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https://issues.apache.org/jira/browse/HIVE-21686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16836000#comment-16836000
]
Hive QA commented on HIVE-21686:
--------------------------------
Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12968239/Cache_hitrate_improvement.csv
{color:red}ERROR:{color} -1 due to build exiting with an error
Test results:
https://builds.apache.org/job/PreCommit-HIVE-Build/17170/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/17170/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-17170/
Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Tests exited with: NonZeroExitCodeException
Command 'bash /data/hiveptest/working/scratch/source-prep.sh' failed with exit
status 1 and output '+ date '+%Y-%m-%d %T.%3N'
2019-05-09 01:00:24.690
+ [[ -n /usr/lib/jvm/java-8-openjdk-amd64 ]]
+ export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
+ JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
+ export
PATH=/usr/lib/jvm/java-8-openjdk-amd64/bin/:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
+
PATH=/usr/lib/jvm/java-8-openjdk-amd64/bin/:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
+ export 'ANT_OPTS=-Xmx1g -XX:MaxPermSize=256m '
+ ANT_OPTS='-Xmx1g -XX:MaxPermSize=256m '
+ export 'MAVEN_OPTS=-Xmx1g '
+ MAVEN_OPTS='-Xmx1g '
+ cd /data/hiveptest/working/
+ tee /data/hiveptest/logs/PreCommit-HIVE-Build-17170/source-prep.txt
+ [[ false == \t\r\u\e ]]
+ mkdir -p maven ivy
+ [[ git = \s\v\n ]]
+ [[ git = \g\i\t ]]
+ [[ -z master ]]
+ [[ -d apache-github-source-source ]]
+ [[ ! -d apache-github-source-source/.git ]]
+ [[ ! -d apache-github-source-source ]]
+ date '+%Y-%m-%d %T.%3N'
2019-05-09 01:00:24.711
+ cd apache-github-source-source
+ git fetch origin
+ git reset --hard HEAD
HEAD is now at 86a7eb7 HIVE-13554: Support for non-correlated Quantified
Comparison Predicates (Vineet Garg, reviewed by Jesus Camacho Rodriguez)
+ git clean -f -d
Removing standalone-metastore/metastore-server/src/gen/
+ git checkout master
Already on 'master'
Your branch is up-to-date with 'origin/master'.
+ git reset --hard origin/master
HEAD is now at 86a7eb7 HIVE-13554: Support for non-correlated Quantified
Comparison Predicates (Vineet Garg, reviewed by Jesus Camacho Rodriguez)
+ git merge --ff-only origin/master
Already up-to-date.
+ date '+%Y-%m-%d %T.%3N'
2019-05-09 01:00:34.750
+ rm -rf ../yetus_PreCommit-HIVE-Build-17170
+ mkdir ../yetus_PreCommit-HIVE-Build-17170
+ git gc
+ cp -R . ../yetus_PreCommit-HIVE-Build-17170
+ mkdir /data/hiveptest/logs/PreCommit-HIVE-Build-17170/yetus
+ patchCommandPath=/data/hiveptest/working/scratch/smart-apply-patch.sh
+ patchFilePath=/data/hiveptest/working/scratch/build.patch
+ [[ -f /data/hiveptest/working/scratch/build.patch ]]
+ chmod +x /data/hiveptest/working/scratch/smart-apply-patch.sh
+ /data/hiveptest/working/scratch/smart-apply-patch.sh
/data/hiveptest/working/scratch/build.patch
fatal: unrecognized input
fatal: unrecognized input
fatal: unrecognized input
The patch does not appear to apply with p0, p1, or p2
+ result=1
+ '[' 1 -ne 0 ']'
+ rm -rf yetus_PreCommit-HIVE-Build-17170
+ exit 1
'
{noformat}
This message is automatically generated.
ATTACHMENT ID: 12968239 - PreCommit-HIVE-Build
> Brute Force eviction can lead to a random uncontrolled eviction pattern.
> ------------------------------------------------------------------------
>
> Key: HIVE-21686
> URL: https://issues.apache.org/jira/browse/HIVE-21686
> Project: Hive
> Issue Type: Bug
> Reporter: slim bouguerra
> Assignee: slim bouguerra
> Priority: Major
> Attachments: Cache_hitrate_improvement.csv, HIVE-21686.2.patch,
> HIVE-21686.patch
>
>
> Current logic used by brute force eviction can lead to a perpetual random
> eviction pattern.
> For instance if the cache build a small pocket of free memory where the total
> size is greater than incoming allocation request, the allocator will randomly
> evict block that fits a particular size.
> This can happen over and over therefore all the eviction will be random.
> In Addition this random eviction will lead a leak in the linked list
> maintained by the policy since it does not know anymore about what is evicted
> and what not.
> The improvement of this patch is very substantial to TPC-DS benchmark. I
> have tested it with 10TB scale 9 llap nodes and 32GB cache size per node.
> The patch has showed very noticeable difference in the Hit rate for raw
> number [^Cache_hitrate_improvement.csv]
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