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Fix uninitialized replication stats (#20260)

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Services are unfrozen before `initBackgroundReplication` is finished. This means that 
the globalReplicationStats write is racy. Switch to an atomic pointer.

Provide the `ReplicationPool` with the stats, so it doesn't have to be grabbed 
from the atomic pointer on every use.

All other loads and checks are nil, and calls return empty values when stats 
still haven't been initialized.
This commit is contained in:
Klaus Post
2024-08-15 05:04:40 -07:00
committed by GitHub
parent 3b1aa40372
commit f1302c40fe
19 changed files with 175 additions and 101 deletions
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6
cmd/metrics-v2.go
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@@ -2313,8 +2313,8 @@ func getReplicationNodeMetrics(opts MetricsGroupOpts) *MetricsGroupV2 {
var ml []MetricV2
// common operational metrics for bucket replication and site replication - published
// at cluster level
if globalReplicationStats != nil {
qs := globalReplicationStats.getNodeQueueStatsSummary()
if rStats := globalReplicationStats.Load(); rStats != nil {
qs := rStats.getNodeQueueStatsSummary()
activeWorkersCount := MetricV2{
Description: getClusterReplActiveWorkersCountMD(),
}
@@ -3245,7 +3245,7 @@ func getBucketUsageMetrics(opts MetricsGroupOpts) *MetricsGroupV2 {
var bucketReplStats map[string]BucketStats
if !globalSiteReplicationSys.isEnabled() {
bucketReplStats = globalReplicationStats.getAllLatest(dataUsageInfo.BucketsUsage)
bucketReplStats = globalReplicationStats.Load().getAllLatest(dataUsageInfo.BucketsUsage)
}
for bucket, usage := range dataUsageInfo.BucketsUsage {
quota, _ := globalBucketQuotaSys.Get(ctx, bucket)