . }}
minReplicas: {{ .Values.miroir.hpa.minReplicas }}
maxReplicas: {{ .Values.miroir.hpa.maxReplicas }}
metrics:
{{- if .Values.miroir.hpa.targetCPUUtilizationPercentage }}
- type: Resource
resource:
name: cpu
target:
type: Utilization
averageUtilization: {{ .Values.miroir.hpa.targetCPUUtilizationPercentage }}
{{- end }}
{{- if .Values.miroir.hpa.targetMemoryUtilizationPercentage }}
- type: Resource
resource:
name: memory
target:
type: Utilization
averageUtilization: {{ .Values.miroir.hpa.targetMemoryUtilizationPercentage }}
{{- end }}
{{- end }}

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@ -0,0 +1,84 @@
{{- if and (include "miroir.redisEnabled" .) .Values.redis.enabled }}
apiVersion: apps/v1
kind: Deployment
metadata:
name: {{ include "miroir.fullname" . }}-redis
labels:
{{- include "miroir.labels" . | nindent 4 }}
app: redis
spec:
replicas: 1
selector:
matchLabels:
{{- include "miroir.selectorLabels" . | nindent 6 }}
app: redis
template:
metadata:
labels:
{{- include "miroir.selectorLabels" . | nindent 8 }}
app: redis
spec:
containers:
- name: redis
{{- with .Values.redis.image }}
image: "{{ .repository }}:{{ .tag }}"
imagePullPolicy: {{ .pullPolicy }}
{{- end }}
ports:
- name: redis
containerPort: 6379
protocol: TCP
{{- with .Values.redis.resources }}
resources:
{{- toYaml . | nindent 10 }}
{{- end }}
{{- if .Values.redis.persistence.enabled }}
volumeMounts:
- name: data
mountPath: /data
{{- end }}
{{- if .Values.redis.persistence.enabled }}
volumes:
- name: data
persistentVolumeClaim:
claimName: {{ include "miroir.fullname" . }}-redis
{{- end }}
---
{{- if and (include "miroir.redisEnabled" .) .Values.redis.enabled }}
apiVersion: v1
kind: Service
metadata:
name: {{ include "miroir.fullname" . }}-redis
labels:
{{- include "miroir.labels" . | nindent 4 }}
app: redis
spec:
type: ClusterIP
ports:
- port: 6379
targetPort: redis
protocol: TCP
name: redis
selector:
{{- include "miroir.selectorLabels" . | nindent 4 }}
app: redis
{{- end }}
---
{{- if and (include "miroir.redisEnabled" .) .Values.redis.enabled .Values.redis.persistence.enabled }}
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: {{ include "miroir.fullname" . }}-redis
labels:
{{- include "miroir.labels" . | nindent 4 }}
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: {{ .Values.redis.persistence.size }}
{{- if .Values.redis.persistence.storageClass }}
storageClassName: {{ .Values.redis.persistence.storageClass }}
{{- end }}
{{- end }}
{{- end }}

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@ -0,0 +1,19 @@
apiVersion: v1
kind: Service
metadata:
name: {{ include "miroir.fullname" . }}
labels:
{{- include "miroir.labels" . | nindent 4 }}
{{- with .Values.miroir.service.annotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
spec:
type: {{ .Values.miroir.service.type }}
ports:
- port: {{ .Values.miroir.service.port }}
targetPort: http
protocol: TCP
name: http
selector:
{{- include "miroir.selectorLabels" . | nindent 4 }}

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@ -0,0 +1,12 @@
{{- if .Values.serviceAccount.create -}}
apiVersion: v1
kind: ServiceAccount
metadata:
name: {{ include "miroir.fullname" . }}
labels:
{{- include "miroir.labels" . | nindent 4 }}
{{- with .Values.serviceAccount.annotations }}
annotations:
{{- toYaml . | nindent 4 }}
{{- end }}
{{- end }}

