[ https://issues.apache.org/jira/browse/HDFS-17108?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated HDFS-17108: ---------------------------------- Labels: pull-request-available (was: ) > Null Pointer Exception when running TestDecommissionWithBackoffMonitor > ---------------------------------------------------------------------- > > Key: HDFS-17108 > URL: https://issues.apache.org/jira/browse/HDFS-17108 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: ConfX > Priority: Critical > Labels: pull-request-available > Attachments: reproduce.sh > > > h2. What happened > After setting {{{}dfs.client.read.shortcircuit=true{}}}, running test > {{org.apache.hadoop.hdfs.TestDecommissionWithBackoffMonitor#testNodeUsageWhileDecommissioining}} > results in a {{{}NullPointerException{}}}. > h2. Where's the bug > In the test class {{{}org.apache.hadoop.hdfs.TestDecommission{}}}: > {noformat} > } finally { > cleanupFile(fileSys, file1); > }{noformat} > However, the class does not check if the fileSys is null, causing the NPE. > h2. How to reproduce > # Set {{dfs.client.read.shortcircuit=true}} > # Run > {{org.apache.hadoop.hdfs.TestDecommissionWithBackoffMonitor#testNodeUsageWhileDecommissioining}} > and the following exception should be observed: > {noformat} > java.lang.NullPointerException > at > org.apache.hadoop.hdfs.AdminStatesBaseTest.cleanupFile(AdminStatesBaseTest.java:459) > at > org.apache.hadoop.hdfs.TestDecommission.nodeUsageVerification(TestDecommission.java:1575) > at > org.apache.hadoop.hdfs.TestDecommission.testNodeUsageWhileDecommissioining(TestDecommission.java:1510){noformat} > For an easy reproduction, run the reproduce.sh in the attachment. > We are happy to provide a patch if this issue is confirmed. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org