[ https://issues.apache.org/jira/browse/HDFS-16036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Kyle Purtell updated HDFS-16036: --------------------------------------- Summary: IPC client is stuck, waiting for connections map to be empty (was: Datanode ipc client is stuck, waiting for connections map to be empty) > IPC client is stuck, waiting for connections map to be empty > ------------------------------------------------------------ > > Key: HDFS-16036 > URL: https://issues.apache.org/jira/browse/HDFS-16036 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.10.1 > Reporter: Kiran Kumar Maturi > Priority: Major > > In our cluster we have observed when close command is issued to Datanode, It > is stuck indefinitely waiting for connections map to be empty for some reason > the map is not empty even after the connections have closed. [code > link|https://github.com/apache/hadoop/blob/branch-2.10.1/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Client.java#L1360]. > > Instead of infinite wait a timed wait (based on retries or timeout) would > enable to shutdown the datanode in timely manner. > {code:java} > for (Connection conn : connections.values()) { > conn.interrupt(); > conn.interruptConnectingThread(); > } > > // wait until all connections are closed > while (!connections.isEmpty()) { > try { > Thread.sleep(STOP_SLEEP_TIME_MS); > } catch (InterruptedException e) { > } > } > {code} -- 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