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https://issues.apache.org/jira/browse/HIVE-17774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16200878#comment-16200878
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Eugene Koifman commented on HIVE-17774:
---------------------------------------
yes, the fix for this is in CompactorMR
from
{noformat}
if (parsedDeltas.size() == 0 && dir.getOriginalFiles() == null) {
{noformat}
to
{noformat}
if (parsedDeltas.size() == 0 && dir.getOriginalFiles().size() == 0) {
{noformat}
> compaction may start with 0 splits and fail
> -------------------------------------------
>
> Key: HIVE-17774
> URL: https://issues.apache.org/jira/browse/HIVE-17774
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Reporter: Sergey Shelukhin
> Assignee: Eugene Koifman
>
> {noformat}
> 2017-09-26 10:36:01,979 INFO [...]: compactor.CompactorMR
> (CompactorMR.java:launchCompactionJob(295)) -
> Submitting MINOR compaction job ....
> (current delta dirs count=0, obsolete delta dirs count=0.
> TxnIdRange[9223372036854775807,-9223372036854775808]
> ...
> 2017-09-26 10:36:02,350 INFO [...]: mapreduce.JobSubmitter
> (JobSubmitter.java:submitJobInternal(198)) - number of splits:0
> ...
> 2017-09-26 10:36:08,637 INFO [...]: mapreduce.Job
> (Job.java:monitorAndPrintJob(1380)) -
> Job job_1503950256860_15982 failed with state FAILED due to: No of maps and
> reduces are 0 job_1503950256860_15982
> Job commit failed: java.io.FileNotFoundException: File
> .../hello_acid/load_date=2016-03-03/_tmp_a95346ad-bd89-4e66-9b05-e60fdfa11858
> does not exist.
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.listStatusInternal(DistributedFileSystem.java:904)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.access$600(DistributedFileSystem.java:113)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$21.doCall(DistributedFileSystem.java:966)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$21.doCall(DistributedFileSystem.java:962)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:962)
> at
> org.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorOutputCommitter.commitJob(CompactorMR.java:776)
> at
> org.apache.hadoop.mapred.OutputCommitter.commitJob(OutputCommitter.java:291)
> at
> org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler$EventProcessor.handleJobCommit(CommitterEventHandler.java:285)
> at
> org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler$EventProcessor.run(CommitterEventHandler.java:237)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> Looks like the MR job should not have been attempted in this case.
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