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ASF GitHub Bot commented on DRILL-3171: --------------------------------------- GitHub user hnfgns opened a pull request: https://github.com/apache/drill/pull/260 DRILL-3171: handle concurrent Zookeeper node creation gracefully Make ZK node creation/updates logic optimistic. Refactor ZkAbstractStore to eliminate redundant code around node creation logic. Enhanced documentation. You can merge this pull request into a Git repository by running: $ git pull https://github.com/hnfgns/incubator-drill DRILL-3171 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/drill/pull/260.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #260 ---- commit cf91dc0b123378d94811da8b6c3171f3fd8d714d Author: Hanifi Gunes <hanifigu...@gmail.com> Date: 2015-11-04T00:24:48Z DRILL-3171: handle concurrent Zookeeper node creation gracefully ---- > Storage Plugins : Two processes tried to update the storage plugin at the > same time > ----------------------------------------------------------------------------------- > > Key: DRILL-3171 > URL: https://issues.apache.org/jira/browse/DRILL-3171 > Project: Apache Drill > Issue Type: Bug > Components: Storage - Information Schema > Affects Versions: 1.0.0 > Reporter: Rahul Challapalli > Assignee: Hanifi Gunes > Labels: test > Fix For: Future > > > Commit Id# : bd8ac4fca03ad5043bca27fbc7e0dec5a35ac474 > We have seen this issue happen with the below steps > 1. Clear out the zookeeper > 2. Update the storage plugin using the rest API on one of the node > 3. Submit 10 queries concurrently > With randomized foreman node selection, the node executing the query might > not have the updated storage plugins info. This could be causing the issue. > - Rahul -- This message was sent by Atlassian JIRA (v6.3.4#6332)