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ba2dcfc26c
add-admin-and-worker-to-helm-charts
add-ec-vacuum
add_fasthttp_client
add_remote_storage
adding-message-queue-integration-tests
also-delete-parent-directory-if-empty
avoid_releasing_temp_file_on_write
changing-to-zap
collect-public-metrics
copilot/fix-helm-chart-installation
copilot/fix-s3-object-tagging-issue
create-table-snapshot-api-design
data_query_pushdown
dependabot/maven/other/java/client/com.google.protobuf-protobuf-java-3.25.5
dependabot/maven/other/java/examples/org.apache.hadoop-hadoop-common-3.4.0
detect-and-plan-ec-tasks
do-not-retry-if-error-is-NotFound
ec-disk-type-support
enhance-erasure-coding
fasthttp
feature/tus-protocol
filer1_maintenance_branch
fix-GetObjectLockConfigurationHandler
fix-admin-user-creation-7624
fix-mount-http-parallelism
fix-s3-object-tagging-issue-7589
fix-versioning-listing-only
ftp
gh-pages
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logrus
master
message_send
mount2
mq-subscribe
mq2
original_weed_mount
pr-7412
random_access_file
refactor-needle-read-operations
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remote_overlay
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s3-select
sub
tcp_read
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tikv
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dev
helm-3.65.1
v0.69
v0.70beta
v3.33
${ noResults }
chrislu
ba2dcfc26c
The circuit breaker failure threshold (3) and reset timeout (30s) were
hardcoded, making it difficult to tune the client's behavior in different
deployment environments without modifying the code.
Problem:
func shouldSkipUnhealthyFiler(index int32) bool {
if failureCount < 3 { // Hardcoded threshold
return false
}
if time.Since(lastFailureTime) > 30*time.Second { // Hardcoded timeout
return false
}
}
Different environments have different needs:
- High-traffic production: may want lower threshold (2) for faster failover
- Development/testing: may want higher threshold (5) to tolerate flaky networks
- Low-latency services: may want shorter reset timeout (10s)
- Batch processing: may want longer reset timeout (60s)
Solution:
1. Added fields to FilerClientOption:
- FailureThreshold int32 (default: 3)
- ResetTimeout time.Duration (default: 30s)
2. Added fields to FilerClient:
- failureThreshold int32
- resetTimeout time.Duration
3. Applied defaults in NewFilerClient with option override:
failureThreshold := int32(3)
resetTimeout := 30 * time.Second
if opt.FailureThreshold > 0 {
failureThreshold = opt.FailureThreshold
}
if opt.ResetTimeout > 0 {
resetTimeout = opt.ResetTimeout
}
4. Updated shouldSkipUnhealthyFiler to use configurable values:
if failureCount < fc.failureThreshold { ... }
if time.Since(lastFailureTime) > fc.resetTimeout { ... }
Benefits:
✓ Tunable for different deployment environments
✓ Backward compatible (defaults match previous hardcoded values)
✓ No breaking changes to existing code
✓ Better maintainability and flexibility
Example usage:
// Aggressive failover for low-latency production
fc := wdclient.NewFilerClient(filers, dialOpt, dc, &wdclient.FilerClientOption{
FailureThreshold: 2,
ResetTimeout: 10 * time.Second,
})
// Tolerant of flaky networks in development
fc := wdclient.NewFilerClient(filers, dialOpt, dc, &wdclient.FilerClientOption{
FailureThreshold: 5,
ResetTimeout: 60 * time.Second,
})
|
2 weeks ago | |
|---|---|---|
| .. | ||
| css | Fix Broken Links (#5287) | 2 years ago |
| fonts | Change filer UI icon from picture to icon font. | 4 years ago |