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@ -0,0 +1,221 @@
{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "Miroir Helm Chart Values",
"type": "object",
"properties": {
"miroir": {
"type": "object",
"properties": {
"image": {
"type": "object",
"properties": {
"repository": {"type": "string"},
"tag": {"type": "string"},
"pullPolicy": {"type": "string", "enum": ["Always", "IfNotPresent", "Never"]}
}
},
"replicas": {
"type": "integer",
"minimum": 1
},
"shards": {
"type": "integer",
"minimum": 1
},
"replicationFactor": {
"type": "integer",
"minimum": 1
},
"replicaGroups": {
"type": "integer",
"minimum": 1
},
"taskStore": {
"type": "object",
"properties": {
"backend": {
"type": "string",
"enum": ["sqlite", "redis"]
},
"path": {"type": "string"},
"url": {"type": "string"}
},
"required": ["backend"]
},
"admin": {
"type": "object",
"properties": {
"enabled": {"type": "boolean"}
}
},
"scatter": {
"type": "object",
"properties": {
"unavailableShardPolicy": {
"type": "string",
"enum": ["partial", "error"]
}
}
},
"hpa": {
"type": "object",
"properties": {
"enabled": {"type": "boolean"},
"minReplicas": {"type": "integer", "minimum": 1},
"maxReplicas": {"type": "integer", "minimum": 1},
"targetCPUUtilizationPercentage": {"type": "integer", "minimum": 1, "maximum": 100},
"targetMemoryUtilizationPercentage": {"type": "integer", "minimum": 1, "maximum": 100}
}
},
"ingress": {
"type": "object",
"properties": {
"enabled": {"type": "boolean"},
"className": {"type": "string"},
"annotations": {"type": "object"},
"hosts": {
"type": "array",
"items": {
"type": "object",
"properties": {
"host": {"type": "string"},
"paths": {
"type": "array",
"items": {
"type": "object",
"properties": {
"path": {"type": "string"},
"pathType": {"type": "string"}
},
"required": ["path", "pathType"]
}
}
},
"required": ["host"]
}
},
"tls": {
"type": "array",
"items": {
"type": "object",
"properties": {
"secretName": {"type": "string"},
"hosts": {"type": "array", "items": {"type": "string"}}
}
}
}
}
},
"resources": {
"type": "object",
"properties": {
"limits": {
"type": "object",
"properties": {
"cpu": {"type": "string"},
"memory": {"type": "string"}
}
},
"requests": {
"type": "object",
"properties": {
"cpu": {"type": "string"},
"memory": {"type": "string"}
}
}
}
},
"podAnnotations": {"type": "object"},
"podSecurityContext": {"type": "object"},
"securityContext": {"type": "object"},
"service": {
"type": "object",
"properties": {
"type": {"type": "string"},
"port": {"type": "integer"},
"annotations": {"type": "object"}
}
},
"existingSecret": {"type": "string"}
},
"required": ["replicas", "shards", "replicationFactor", "replicaGroups", "taskStore"],
"allOf": [
{
"if": {
"properties": {
"replicas": {"minimum": 2}
},
"required": ["replicas"]
},
"then": {
"properties": {
"taskStore": {
"properties": {
"backend": {"const": "redis"}
},
"required": ["backend"]
}
},
"errorMessage": "taskStore.backend must be 'redis' when replicas > 1 (SQLite is single-writer and cannot be shared across pods)"
}
},
{
"if": {
"properties": {
"hpa": {
"properties": {
"enabled": true
},
"required": ["enabled"]
}
},
"required": ["hpa"]
},
"then": {
"properties": {
"replicas": {"minimum": 2},
"taskStore": {
"properties": {
"backend": {"const": "redis"}
},
"required": ["backend"]
}
},
"errorMessage": "HPA requires replicas >= 2 and taskStore.backend='redis'"
}
}
]
},
"redis": {
"type": "object",
"properties": {
"enabled": {"type": "boolean"},
"image": {
"type": "object",
"properties": {
"repository": {"type": "string"},
"tag": {"type": "string"},
"pullPolicy": {"type": "string"}
}
},
"resources": {"type": "object"},
"persistence": {
"type": "object",
"properties": {
"enabled": {"type": "boolean"},
"size": {"type": "string"},
"storageClass": {"type": "string"}
}
}
}
},
"serviceAccount": {
"type": "object",
"properties": {
"create": {"type": "boolean"},
"annotations": {"type": "object"},
"name": {"type": "string"}
}
}
}
}

115
charts/miroir/values.yaml Normal file
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@ -0,0 +1,115 @@
# Default values for miroir.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.
miroir:
image:
repository: ghcr.io/jedarden/miroir
tag: "" # Defaults to Chart.appVersion
pullPolicy: IfNotPresent
replicas: 1 # dev default: override to 2+ in production (requires taskStore.backend=redis)
# Sharding configuration
shards: 64
replicationFactor: 1 # dev default: override to 2 in production
replicaGroups: 1 # dev default: override to 2 in production
# Task store backend (plan §4)
# IMPORTANT: When replicas > 1, backend MUST be "redis" (enforced by values.schema.json)
taskStore:
backend: sqlite # sqlite | redis
path: /data/miroir-tasks.db
url: "" # for redis: redis://host:6379
# Admin UI
admin:
enabled: true
# Scatter policy for unavailable shards
scatter:
unavailableShardPolicy: partial # partial | error
# Horizontal Pod Autoscaler
hpa:
enabled: false # dev default; production: true (requires taskStore.backend=redis)
minReplicas: 2
maxReplicas: 10
targetCPUUtilizationPercentage: 70
targetMemoryUtilizationPercentage: 80
# Ingress configuration
ingress:
enabled: false
className: "nginx"
annotations: {}
# cert-manager.io/cluster-issuer: "letsencrypt-prod"
hosts:
- host: search.example.com
paths:
- path: /
pathType: Prefix
tls: []
# - secretName: search-tls
# hosts:
# - search.example.com
# Resource limits (plan §14.2: 2 vCPU / 3.75 GB per pod)
resources:
limits:
cpu: 2000m
memory: 3840Mi
requests:
cpu: 1000m
memory: 2048Mi
# Pod annotations
podAnnotations: {}
# Pod security context
podSecurityContext:
runAsNonRoot: true
runAsUser: 1000
fsGroup: 1000
# Container security context
securityContext:
allowPrivilegeEscalation: false
readOnlyRootFilesystem: true
capabilities:
drop:
- ALL
# Service configuration
service:
type: ClusterIP
port: 7700
annotations: {}
# Existing secret with keys: masterKey, nodeMasterKey, adminApiKey
existingSecret: ""
# Redis deployment (when taskStore.backend=redis)
redis:
enabled: false
image:
repository: redis
tag: 7-alpine
pullPolicy: IfNotPresent
resources:
limits:
cpu: 500m
memory: 256Mi
requests:
cpu: 100m
memory: 128Mi
persistence:
enabled: false
size: 1Gi
storageClass: ""
# Service account
serviceAccount:
create: true
annotations: {}
name: ""

View file

@ -47,3 +47,5 @@ harness = false
proptest = "1"
pretty_assertions = "1"
tempfile = "3"
testcontainers = "0.23"
arbitrary = { version = "1", features = ["derive"] }

