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Various improvements in replication (#11949)

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- collect real time replication metrics for prometheus.
- add pending_count, failed_count metric for total pending/failed replication operations.

- add API to get replication metrics

- add MRF worker to handle spill-over replication operations

- multiple issues found with replication
- fixes an issue when client sends a bucket
 name with `/` at the end from SetRemoteTarget
 API call make sure to trim the bucket name to 
 avoid any extra `/`.

- hold write locks in GetObjectNInfo during replication
  to ensure that object version stack is not overwritten
  while reading the content.

- add additional protection during WriteMetadata() to
  ensure that we always write a valid FileInfo{} and avoid
  ever writing empty FileInfo{} to the lowest layers.

Co-authored-by: Poorna Krishnamoorthy <poorna@minio.io>
Co-authored-by: Harshavardhana <harsha@minio.io>
This commit is contained in:
Poorna Krishnamoorthy
2021-04-03 09:03:42 -07:00
committed by GitHub
parent dca7cf7200
commit 47c09a1e6f
36 changed files with 1914 additions and 496 deletions
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2
cmd/object-api-interface.go
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@@ -91,7 +91,7 @@ type ObjectLayer interface {
// Storage operations.
Shutdown(context.Context) error
NSScanner(ctx context.Context, bf *bloomFilter, updates chan<- DataUsageInfo) error
NSScanner(ctx context.Context, bf *bloomFilter, updates chan<- madmin.DataUsageInfo) error
BackendInfo() madmin.BackendInfo
StorageInfo(ctx context.Context) (StorageInfo, []error)