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Posted to issues@ozone.apache.org by "Arpit Agarwal (Jira)" <ji...@apache.org> on 2020/06/02 19:11:00 UTC
[jira] [Updated] (HDDS-2123) Stalled multi-threaded initial key
creation
[ https://issues.apache.org/jira/browse/HDDS-2123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arpit Agarwal updated HDDS-2123:
--------------------------------
Labels: TriagePending (was: )
> Stalled multi-threaded initial key creation
> -------------------------------------------
>
> Key: HDDS-2123
> URL: https://issues.apache.org/jira/browse/HDDS-2123
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Affects Versions: 0.5.0
> Reporter: Attila Doroszlai
> Priority: Critical
> Labels: TriagePending
> Attachments: datanode.log, om.log, scm.log
>
>
> Multi-threaded key creation via Freon is stalled with to {{appendEntries Timeout}}:
> {code:title=repro}
> cd hadoop-ozone/dist/target/ozone-0.5.0-SNAPSHOT/compose/ozone
> docker-compose up -d --scale datanode=3
> docker-compose exec scm ozone freon rk --numOfVolumes=1 --numOfBuckets=1 --numOfKeys=10 --numOfThreads=10 --replicationType=RATIS --factor=THREE
> {code}
> {code:title=log sample}
> ...
> datanode_3 | 2019-09-13 10:46:11 INFO SegmentedRaftLogWorker:569 - ce855ef6-55f7-4725-a329-f51dff189098@group-E5C50B0B909A-SegmentedRaftLogWorker: created new log segment /data/metadata/ratis/21ee95af-dd0e-464e-8db1-e5c50b0b909a/current
> /log_inprogress_0
> datanode_3 | 2019-09-13 10:50:30 WARN GrpcLogAppender:200 - ce855ef6-55f7-4725-a329-f51dff189098@group-E5C50B0B909A->5d9f5b5e-c9ef-4425-9cda-f0529bb810d9-GrpcLogAppender: appendEntries Timeout, request=ce855ef6-55f7-4725-a329-f51dff189098->5d9f5b5e-c9ef-4425-9cda-f0529bb810d9#105-t2, previous=(t:2, i:2), leaderCommit=2, initializing? false, entries: size=1, first=(t:2, i:3), STATEMACHINELOGENTRY, client-C2E2361828A7, cid=3
> ...
> {code}
> This seems to happen only if executed as a first key creation command. Works fine after having created some keys from single-thread (using {{ozone sh}} or {{ozone freon rk --numOfThreads=1 ...}}).
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