View file

@ -101,7 +101,7 @@ fn main() {
result.old_shard_cv,
result.new_shard_cv,
);
println!(" (computed in {:.2?})", elapsed);
println!(" (computed in {elapsed:.2?})");
}
println!();
@ -111,7 +111,7 @@ fn main() {
println!();
for (label, params, result, _elapsed) in &results {
println!("--- {} ---", label);
println!("--- {label} ---");
println!(" doc_size: {} bytes", params.doc_size_bytes);
println!(
" corpus: {} bytes ({:.2} GB)",
@ -203,7 +203,7 @@ fn main() {
let cv_ok = result.old_shard_cv < 0.05 && result.new_shard_cv < 0.05;
let status = |ok| if ok { "PASS" } else { "FAIL" };
println!(" {}:", label);
println!(" {label}:");
println!(
" storage amplification == 2.0×: {} ({:.4}×)",
status(storage_ok),

View file

@ -78,12 +78,12 @@ fn main() {
let mut results = Vec::new();
for (label, params) in &test_matrix {
println!("Running: {}", label);
println!("Running: {label}");
let start = std::time::Instant::now();
let result = simulate(params);
let elapsed = start.elapsed();
results.push((label, params.clone(), result, elapsed));
println!(" Completed in {:.2?}", elapsed);
println!(" Completed in {elapsed:.2?}");
println!();
}
@ -124,7 +124,7 @@ fn main() {
println!();
for (label, params, result, elapsed) in &results {
println!("--- {} ---", label);
println!("--- {label} ---");
println!(" configuration:");
println!(" total_docs: {}", params.total_docs);
println!(" shard_count: {}", params.shard_count);
@ -167,7 +167,7 @@ fn main() {
result.aggregate.mean_first_divergence
);
println!();
println!(" computed in: {:.2?}", elapsed);
println!(" computed in: {elapsed:.2?}");
println!();
}
@ -181,7 +181,7 @@ fn main() {
let mut worst_queries: Vec<_> = result.query_results.iter().collect();
worst_queries.sort_by(|a, b| a.kendall_tau.partial_cmp(&b.kendall_tau).unwrap());
println!("--- {} ---", label);
println!("--- {label} ---");
for qr in worst_queries.iter().take(5) {
println!(
" Query {}: τ={:.4}, Jaccard={:.4}, first_div={}",
@ -200,7 +200,7 @@ fn main() {
// Validate threshold.
println!("═══════════════════════════════════════════════════════════════════");
println!("Threshold Validation (τ ≥ {:.2})", THRESHOLD);
println!("Threshold Validation (τ ≥ {THRESHOLD:.2})");
println!("═══════════════════════════════════════════════════════════════════");
println!();
@ -220,10 +220,10 @@ fn main() {
println!();
if all_pass {
println!("All scenarios PASSED the τ ≥ {:.2} threshold.", THRESHOLD);
println!("All scenarios PASSED the τ ≥ {THRESHOLD:.2} threshold.");
println!("Score comparability is maintained across shard population skew.");
} else {
println!("Some scenarios FAILED the τ ≥ {:.2} threshold.", THRESHOLD);
println!("Some scenarios FAILED the τ ≥ {THRESHOLD:.2} threshold.");
println!("Score normalization may be needed for skewed shard distributions.");
}

View file

@ -55,8 +55,7 @@ pub fn validate(cfg: &MiroirConfig) -> Result<(), ConfigError> {
let rotate_before = cfg.search_ui.scoped_key_rotate_before_expiry_days;
if rotate_before >= max_age {
return Err(ConfigError::Validation(format!(
"search_ui.scoped_key_rotate_before_expiry_days ({}) must be strictly less than scoped_key_max_age_days ({})",
rotate_before, max_age
"search_ui.scoped_key_rotate_before_expiry_days ({rotate_before}) must be strictly less than scoped_key_max_age_days ({max_age})"
)));
}
}

View file

@ -453,7 +453,7 @@ impl MigrationCoordinator {
if !matches!(phase, MigrationPhase::CutoverDraining) {
return Err(MigrationError::InvalidTransition(
ShardId(0),
format!("expected CutoverDraining, got {}", phase),
format!("expected CutoverDraining, got {phase}"),
));
}

View file

@ -39,7 +39,7 @@ impl TimeWindow {
pub fn parse(s: &str) -> Result<Self, String> {
let (start, end) = s
.split_once('-')
.ok_or_else(|| format!("expected HH:MM-HH:MM, got {}", s))?;
.ok_or_else(|| format!("expected HH:MM-HH:MM, got {s}"))?;
Ok(TimeWindow {
start_mins: Self::parse_hm(start)?,
end_mins: Self::parse_hm(end)?,
@ -49,11 +49,11 @@ impl TimeWindow {
fn parse_hm(hm: &str) -> Result<u16, String> {
let (h, m) = hm
.split_once(':')
.ok_or_else(|| format!("expected HH:MM, got {}", hm))?;
let h: u16 = h.parse().map_err(|_| format!("invalid hour: {}", h))?;
let m: u16 = m.parse().map_err(|_| format!("invalid minute: {}", m))?;
.ok_or_else(|| format!("expected HH:MM, got {hm}"))?;
let h: u16 = h.parse().map_err(|_| format!("invalid hour: {h}"))?;
let m: u16 = m.parse().map_err(|_| format!("invalid minute: {m}"))?;
if h >= 24 || m >= 60 {
return Err(format!("time out of range: {}", hm));
return Err(format!("time out of range: {hm}"));
}
Ok(h * 60 + m)
}
@ -263,7 +263,7 @@ pub fn simulate(params: &SimParams) -> SimResult {
.map(|g| {
let mut group = Group::new(g);
for n in 0..nodes_per_group {
group.add_node(NodeId::new(format!("node-g{}-n{}", g, n)));
group.add_node(NodeId::new(format!("node-g{g}-n{n}")));
}
group
})
@ -282,7 +282,7 @@ pub fn simulate(params: &SimParams) -> SimResult {
let mut node_storage_new: Vec<u64> = vec![0; total_nodes];
for i in 0..total_docs {
let key = format!("doc-{}", i);
let key = format!("doc-{i}");
let old_shard = shard_for_key(&key, params.old_shards);
let new_shard = shard_for_key(&key, params.new_shards);

