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From "Paul Rogers (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DRILL-5811) Large number of "Failure finding Drillbit" messages when using MFS
Date Fri, 22 Sep 2017 20:06:00 GMT
Paul Rogers created DRILL-5811:

             Summary: Large number of "Failure finding Drillbit" messages when using MFS
                 Key: DRILL-5811
                 URL: https://issues.apache.org/jira/browse/DRILL-5811
             Project: Apache Drill
          Issue Type: Bug
    Affects Versions: 1.12.0
            Reporter: Paul Rogers
            Priority: Minor

A query was run on a single node of a three-node cluster running the MapR file system (MFS.)
When planning the query, zillions of messages of the following form appear in the log:

2017-09-21 16:18:19,401 [263bb743-aaf9-eeb1-2006-32d573e03eba:foreman] INFO  o.a.d.exec.store.dfs.FileSelection
- FileSelection.getStatuses() took 0 ms, numFiles: 1
2017-09-21 16:18:19,408 [263bb743-aaf9-eeb1-2006-32d573e03eba:foreman] DEBUG o.a.d.e.s.schedule.BlockMapBuilder
- Failure finding Drillbit running on host qa-node113.qa.lab.  Skipping affinity to that host.
2017-09-21 16:18:19,409 [263bb743-aaf9-eeb1-2006-32d573e03eba:foreman] DEBUG o.a.d.e.s.schedule.BlockMapBuilder
- FileWork group (maprfs:///drill/testdata/resource-manager/250wide.tbl,0) max bytes 17132639127
2017-09-21 16:18:19,409 [263bb743-aaf9-eeb1-2006-32d573e03eba:foreman] DEBUG o.a.d.e.s.schedule.BlockMapBuilder
- Took 1 ms to set endpoint bytes

Might we put such messages a TRACE level, leaving an aggregate message at DEBUG level, something

123 files to be read using remote reads because of missing Drillbit processes. Enable trace
logging for details.

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