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https://issues.apache.org/jira/browse/HIVE-18429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323809#comment-16323809
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Hive QA commented on HIVE-18429:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
0s{color} | {color:blue} Findbugs executables are not available. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
1s{color} | {color:green} The patch does not contain any @author tags. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
43s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
58s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
32s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
51s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
14s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
30s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
1s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
51s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
13s{color} | {color:green} The patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black} 13m 7s{color} |
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Optional Tests | asflicense javac javadoc findbugs checkstyle compile |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian
3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /data/hiveptest/working/yetus/dev-support/hive-personality.sh |
| git revision | master / fd4e222 |
| Default Java | 1.8.0_111 |
| modules | C: ql U: ql |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-8589/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Compaction should handle a case when it produces no output
> ----------------------------------------------------------
>
> Key: HIVE-18429
> URL: https://issues.apache.org/jira/browse/HIVE-18429
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 1.0.0
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
> Attachments: HIVE-18429.01.patch, HIVE-18429.02.patch,
> HIVE-18429.03.patch
>
>
> Suppose we start with empty delta_8_8 and delta_9_9 and compaction runs.
> It will currently produce an MR job with 0 splits and so
> {{CompactorMR.TMP_LOCATION}} never gets created. This causes
> {{CompactorOutputCommitted.commitJob()}} to fail when it tries to do
> {{FileStatus[] contents = fs.listStatus(tmpLocation);}} since tmpLocation
> doesn't exist.
> If compactor fails to produce delta_8_9 here it will fail to do further
> compaction unless new delta with data is created.
> If the number of empty deltas is > than
> HiveConf.ConfVars.COMPACTOR_MAX_NUM_DELTA, compaction will not be able to
> proceed at all.
> It should produce a delta_8_9 in this case even if it's empty.
> The error (in the log of standalone metastore process) would look like this
> {noformat}
> 2017-12-27 17:19:28,850 ERROR CommitterEvent Processor #1
> org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler: Could not
> commit job
> java.io.FileNotFoundException: File
> hdfs://OTCHaaS/apps/hive/warehouse/momi.db/sensor_data/babyid=5911806ebf69640100004257/_tmp_b4c5a3f3-44e5-4d45-86af-5b773bf0fc96
> does not exist.
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.listStatusInternal(DistributedFileSystem.java:923)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.access$600(DistributedFileSystem.java:114)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:985)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:981)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:992)
> at
> rg.apache.hadoop.hive.ql.txn.compactor.CompactorMR$CompactorOutputCommitter.commitJob(CompactorMR.java:785)
> 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}
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