View file

@ -44,6 +44,10 @@ pub fn query_group(query_seq: u64, replica_groups: u32) -> u32 {
}
/// The covering set for a search: one node per shard within the chosen group.
///
/// Returns a Vec where index i contains the node to query for shard i.
/// The length is always exactly shard_count, even if multiple shards
/// map to the same node.
pub fn covering_set(shard_count: u32, group: &Group, rf: usize, query_seq: u64) -> Vec<NodeId> {
(0..shard_count)
.map(|shard_id| {
@ -51,8 +55,6 @@ pub fn covering_set(shard_count: u32, group: &Group, rf: usize, query_seq: u64)
// rotate through replicas for intra-group load balancing
replicas[(query_seq as usize) % replicas.len()].clone()
})
.collect::<std::collections::HashSet<_>>()
.into_iter()
.collect()
}
@ -62,3 +64,461 @@ pub fn shard_for_key(primary_key: &str, shard_count: u32) -> u32 {
primary_key.hash(&mut h);
(h.finish() % shard_count as u64) as u32
}
#[cfg(test)]
mod tests {
use super::*;
use crate::topology::{Node, NodeId};
// Test 1: Rendezvous assignment is deterministic given fixed node list
#[test]
fn test_rendezvous_determinism() {
let nodes: Vec<NodeId> = vec!["node1", "node2", "node3"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let shard_id = 42;
let assignment1 = assign_shard_in_group(shard_id, &nodes, 1);
let assignment2 = assign_shard_in_group(shard_id, &nodes, 1);
assert_eq!(assignment1, assignment2);
}
// Test 2: Score is stable across calls
#[test]
fn test_score_stability() {
let score1 = score(123, "node1");
let score2 = score(123, "node1");
assert_eq!(score1, score2);
}
// Test 3: Different shard+node pairs produce different scores
#[test]
fn test_score_uniqueness() {
let score1 = score(1, "node1");
let score2 = score(1, "node2");
let score3 = score(2, "node1");
assert_ne!(score1, score2);
assert_ne!(score1, score3);
assert_ne!(score2, score3);
}
// Test 4: Adding a 4th node moves at most ~2 × (1/4) of shards
#[test]
fn test_minimal_reshuffling_on_add() {
let nodes_3: Vec<NodeId> = vec!["node1", "node2", "node3"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let nodes_4: Vec<NodeId> = vec!["node1", "node2", "node3", "node4"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let shard_count = 100;
let rf = 1;
let mut moved_count = 0;
for shard_id in 0..shard_count {
let assign_3 = assign_shard_in_group(shard_id, &nodes_3, rf);
let assign_4 = assign_shard_in_group(shard_id, &nodes_4, rf);
// Shard moved if its primary owner changed
if assign_3.first() != assign_4.first() {
moved_count += 1;
}
}
// Expected: at most ~2 × (1/4) = 50% of shards
let max_expected = (shard_count as f64 * 0.5).ceil() as usize;
assert!(
moved_count <= max_expected,
"Expected ≤ {max_expected} shards to move, but {moved_count} moved"
);
}
// Test 5: 64 shards / 3 nodes / RF=1 → each node holds roughly equal shards
#[test]
fn test_shard_distribution_64_3_rf1() {
let nodes: Vec<NodeId> = vec!["node1", "node2", "node3"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let shard_count = 64;
let rf = 1;
let mut node_shard_counts: std::collections::HashMap<String, usize> =
std::collections::HashMap::new();
for shard_id in 0..shard_count {
let assignment = assign_shard_in_group(shard_id, &nodes, rf);
if let Some(node) = assignment.first() {
*node_shard_counts
.entry(node.as_str().to_string())
.or_insert(0) += 1;
}
}
// Check that the distribution is reasonably balanced:
// - No node should have less than half of the ideal (21.33 / 2 ≈ 10)
// - No node should have more than 1.5x the ideal (21.33 * 1.5 ≈ 32)
let ideal = shard_count as f64 / nodes.len() as f64;
for count in node_shard_counts.values() {
assert!(
*count as f64 >= ideal * 0.5 && *count as f64 <= ideal * 1.5,
"Node shard count {count} outside reasonable range around ideal {ideal:.2}"
);
}
// Total should equal shard_count
let total: usize = node_shard_counts.values().sum();
assert_eq!(total, shard_count as usize);
}
// Test 6: Top-RF placement changes minimally on add/remove
#[test]
fn test_top_rf_stability() {
let nodes_3: Vec<NodeId> = vec!["node1", "node2", "node3"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let nodes_4: Vec<NodeId> = vec!["node1", "node2", "node3", "node4"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let rf = 2;
let shard_count = 100;
let mut changed_count = 0;
for shard_id in 0..shard_count {
let assign_3 = assign_shard_in_group(shard_id, &nodes_3, rf);
let assign_4 = assign_shard_in_group(shard_id, &nodes_4, rf);
// Count how many of the top-RF nodes changed
let set_3: std::collections::HashSet<_> = assign_3.iter().collect();
let set_4: std::collections::HashSet<_> = assign_4.iter().collect();
// A change is if the intersection is less than RF
let intersection = set_3.intersection(&set_4).count();
if intersection < rf {
changed_count += 1;
}
}
// Adding a 4th node affects approximately 1/4 of assignments
// But with RF=2, we need to account for overlap
// Expected: roughly 50-60% might have some change
let max_expected = (shard_count as f64 * 0.6).ceil() as usize;
assert!(
changed_count <= max_expected,
"Expected ≤ {max_expected} shards to change, but {changed_count} changed"
);
// Also verify that not everything changed
let min_expected = (shard_count as f64 * 0.2).ceil() as usize;
assert!(
changed_count >= min_expected,
"Expected at least {min_expected} shards to change, but only {changed_count} changed"
);
}
// Test 7: write_targets returns exactly RG × RF nodes
#[test]
fn test_write_targets_count() {
let mut topology = Topology::new(2); // RF=2
// 3 replica groups, 2 nodes each
for group_id in 0..3 {
for node_idx in 0..2 {
let node = Node::new(
NodeId::new(format!("node-g{group_id}-{node_idx}")),
format!("http://example.com/{group_id}"),
group_id,
);
topology.add_node(node);
}
}
let shard_id = 42;
let targets = write_targets(shard_id, &topology);
// Should be RG (3) × RF (2) = 6 nodes
assert_eq!(targets.len(), 6);
// All targets should be unique
let unique: std::collections::HashSet<_> = targets.iter().collect();
assert_eq!(unique.len(), 6);
// Each replica group should contribute exactly RF nodes
for group in topology.groups() {
let group_targets: Vec<_> = targets
.iter()
.filter(|t| group.nodes().contains(t))
.collect();
assert_eq!(
group_targets.len(),
