[YARN-3472] Possible leak in DelegationTokenRenewer#allTokens

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 2.7.1, 3.0.0-alpha1
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Rohith Sharma K S
• Reporter: Jian He
• Created: 09/Apr/15 21:49
• Updated: 06/Jan/17 01:33
• Resolved: 13/Apr/15 21:08

Description

When old token is expiring and being removed, it's not removed from the allTokens map, resulting in possible leak.

if (t.token.getKind().equals(new Text("HDFS_DELEGATION_TOKEN"))) {
              iter.remove();
              t.cancelTimer();
              LOG.info("Removed expiring token " + t);
            }

Issue Links

• relates to: YARN-2704 Localization and log-aggregation will fail if hdfs delegation token expired after token-max-life-time