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Posted to common-dev@hadoop.apache.org by "zhaoyunjiong (JIRA)" <ji...@apache.org> on 2014/10/27 08:29:33 UTC

[jira] [Created] (HADOOP-11234) Potential thread unsafe in NetgroupCache

zhaoyunjiong created HADOOP-11234:
-------------------------------------

             Summary: Potential thread unsafe in NetgroupCache
                 Key: HADOOP-11234
                 URL: https://issues.apache.org/jira/browse/HADOOP-11234
             Project: Hadoop Common
          Issue Type: Bug
          Components: security
            Reporter: zhaoyunjiong
            Assignee: zhaoyunjiong
            Priority: Minor


In function getNetgroups:
{code}
    if(netgroupToUsersMapUpdated) {
      netgroupToUsersMapUpdated = false; // at the beginning to avoid race
{code}
However, netgroupToUsersMapUpdated was not thread safe:
{code}
private static boolean netgroupToUsersMapUpdated = true;
{code}



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