topology.rf(),
"Group {} should contribute exactly RF nodes",
group.id
);
}
}
// Test 8: query_group distributes evenly
#[test]
fn test_query_group_distribution() {
let replica_groups = 3u32;
let queries = 1000u64;
let mut counts = vec![0; replica_groups as usize];
for seq in 0..queries {
let group = query_group(seq, replica_groups);
counts[group as usize] += 1;
}
// Each group should get roughly the same number of queries
let expected = (queries / replica_groups as u64) as usize;
for count in counts {
assert!(
count >= expected - 1 && count <= expected + 1,
"Group query count {} outside expected range [{}, {}]",
count,
expected - 1,
expected + 1
);
}
}
// Test 9: covering_set returns exactly one node per shard
#[test]
fn test_covering_set_one_per_shard() {
let mut topology = Topology::new(2); // RF=2
let group_id = 0;
let num_nodes = 5;
// Add nodes to a single group
for node_idx in 0..num_nodes {
let node = Node::new(
NodeId::new(format!("node-{node_idx}")),
format!("http://example.com/{node_idx}"),
group_id,
);
topology.add_node(node);
}
let group = topology.group(group_id).unwrap();
let shard_count = 64;
let rf = 2;
let query_seq = 0;
let covering = covering_set(shard_count, group, rf, query_seq);
// Should have exactly one node per shard
assert_eq!(covering.len(), shard_count as usize);
// All nodes should be from the group
for node in &covering {
assert!(group.nodes().contains(node));
}
}
// Test 10: covering_set handles intra-group replica rotation
#[test]
fn test_covering_set_replica_rotation() {
let mut topology = Topology::new(2); // RF=2
let group_id = 0;
// Add 3 nodes to a single group
for node_idx in 0..3 {
let node = Node::new(
NodeId::new(format!("node-{node_idx}")),
format!("http://example.com/{node_idx}"),
group_id,
);
topology.add_node(node);
}
let group = topology.group(group_id).unwrap();
let shard_count = 10;
let rf = 2;
let covering_0 = covering_set(shard_count, group, rf, 0);
let covering_1 = covering_set(shard_count, group, rf, 1);
// With RF=2, the covering set should rotate between the two replicas
// For each shard, the node should be different between query_seq 0 and 1
// Note: This is true for most shards but not all, since assignment is deterministic
let mut rotated_count = 0;
for (n0, n1) in covering_0.iter().zip(covering_1.iter()) {
if n0 != n1 {
rotated_count += 1;
}
}
// At least some shards should rotate (ideally most/all)
assert!(
rotated_count >= shard_count as usize / 2,
"Expected at least half of shards to rotate, but only {rotated_count} did"
);
}
// Test 11: shard_for_key is deterministic
#[test]
fn test_shard_for_key_determinism() {
let key = "user:12345";
let shard_count = 64;
let shard1 = shard_for_key(key, shard_count);
let shard2 = shard_for_key(key, shard_count);
assert_eq!(shard1, shard2);
assert!(shard1 < shard_count);
}
// Test 12: shard_for_key distributes keys evenly
#[test]
fn test_shard_for_key_distribution() {
let shard_count = 64;
let keys = 1000;
let mut counts = vec![0; shard_count as usize];
for i in 0..keys {
let key = format!("user:{i}");
let shard = shard_for_key(&key, shard_count);
counts[shard as usize] += 1;
}
// Each shard should get roughly keys / shard_count entries
let expected = keys / shard_count as usize;
for count in counts {
// Allow some variance due to hash distribution
assert!(
count >= expected / 2 && count <= expected * 2,
"Shard count {count} outside reasonable range"
);
}
}
// Test 13: assign_shard_in_group respects RF limit
#[test]
fn test_assign_shard_respects_rf() {
let nodes: Vec<NodeId> = vec!["node1", "node2", "node3", "node4", "node5"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let shard_id = 42;
for rf in 1..=5 {
let assignment = assign_shard_in_group(shard_id, &nodes, rf);
assert_eq!(
assignment.len(),
rf,
"Assignment should return exactly RF nodes"
);
}
}
// Test 14: assign_shard_in_group handles RF larger than node count
#[test]
fn test_assign_shard_rf_larger_than_nodes() {
let nodes: Vec<NodeId> = vec!["node1", "node2", "node3"]
.into_iter()
.map(|s| NodeId::new(s.to_string()))
.collect();
let shard_id = 42;
let rf = 5;
let assignment = assign_shard_in_group(shard_id, &nodes, rf);
// Should return all available nodes when RF > node count
assert_eq!(assignment.len(), nodes.len());
}
// Test 15: Empty node list returns empty assignment
#[test]
fn test_assign_shard_empty_nodes() {
let nodes: Vec<NodeId> = vec![];
let shard_id = 42;
let rf = 2;
let assignment = assign_shard_in_group(shard_id, &nodes, rf);
assert!(assignment.is_empty());
}
// Test 16: write_targets with empty topology
#[test]
fn test_write_targets_empty_topology() {
let topology = Topology::new(2);
let shard_id = 42;
let targets = write_targets(shard_id, &topology);
assert!(targets.is_empty());
}
// Test 17: shard_for_key with zero shard_count handles edge case
#[test]
#[should_panic(expected = "attempt to calculate the remainder with a divisor of zero")]
fn test_shard_for_key_zero_shard_count() {
// This test verifies the panic behavior - in production this should be validated
// at the API boundary
shard_for_key("test", 0);
}
// Test 18: Group-scoped assignment prevents same-group replica placement
#[test]
fn test_group_scoped_assignment() {
// Create topology with 2 groups, 2 nodes each
let mut topology = Topology::new(1);
let shard_id = 42;
// Group 0
topology.add_node(Node::new(
NodeId::new("g0n0".to_string()),
"http://g0n0".to_string(),
0,
));
topology.add_node(Node::new(
NodeId::new("g0n1".to_string()),
"http://g0n1".to_string(),
0,
));
// Group 1
topology.add_node(Node::new(
NodeId::new("g1n0".to_string()),
"http://g1n0".to_string(),
1,
));
topology.add_node(Node::new(
NodeId::new("g1n1".to_string()),
"http://g1n1".to_string(),
1,
));
let targets = write_targets(shard_id, &topology);
// With RG=2, RF=1, should get 2 targets (one from each group)
assert_eq!(targets.len(), 2);
// Verify one from each group
let g0_target = targets.iter().any(|t| {
topology
.node(t)
.map(|n| n.replica_group == 0)
.unwrap_or(false)
});
let g1_target = targets.iter().any(|t| {
topology
.node(t)
.map(|n| n.replica_group == 1)
.unwrap_or(false)
});
assert!(g0_target, "Should have one target from group 0");
assert!(g1_target, "Should have one target from group 1");
}
}

