[HADOOP-11234] Potential thread unsafe in NetgroupCache

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Component/s: security
• Assignee: yunjiong zhao
• Reporter: yunjiong zhao
• Created: 27/Oct/14 07:28
• Updated: 15/Dec/14 01:19
• Resolved: 15/Dec/14 01:19

Description

In function getNetgroups:

    if(netgroupToUsersMapUpdated) {
      netgroupToUsersMapUpdated = false; // at the beginning to avoid race

However, netgroupToUsersMapUpdated was not thread safe:

private static boolean netgroupToUsersMapUpdated = true;

Issue Links

• is related to: HADOOP-10852 NetgroupCache is not thread-safe