[AMBARI-23559] Journalnode restart step is required when edits dir is changed

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.7.0
• Component/s: ambari-web
• Labels: pull-request-available
• Assignee: Aleksandr Kovalenko
• Reporter: Aleksandr Kovalenko
• Created: 12/Apr/18 13:21
• Updated: 30/May/18 15:27
• Resolved: 30/May/18 15:27

Description

Journal node does not create the edits directory in the right place because it is not restarted and hence does not load the new configurations resulting in the following error:

2018-04-11 23:19:39,835 FATAL namenode.FSEditLog (JournalSet.java:mapJournalsAndReportErrors(390)) - Error: recoverUnfinalizedSegments failed for required journal (JournalAndSt
ream(mgr=QJM to [10.240.0.23:8485, 10.240.0.32:8485, 10.240.0.95:8485], stream=null))
org.apache.hadoop.hdfs.qjournal.client.QuorumException: Got too many exceptions to achieve quorum size 2/3. 3 exceptions thrown:
10.240.0.23:8485: Journal Storage Directory root= /hadoop2/hdfs/journal/ns2; location= null not formatted
        at org.apache.hadoop.hdfs.qjournal.server.Journal.checkFormatted(Journal.java:500)
        at org.apache.hadoop.hdfs.qjournal.server.Journal.getLastPromisedEpoch(Journal.java:262)

Need to add Restart All Journal nodes step right before the Format Namenode step in the wizard.

Issue Links

• links to: GitHub Pull Request #983