View file

@ -33,14 +33,14 @@ pub enum TaskStoreError {
impl fmt::Display for TaskStoreError {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::InvalidBackend(backend) => write!(f, "invalid backend: {}", backend),
Self::Sqlite(err) => write!(f, "SQLite error: {}", err),
Self::Redis(err) => write!(f, "Redis error: {}", err),
Self::Json(err) => write!(f, "JSON error: {}", err),
Self::NotFound(key) => write!(f, "not found: {}", key),
Self::AlreadyExists(key) => write!(f, "already exists: {}", key),
Self::InvalidData(msg) => write!(f, "invalid data: {}", msg),
Self::Internal(msg) => write!(f, "internal error: {}", msg),
Self::InvalidBackend(backend) => write!(f, "invalid backend: {backend}"),
Self::Sqlite(err) => write!(f, "SQLite error: {err}"),
Self::Redis(err) => write!(f, "Redis error: {err}"),
Self::Json(err) => write!(f, "JSON error: {err}"),
Self::NotFound(key) => write!(f, "not found: {key}"),
Self::AlreadyExists(key) => write!(f, "already exists: {key}"),
Self::InvalidData(msg) => write!(f, "invalid data: {msg}"),
Self::Internal(msg) => write!(f, "internal error: {msg}"),
}
}
}

View file

@ -3,9 +3,6 @@
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
#[cfg(test)]
use proptest::prelude::*;
// ============================================================================
// Table 1: Tasks
// ============================================================================
@ -27,7 +24,6 @@ pub struct Task {
/// Status of a Miroir task.
#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
#[cfg_attr(test, derive(proptest::arbitrary::Arbitrary))]
pub enum TaskStatus {
/// Task is enqueued.
Enqueued,

View file

@ -3,7 +3,7 @@
#![cfg(feature = "task-store")]
use miroir_core::task_store::schema::*;
use miroir_core::task_store::*;
use miroir_core::task_store::{SqliteTaskStore, TaskStore};
use proptest::prelude::*;
use std::collections::HashMap;
@ -579,25 +579,35 @@ async fn session_roundtrip() {
/// Proptest: task list with filtering.
fn task_list_strategy() -> impl Strategy<Value = Vec<Task>> {
prop::collection::vec((any::<String>(), any::<u64>(), any::<TaskStatus>()), 0..100).prop_map(
|items| {
items
.into_iter()
.enumerate()
.map(|(i, (id, created_at, status))| Task {
miroir_id: if id.is_empty() {
format!("task-{}", i)
} else {
id
},
created_at,
status,
node_tasks: HashMap::new(),
error: None,
})
.collect()
},
let task_status_strategy = prop_oneof![
Just(TaskStatus::Enqueued),
Just(TaskStatus::Processing),
Just(TaskStatus::Succeeded),
Just(TaskStatus::Failed),
Just(TaskStatus::Canceled),
];
prop::collection::vec(
(any::<String>(), any::<u64>(), task_status_strategy),
0..100,
)
.prop_map(|items| {
items
.into_iter()
.enumerate()
.map(|(i, (id, created_at, status))| Task {
miroir_id: if id.is_empty() {
format!("task-{i}")
} else {
id
},
created_at,
status,
node_tasks: HashMap::new(),
error: None,
})
.collect()
})
}
proptest! {

