[IMPALA-3883] Impalad services did not start correctly and exiting due to failed to (re-)register Resource Broker with Llama

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: Impala 2.5.0
• Component/s: Backend
• Labels: impala llama
• Environment: Red Hat Enterprise Linux Server release 6.5
• Target Version: Product Backlog
• Assignee: Unassigned
• Reporter: Davy Xu
• Created: 20/Jul/16 03:30
• Updated: 13/Jun/17 05:36
• Resolved: 13/Jun/17 05:36

Description

I have installed Impala with Llama HA in my environment
. When I sequentially start Llama HA and Impala,Llama HA start successfully
,but Impalad services did not start correctly and exiting due to failed to (re-)register Resource Broker with Llama.
After checking log files of Llama and Impalad service, I find the reason is that llama_registration_timeout_secs of Impalad, which means maximum number of seconds that Impala will attempt to (re-)register with Llama before aborting the triggering action with an error, 30 seconds is less than Llama election time-consuming which is more than one minute. So Impalad can't register with any Llama and exit before Llama become active.
We should enlarge llama_registration_timeout_secs of Impalad to 300 seconds or other value big enough to insure Impalad service starting correctly.