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Posted to issues@hbase.apache.org by "Hudson (Jira)" <ji...@apache.org> on 2020/09/24 21:09:00 UTC
[jira] [Commented] (HBASE-24813) ReplicationSource should clear
buffer usage on ReplicationSourceManager upon termination
[ https://issues.apache.org/jira/browse/HBASE-24813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17201771#comment-17201771 ]
Hudson commented on HBASE-24813:
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Results for branch master
[build #65 on builds.a.o|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/65/]: (x) *{color:red}-1 overall{color}*
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details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/65/General_20Nightly_20Build_20Report/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3) report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/65/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(x) {color:red}-1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11 report|https://ci-hadoop.apache.org/job/HBase/job/HBase%20Nightly/job/master/65/JDK11_20Nightly_20Build_20Report_20_28Hadoop3_29/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test{color}
> ReplicationSource should clear buffer usage on ReplicationSourceManager upon termination
> ----------------------------------------------------------------------------------------
>
> Key: HBASE-24813
> URL: https://issues.apache.org/jira/browse/HBASE-24813
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Affects Versions: 3.0.0-alpha-1, 2.3.1, 2.2.6
> Reporter: Wellington Chevreuil
> Assignee: Wellington Chevreuil
> Priority: Major
>
> Following investigations on the issue described by [~elserj] on HBASE-24779, we found out that once a peer is removed, thus killing peers related *ReplicationSource* instance, it may leave *ReplicationSourceManager.totalBufferUsed* inconsistent. This can happen if *ReplicationSourceWALReader* had put some entries on its queue to be processed by *ReplicationSourceShipper,* but the peer removal killed the shipper before it could process the pending entries. When *ReplicationSourceWALReader* thread add entries to the queue, it increments *ReplicationSourceManager.totalBufferUsed* with the sum of the entries sizes. When those entries are read by *ReplicationSourceShipper,* *ReplicationSourceManager.totalBufferUsed* is then decreased. We should also decrease *ReplicationSourceManager.totalBufferUsed* when *ReplicationSource* is terminated, otherwise those unprocessed entries size would be consuming *ReplicationSourceManager.totalBufferUsed __*indefinitely, unless the RS gets restarted. This may be a problem for deployments with multiple peers, or if new peers are added.**
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