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https://issues.apache.org/jira/browse/HBASE-17964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15985819#comment-15985819
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Andrew Purtell commented on HBASE-17964:
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+1
> ensure hbase-metrics-api is included in mapreduce job classpaths
> ----------------------------------------------------------------
>
> Key: HBASE-17964
> URL: https://issues.apache.org/jira/browse/HBASE-17964
> Project: HBase
> Issue Type: Bug
> Components: mapreduce
> Affects Versions: 2.0.0
> Reporter: Sean Busbey
> Assignee: Sean Busbey
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments: HBASE-17964.0.patch
>
>
> HBASE-9774 moved metrics stuff into a couple of additional modules.
> currently, MR against snapshots fail because it's unable to find the
> metrics-api classes it needs for ClientSideRegionScanner.
> {code}
> Error: java.io.IOException: java.lang.NoClassDefFoundError:
> org/apache/hadoop/hbase/metrics/Snapshot
> at
> org.apache.hadoop.hbase.regionserver.HRegion.initializeStores(HRegion.java:1027)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.initializeRegionInternals(HRegion.java:883)
> at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:858)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6694)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6651)
> at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6622)
> at
> org.apache.hadoop.hbase.client.ClientSideRegionScanner.<init>(ClientSideRegionScanner.java:59)
> at
> org.apache.hadoop.hbase.mapreduce.TableSnapshotInputFormatImpl$RecordReader.initialize(TableSnapshotInputFormatImpl.java:211)
> at
> org.apache.hadoop.hbase.mapreduce.TableSnapshotInputFormat$TableSnapshotRegionRecordReader.initialize(TableSnapshotInputFormat.java:140)
> at
> org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:548)
> {code}
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