Josh Elser created HBASE-18679:
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Summary: YARN may null Counters object and cause an NPE in ITBLL
Key: HBASE-18679
URL: https://issues.apache.org/jira/browse/HBASE-18679
Project: HBase
Issue Type: Bug
Components: integration tests
Reporter: Josh Elser
Assignee: Josh Elser
Priority: Trivial
Fix For: 2.0.0, 1.4.0, 1.3.2, 1.5.0, 1.2.7, 1.1.13
YARN has a configuration limit to the number of counters that a job can create
(to avoid some bad job from DDOS'ing the service).
When running ITBLL, we ran into this limit due to the default configuration
rather low at the time. When YARN notices that the counter limit has been
exceeded, it nulls out the Counters object obtained by the Job.
Presently in ITBLL, we have a few places where we (reasonably ;)) assume that
the Counters object would be non-null. Can easily fix this with a null-check.
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