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https://issues.apache.org/jira/browse/HBASE-10413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13898556#comment-13898556
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Hudson commented on HBASE-10413:
--------------------------------
FAILURE: Integrated in HBase-TRUNK-on-Hadoop-1.1 #87 (See
[https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-1.1/87/])
HBASE-10413 addendum makes split length readable (tedyu: rev 1567232)
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/TableInputFormatBase.java
HBASE-10413 Tablesplit.getLength returns 0 (Lukas Nalezenec) (tedyu: rev
1566768)
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/MultiTableInputFormatBase.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/TableInputFormatBase.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/TableSplit.java
*
/hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/util/RegionSizeCalculator.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestTableSplit.java
*
/hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestRegionSizeCalculator.java
> Tablesplit.getLength returns 0
> ------------------------------
>
> Key: HBASE-10413
> URL: https://issues.apache.org/jira/browse/HBASE-10413
> Project: HBase
> Issue Type: Bug
> Components: Client, mapreduce
> Affects Versions: 0.96.1.1
> Reporter: Lukas Nalezenec
> Assignee: Lukas Nalezenec
> Fix For: 0.98.1, 0.99.0
>
> Attachments: 10413-7.patch, 10413.addendum, HBASE-10413-2.patch,
> HBASE-10413-3.patch, HBASE-10413-4.patch, HBASE-10413-5.patch,
> HBASE-10413-6.patch, HBASE-10413.patch
>
>
> InputSplits should be sorted by length but TableSplit does not contain real
> getLength implementation:
> @Override
> public long getLength() {
> // Not clear how to obtain this... seems to be used only for sorting
> splits
> return 0;
> }
> This is causing us problem with scheduling - we have got jobs that are
> supposed to finish in limited time but they get often stuck in last mapper
> working on large region.
> Can we implement this method ?
> What is the best way ?
> We were thinking about estimating size by size of files on HDFS.
> We would like to get Scanner from TableSplit, use startRow, stopRow and
> column families to get corresponding region than computing size of HDFS for
> given region and column family.
> Update:
> This ticket was about production issue - I talked with guy who worked on this
> and he said our production issue was probably not directly caused by
> getLength() returning 0.
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