[ https://issues.apache.org/jira/browse/HDDS-661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hanisha Koneru updated HDDS-661: -------------------------------- Attachment: HDDS-661.001.patch > When a volume fails in datanode, VersionEndpointTask#call ends up in dead > lock. > ------------------------------------------------------------------------------- > > Key: HDDS-661 > URL: https://issues.apache.org/jira/browse/HDDS-661 > Project: Hadoop Distributed Data Store > Issue Type: Bug > Components: Ozone Datanode > Reporter: Nanda kumar > Assignee: Hanisha Koneru > Priority: Major > Attachments: HDDS-661.001.patch > > > When a volume fails in datanode, the call to {{VersionEndpointTask#call}} > ends up in dead-lock. > {code:java} > org.apache.hadoop.ozone.container.common.states.endpoint.VersionEndpointTask.call(VersionEndpointTask.java:78) > --> we acquire VolumeSet read lock here. > org.apache.hadoop.ozone.container.common.states.endpoint.VersionEndpointTask.call(VersionEndpointTask.java:93) > > org.apache.hadoop.ozone.container.common.volume.VolumeSet.failVolume(VolumeSet.java:276) > > org.apache.hadoop.ozone.container.common.volume.VolumeSet.writeLock(VolumeSet.java:210) > ---> we wait for VolumeSet write lock. > {code} > Since this thread already holds the read lock, it cannot get the write lock > and ends up in dead-lock. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org