View file

@ -7,14 +7,14 @@ use miroir_core::task_store::*;
use miroir_core::task_store::{RedisTaskStore, TaskStore};
use std::collections::HashMap;
use std::sync::Arc;
use testcontainers::runners::AsyncRunner;
/// Helper function to create a Redis container and connect to it.
async fn create_redis_store() -> Arc<RedisTaskStore> {
let docker = testcontainers::runners::AsyncRunner::default();
let redis_image = testcontainers::GenericImage::new("redis", "7.2-alpine");
let node = docker.start(redis_image).await;
let port = node.get_host_port_ipv4(6379).await;
let url = format!("redis://127.0.0.1:{}", port);
let container = redis_image.start().await.unwrap();
let port = container.get_host_port_ipv4(6379).await.unwrap();
let url = format!("redis://127.0.0.1:{port}");
let store = RedisTaskStore::new(&url).await.unwrap();
store.initialize().await.unwrap();

View file

@ -80,7 +80,7 @@ async fn run_start(
match &guard {
WindowGuardResult::Denied { utc_now, allowed } => {
if !force {
eprintln!("Error: resharding is not allowed at {}.", utc_now);
eprintln!("Error: resharding is not allowed at {utc_now}.");
eprintln!("Allowed windows: {}", allowed.join(", "));
eprintln!("Use --force to override (not recommended during peak load).");
std::process::exit(1);
@ -92,7 +92,7 @@ async fn run_start(
);
}
WindowGuardResult::Allowed { window } => {
eprintln!("Schedule window check: within allowed window ({})", window);
eprintln!("Schedule window check: within allowed window ({window})");
}
WindowGuardResult::NoRestriction => {
eprintln!("Schedule window check: no restriction configured");
@ -114,14 +114,11 @@ async fn run_start(
}
if dry_run {
println!(
"Dry run: would reshard index '{}' to {} shards",
index, new_shards
);
println!(" throttle: {} docs/sec", throttle);
println!(" force: {}", force);
println!(" schedule_window: {:?}", schedule_window);
println!(" window_guard: {:?}", guard);
println!("Dry run: would reshard index '{index}' to {new_shards} shards");
println!(" throttle: {throttle} docs/sec");
println!(" force: {force}");
println!(" schedule_window: {schedule_window:?}");
println!(" window_guard: {guard:?}");
println!(
" config.backfill_concurrency: {}",
config.backfill_concurrency
@ -191,7 +188,7 @@ fn load_reshard_config() -> Result<ReshardingConfig, Box<dyn std::error::Error>>
let config: ReshardingConfig = resharding
.try_into()
.map_err(|e| format!("Invalid [resharding] config: {}", e))?;
.map_err(|e| format!("Invalid [resharding] config: {e}"))?;
Ok(config)
}

View file

@ -34,9 +34,9 @@ pub enum CredentialError {
impl std::fmt::Display for CredentialError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
CredentialError::NotFound(msg) => write!(f, "Credential not found: {}", msg),
CredentialError::IoError(e) => write!(f, "IO error: {}", e),
CredentialError::ParseError(msg) => write!(f, "Parse error: {}", msg),
CredentialError::NotFound(msg) => write!(f, "Credential not found: {msg}"),
CredentialError::IoError(e) => write!(f, "IO error: {e}"),
CredentialError::ParseError(msg) => write!(f, "Parse error: {msg}"),
}
}
}
@ -94,7 +94,7 @@ fn load_from_credentials_file() -> Result<Option<String>, CredentialError> {
let contents = fs::read_to_string(path).map_err(CredentialError::IoError)?;
let creds: CredentialsFile = toml::from_str(&contents)
.map_err(|e| CredentialError::ParseError(format!("Invalid TOML: {}", e)))?;
.map_err(|e| CredentialError::ParseError(format!("Invalid TOML: {e}")))?;
if let Some(profile) = creds.default {
if let Some(key) = profile.admin_api_key {

View file

@ -95,7 +95,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
// 2. ~/.config/miroir/credentials
// 3. --admin-key flag
let admin_key =
load_admin_key(cli.admin_key).map_err(|e| format!("Failed to load credentials: {}", e))?;
load_admin_key(cli.admin_key).map_err(|e| format!("Failed to load credentials: {e}"))?;
if admin_key.is_none() {
eprintln!("Error: No admin API key found.");

