Raintung Li created SOLR-4099: --------------------------------- Summary: Suspect zookeeper client thread doesn't call back the watcher, that occur the overseer collection can't work normal. Key: SOLR-4099 URL: https://issues.apache.org/jira/browse/SOLR-4099 Project: Solr Issue Type: Bug Components: SolrCloud Affects Versions: 4.0, 4.0-BETA, 4.0-ALPHA Environment: Zookeeper version: 3.2
Reporter: Raintung Li In test environment, our zookeeper version is old that our requirement version. Not use solr default 3.3.6 version. The overseer collection processor stop work. Trace the dump, the overseer wait for LatchChildWatcher.await. Check the zookeeper /overseer/collection-queue-work, block a lot of operation for collection. Check the logic, suspect the zookeeper client doesn't call back the watchevent that register the path "/overseer/collection-queue-work", unlucky the log level is debug. This case doesn't happen often, very little. But if it happen, it is fatal, we have to stop the leader server. We suggest the compensate solution, that doesn't await until notify. Only wait some time that maybe it is ten minutes or a half of hour or other value to recheck the queue again. Of cause if get the notify, that can direct work normal. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org