[AMBARI-24250] Create Checkpoint page stuck while Enabling HA on Namenode

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.7.0
• Component/s: ambari-agent
• Labels: pull-request-available
• Assignee: Robert Levas
• Reporter: Srikanth Janardhan
• Created: 05/Jul/18 15:15
• Updated: 10/Jul/18 04:53
• Resolved: 10/Jul/18 04:53

Description

Ambari UI stuck at Manual Steps Required: Create Checkpoint on NameNode page while Enabling HA after performing the manual steps.

[root@ctr-e138-1518143905142-378399-01-000004 ~]# sudo su cstm-hdfs -l -c 'hdfs dfsadmin -safemode enter'
######## Hortonworks #############
This is MOTD message, added for testing in qe infra
Safe mode is ON
[root@ctr-e138-1518143905142-378399-01-000004 ~]# sudo su cstm-hdfs -l -c 'hdfs dfsadmin -saveNamespace'
######## Hortonworks #############
This is MOTD message, added for testing in qe infra
Save namespace successful

The stat result of file /etc/security/keytabs/ambari.server.keytab, looks like the final change in the file occured at 2018-07-04 05:53:52.

[root@ctr-e138-1518143905142-395357-01-000002 ~]# stat /etc/security/keytabs/ambari.server.keytab
  File: ‘/etc/security/keytabs/ambari.server.keytab’
  Size: 333       	Blocks: 8          IO Block: 4096   regular file
Device: fd12h/64786d	Inode: 16390172    Links: 1
Access: (0400/-r--------)  Uid: ( 1803/agentslava)   Gid: ( 1803/agentslava)
Access: 2018-07-04 03:01:39.282093801 +0000
Modify: 2018-07-04 03:01:39.282093801 +0000
Change: 2018-07-04 05:53:52.333709142 +0000
 Birth: -

From the ambari server logs at the same time stamp:

2018-07-04 05:53:52,054  INFO [Server Action Executor Worker 586] KerberosServerAction:411 - Processing identities...
2018-07-04 05:53:52,322  INFO [Server Action Executor Worker 586] FinalizeKerberosServerAction:111 - Updated the owner of the keytab file at /etc/security/keytabs/ambari.server.keytab to null
2018-07-04 05:53:52,323  INFO [Server Action Executor Worker 586] FinalizeKerberosServerAction:125 - Updated the group of the keytab file at /etc/security/keytabs/ambari.server.keytab to null
2018-07-04 05:53:52,337  INFO [Server Action Executor Worker 586] FinalizeKerberosServerAction:142 - Updated the access mode of the keytab file at /etc/security/keytabs/ambari.server.keytab to owner:'r' and group:'null'
2018-07-04 05:53:52,352  INFO [Server Action Executor Worker 586] FinalizeKerberosServerAction:111 - Updated the owner of the keytab file at /etc/security/keytabs/ams-monitor.keytab to cstm-ams
2018-07-04 05:53:52,371  INFO [Server Action Executor Worker 586] FinalizeKerberosServerAction:125 - Updated the group of the keytab file at /etc/security/keytabs/ams-monitor.keytab to hadoop
2018-07-04 05:53:52,387  INFO [Server Action Executor Worker 586] FinalizeKerberosServerAction:142 - Updated the access mode of the keytab file at /etc/security/keytabs/ams-monitor.keytab to owner:'r' and group:''

Issue Links

• links to: GitHub Pull Request #1687
• links to: GitHub Pull Request #1694