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Posted to hdfs-dev@hadoop.apache.org by "Franklinsam Paul (Jira)" <ji...@apache.org> on 2023/03/16 14:33:00 UTC
[jira] [Created] (HDFS-16955) Need to timeout grouplookup calls if delayed long
Franklinsam Paul created HDFS-16955:
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Summary: Need to timeout grouplookup calls if delayed long
Key: HDFS-16955
URL: https://issues.apache.org/jira/browse/HDFS-16955
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs
Reporter: Franklinsam Paul
Similar to "hadoop.security.group.mapping.ldap.directory.search.timeout" we need timeout to be set for group lookup call in other " group mapping service providers" such as *org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback and* *org.apache.hadoop.security.ShellBasedUnixGroupsMapping.*
Currently the group lookup delay hold locks for long time and crashes the Namenode. This is to timeout the call and send the user the failure of operation due to group lookup is delayed.
{code:java}
2023-03-01 18:49:25,367 WARN org.apache.hadoop.security.Groups: Potential performance problem: getGroups(user=XXXXXXXXXX) took 232236 milliseconds.
2023-03-01 18:49:25,368 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of suppressed read-lock reports: 21
Longest read-lock held at 1970-01-11 13:29:34,218+0100 for 232236ms via java.lang.Thread.getStackTrace(Thread.java:1564) {code}
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