Jason Brown created CASSANDRA-5498:
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Summary: Possible NPE on EACH_QUORUM writes
Key: CASSANDRA-5498
URL: https://issues.apache.org/jira/browse/CASSANDRA-5498
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 1.1.10
Reporter: Jason Brown
Priority: Minor
Fix For: 1.1.12, 1.2.5, 2.0
When upgrading from 1.0 to 1.1, we observed that
DatacenterSyncWriteResponseHandler.assureSufficientLiveNodes() can throw an NPE
if one of the writeEndpoints has a DC that is not listed in the keyspace while
one of the nodes is down. We observed this while running in EC2, and using the
Ec2Snitch. The exception typically was was brief, but a certain segment of
writes (using EACH_QUORUM) failed during that time.
This ticket will address the NPE in DSWRH, while a followup ticket will be
created once we get to the bottom of the incorrect DC being reported from
Ec2Snitch.
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