Jungtaek Lim created STORM-790: ---------------------------------- Summary: Log "task id is null" instead of let worker died (NPE in consumeBatchToCursor) Key: STORM-790 URL: https://issues.apache.org/jira/browse/STORM-790 Project: Apache Storm Issue Type: Bug Affects Versions: 0.9.2-incubating, 0.9.3 Reporter: Jungtaek Lim Assignee: Jungtaek Lim
In STORM-770, some users have observed that worker suddenly died with NPE in consumeBatchToCursor(). Looks like it can occur when "task" in "mk-transfer-fn" is null. It may not be an issue before 0.9.2-incubating, since worker just ignores that tuple. Please see https://issues.apache.org/jira/browse/STORM-770?focusedCommentId=14496199&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14496199. Before finding root cause of this issue, it would be better to let worker not killed by this issue but just log with WARN or ERROR level. It really makes sense cause before 0.9.2 Storm silently ignores tuple, and with Guaranteeing Message Processing, after timed-out tuple will be replayed. (It isn't applied to non-ack) -- This message was sent by Atlassian JIRA (v6.3.4#6332)