[AMBARI-14437] Unable To Restart HCat Client When Not Colocated With WebHCat Server

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.2.1
• Component/s: ambari-server
• Assignee: Jonathan Hurley
• Reporter: Jonathan Hurley
• Created: 18/Dec/15 19:35
• Updated: 22/Dec/15 16:26
• Resolved: 22/Dec/15 16:26

Description

Errors are encountered while restart Hive HCat client when it is not located on a host which also has WebHCat daemon.

This is good - the pointers have moved for 2.3.4

root@os-d7-dkezlu-ambari-hv-r-upg-7-re1-5:/usr/hdp/current/hive-webhcat/etc# ls -l /usr/hdp/2.3.4.0-3485/hive-hcatalog/etc
total 4
lrwxrwxrwx 1 root root   33 Dec 18 14:45 hcatalog -> /etc/hive-hcatalog/2.3.4.0-3485/0
drwxr-xr-x 2 root root 4096 Dec 18 14:45 init.d
lrwxrwxrwx 1 root root   32 Dec 18 14:45 webhcat -> /etc/hive-webhcat/2.3.4.0-3485/0

This is bad - current for hcatalog is still 2.3.2, which has the symlink issue

root@os-d7-dkezlu-ambari-hv-r-upg-7-re1-5:/usr/hdp/current/hive-webhcat/etc# ls -l /usr/hdp/current | grep hive
lrwxrwxrwx 1 root root 26 Dec 18 15:50 hive-client -> /usr/hdp/2.3.4.0-3485/hive
lrwxrwxrwx 1 root root 26 Dec 18 12:59 hive-metastore -> /usr/hdp/2.3.2.0-2826/hive
lrwxrwxrwx 1 root root 26 Dec 18 12:59 hive-server2 -> /usr/hdp/2.3.2.0-2826/hive
lrwxrwxrwx 1 root root 35 Dec 18 12:59 hive-webhcat -> /usr/hdp/2.3.2.0-2826/hive-hcatalog

root@os-d7-dkezlu-ambari-hv-r-upg-7-re1-5:/usr/hdp/current/hive-webhcat/etc# ls -l /usr/hdp2.3.2.0-2826/hive-hcatalog/etc
lrwxrwxrwx 1 root root 23 Dec 18 20:35 hcatalog -> /etc/hive-hcatalog/conf
lrwxrwxrwx 1 root root 22 Dec 18 20:35 webhcat -> /etc/hive-webhcat/conf

The problem is that hcat_client.py must write out configs to /usr/hdp/current/hive-webhcat/etc/hcatalog but hcat_client.py doesn't hdp-select anything.

So that the "current" pointers are never changed. hcat_client.py should probably hdp-select hive-webhcat since there is no hcat-client in hdp-select.