[ https://issues.apache.org/jira/browse/HDFS-10743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brahma Reddy Battula updated HDFS-10743: ---------------------------------------- Target Version/s: 3.4.0 (was: 3.3.0) Bulk update: moved all 3.3.0 non-blocker issues, please move back if it is a blocker. > MiniDFSCluster test runtimes can be drastically reduce > ------------------------------------------------------ > > Key: HDFS-10743 > URL: https://issues.apache.org/jira/browse/HDFS-10743 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs > Affects Versions: 2.0.0-alpha > Reporter: Daryn Sharp > Assignee: Kuhu Shukla > Priority: Major > Attachments: HDFS-10743.001.patch, HDFS-10743.002.patch, > HDFS-10743.003.patch > > > {{MiniDFSCluster}} tests have excessive runtimes. The main problem appears > to be the heartbeat interval. The NN may have to wait up to 3s (default > value) for all DNs to heartbeat, triggering registration, so NN can go > active. Tests that repeatedly restart the NN are severely affected. > Example for varying heartbeat intervals for {{TestFSImageWithAcl}}: > * 3s = ~70s -- (disgusting, why I investigated) > * 1s = ~27s > * 500ms = ~17s -- (had to hack DNConf for millisecond precision) > That a 4x improvement in runtime. > 17s is still excessively long for what the test does. Further areas to > explore when running tests: > * Reduce numerous sleeps intervals in DN's {{BPServiceActor}}. > * Ensure heartbeats and initial BR are sent immediately upon (re)registration. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org