View file

@ -0,0 +1,174 @@
# Redis Memory Accounting (Plan §14.7)
This document validates the Redis memory usage for the Miroir task store when running in HA mode with multiple replicas.
## Redis Keyspace Overview
The Redis backend for Miroir's task store uses the following keyspace patterns:
### Table Keys (Hash + Index Set)
Each of the 14 tables is stored as:
- `miroir:<table>:<id>` → Hash containing the serialized record
- `miroir:<table>:_index` → Set containing all IDs in the table
Tables:
1. `tasks` - Task registry
2. `node_settings_version` - Per-(index, node) settings freshness
3. `aliases` - Single and multi-target aliases
4. `sessions` - Read-your-writes session pins
5. `idempotency_cache` - Write dedup cache
6. `jobs` - Background jobs
7. `leader_lease` - Coordinator lease
8. `canaries` - Canary definitions
9. `canary_runs` - Canary run history
10. `cdc_cursors` - CDC cursors
11. `tenant_map` - API key → tenant mapping
12. `rollover_policies` - ILM rollover policies
13. `search_ui_config` - Search UI configuration
14. `admin_sessions` - Admin UI sessions
### Special-Purpose Keys
#### Rate Limiting (§13.21)
- `miroir:ratelimit:searchui:<ip>` - Per-IP search UI rate limit counter (EXPIRE after window)
- `miroir:ratelimit:adminlogin:<ip>` - Admin login rate limit counter
- `miroir:ratelimit:backoff:<ip>` - Per-IP backoff flag (EXPIRE after backoff duration)
#### CDC Overflow (§13.13)
- `miroir:cdc:overflow:<sink>` - CDC overflow buffer (1 GiB per sink default)
#### Scoped Key Rotation (§13.21)
- `miroir:search_ui_scoped_key:<index>` - Current scoped key for an index
- `miroir:search_ui_scoped_key_observed:<pod>:<index>` - Pod observation marker
#### Job Queue (§14.5)
- `miroir:jobs:enqueued` - List of enqueued job IDs
#### Admin Session Revocation (§13.19)
- `miroir:admin_session:revoked` - Pub/Sub channel for instant logout propagation
## Memory Sizing Formula
### Per-Record Overhead
Redis has the following per-key overhead:
- Key: ~100 bytes (including key length and overhead)
- Value: varies by type
- Hash entry: ~50 bytes per field
- Set entry: ~50 bytes per member
### Estimated Memory per Table
| Table | Avg Record Size | Est. Count | Memory (approx) |
|-------|----------------|------------|-----------------|
| tasks | 500 bytes | 10,000 | ~5 MB |
| node_settings_version | 100 bytes | 500 | ~50 KB |
| aliases | 200 bytes | 100 | ~20 KB |
| sessions | 150 bytes | 1,000 | ~150 KB |
| idempotency_cache | 1 KB | 10,000 | ~10 MB (TTL 1h) |
| jobs | 400 bytes | 1,000 | ~400 KB |
| leader_lease | 200 bytes | 1 | ~200 bytes |
| canaries | 300 bytes | 50 | ~15 KB |
| canary_runs | 200 bytes | 10,000 | ~2 MB |
| cdc_cursors | 100 bytes | 100 | ~10 KB |
| tenant_map | 500 bytes | 100 | ~50 KB |
| rollover_policies | 300 bytes | 50 | ~15 KB |
| search_ui_config | 2 KB | 100 | ~200 KB |
| admin_sessions | 150 bytes | 100 | ~15 KB |
| **Subtotal** | - | - | **~18 MB** |
### Rate Limiting Memory
Search UI rate limiter (§13.21):
- Per-IP bucket: ~100 bytes
- Active IPs: ~10,000 (production estimate)
- TTL: 60 seconds (configurable via `search_ui.rate_limit.redis_ttl_s`)
- **Memory: ~1 MB** (steady state, with TTL)
Admin login rate limiter:
- Per-IP bucket: ~100 bytes
- Active IPs: ~100
- TTL: 300 seconds (5 minutes)
- **Memory: ~10 KB**
Backoff markers:
- Per-IP backoff: ~100 bytes
- Active backoffs: ~100
- TTL: variable (typically 60-300 seconds)
- **Memory: ~10 KB**
### CDC Overflow Memory
- Per-sink buffer: 1 GiB (configurable via `cdc.buffer.redis_bytes`)
- Typical sinks: 1-3
- **Memory: 1-3 GiB** (only when CDC is enabled and overflow occurs)
### Scoped Key Rotation Memory
- Per-index key: ~200 bytes
- Indices: ~100
- Per-pod observation markers: 100 bytes × (pods × indices)
- Pods (HPA max): 10
- **Memory: ~20 KB + 100 KB = ~120 KB**
### Total Estimated Memory Usage
| Component | Memory |
|-----------|--------|
| Tables (steady state) | ~18 MB |
| Rate limiting | ~1 MB |
| Scoped key rotation | ~120 KB |
| **Subtotal (without CDC overflow)** | **~19 MB** |
| CDC overflow (per sink) | 1 GiB (optional) |
### Production Sizing Recommendation
For a production deployment with CDC disabled:
- **Minimum Redis memory: 64 MB** (provides headroom for bursts)
- **Recommended Redis memory: 128-256 MB** (comfortable headroom)
For a production deployment with CDC enabled:
- **Per-sink buffer: 1 GiB** (configurable)
- **Minimum Redis memory: 1 GiB + 64 MB per sink**
- **Recommended Redis memory: 2 GiB** (for single-sink deployments)
## Validation Script
The following script can be used to validate Redis memory usage in a running deployment:
```bash
# Connect to Redis and get memory info
redis-cli INFO memory
# Get memory usage for all Miroir keys
redis-cli --scan --pattern 'miroir:*' | xargs redis-cli MEMORY USAGE
# Get total memory used by Miroir
redis-cli --scan --pattern 'miroir:*' | xargs redis-cli MEMORY USAGE | awk '{sum+=$1} END {print sum}'
```
## Helm Chart Defaults
The Helm chart (see `charts/miroir/values.yaml`) sets the following defaults:
```yaml
redis:
resources:
limits:
cpu: 500m
memory: 256Mi
requests:
cpu: 100m
memory: 128Mi
```
These defaults are appropriate for deployments without CDC overflow. For CDC-enabled deployments, increase the memory limit to at least 2 GiB.
## References
- Plan §4: Task store schema
- Plan §13.13: CDC cursors and overflow
- Plan §13.19: Admin sessions and Pub/Sub revocation
- Plan §13.21: Search UI rate limiting and scoped key rotation
- Plan §14.7: Deployment sizing matrix

View file

@ -1,4 +1,4 @@
[toolchain]
channel = "1.87"
channel = "1.88"
components = ["rustfmt", "clippy"]
targets = ["x86_64-unknown-linux-musl", "aarch64-unknown-linux-musl"]