HDDS-8172. ECUnderReplicationHandler should consider commands already sent when processing the container #4435
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… sent when processing the container
adoroszlai
approved these changes
Mar 21, 2023
errose28
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Mar 23, 2023
* master: (43 commits) HDDS-8148. Improve log for Pipeline creation failure (apache#4385) HDDS-7853. Add support for RemoveSCM in SCMRatisServer. (apache#4358) HDDS-8042. Display certificate issuer in cert list command. (apache#4429) HDDS-8189. [Snapshot] renamedKeyTable should only track keys in buckets that has at least one active snapshot. (apache#4436) HDDS-8154. Perf: Reuse Mac instances in S3 token validation (apache#4433) HDDS-8245. Info log for keyDeletingService when nonzero number of keys are deleted. (apache#4451) HDDS-8233. ReplicationManager: Throttle delete container commands from over-replication handlers (apache#4447) HDDS-8220. [Ozone-Streaming] Trigger volume check on IOException in StreamDataChannelBase (apache#4428) HDDS-8173. Fix to remove enrties from RocksDB after container gets deleted. (apache#4445) HDDS-7975. Rebalance acceptance tests (apache#4437) HDDS-8152. Reduce S3 acceptance test setup time (apache#4393) HDDS-8172. ECUnderReplicationHandler should consider commands already sent when processing the container (apache#4435) HDDS-7883. [Snapshot] Accommodate FSO, key renames and implement OMSnapshotPurgeRequest for SnapshotDeletingService (apache#4407) HDDS-8168. Make deadlines inside MoveManager for move commands configurable (apache#4415) HDDS-7918. EC: ECBlockReconstructedStripeInputStream should check for spare replicas before failing an index (apache#4441) HDDS-8222. EndpointBase#getBucket should handle BUCKET_NOT_FOUND (apache#4431) HDDS-8068. Fix Exception: JMXJsonServlet, getting attribute RatisRoles of Hadoop:service=OzoneManager. (apache#4352) HDDS-8139. Datanodes should not drop block delete transactions based on transaction ID (apache#4384) HDDS-8216. EC: OzoneClientConfig is overwritten in ECKeyOutputStream (apache#4425) HDDS-8054. Fix NPE in metrics for failed volume (apache#4340) ...
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What changes were proposed in this pull request?
For an EC container which has 2 replicas for the same index, with one decommissioning and one in_maintenance, the decommission logic in ECUnderReplicationHandler can send a command for the replica, and then the maintenance logic can send another replication command for the same container to a different target. If they both succeed it will likely result in over replication.
To solve this, we probably need to adjust the pending ops between each stage of the processing, so as then the maintenance logic would be "fixed by pending" and avoid sending the second command.
What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-8172
How was this patch tested?
Existing tests modified.