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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