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Posted to notifications@accumulo.apache.org by "Glenn Primmer (JIRA)" <ji...@apache.org> on 2014/02/03 21:01:14 UTC
[jira] [Created] (ACCUMULO-2313) Accumulo Tablet Server failed to
retain lock with ZooKeeper
Glenn Primmer created ACCUMULO-2313:
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Summary: Accumulo Tablet Server failed to retain lock with ZooKeeper
Key: ACCUMULO-2313
URL: https://issues.apache.org/jira/browse/ACCUMULO-2313
Project: Accumulo
Issue Type: Bug
Components: tserver
Affects Versions: 1.5.0
Environment: 40 Node Cluster
Each Node: 64GB RAM, 8 Cores (2.4 GHz) , 4x1.5TB drives, 10 Gb/s Ethernet
Reporter: Glenn Primmer
On 3 Nodes the Accumulo Tservers did not communicate with ZooKeeper within the timeout period and therefor lost their locks. Looking at the resource utilization (Nagios) it did not appear that the node CPU/resource utilization was a factor as to why Accumulo Tservers did not communicate with ZooKeeper within the timeout period.
Question is, is there potential thread contention for the thread responsible for retaining the ZooKeeper lock in the Accumulo Tservers?
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