[
https://issues.apache.org/jira/browse/HIVE-25958?focusedWorklogId=730206&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-730206
]
ASF GitHub Bot logged work on HIVE-25958:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 21/Feb/22 04:12
Start Date: 21/Feb/22 04:12
Worklog Time Spent: 10m
Work Description: ayushtkn commented on pull request #3037:
URL: https://github.com/apache/hive/pull/3037#issuecomment-1046455595
kept this enabled by default as of now, the test passes with this on.
can be disabled by default or only enabled if underlying FileSystem is s3a
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
Issue Time Tracking
-------------------
Worklog Id: (was: 730206)
Remaining Estimate: 0h
Time Spent: 10m
> Optimise BasicStatsNoJobTask
> ----------------------------
>
> Key: HIVE-25958
> URL: https://issues.apache.org/jira/browse/HIVE-25958
> Project: Hive
> Issue Type: Improvement
> Reporter: Rajesh Balamohan
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When there are large number of files are present, it takes lot of time for
> analyzing table (for stats) takes lot longer time especially on cloud
> platforms. Each file is read in sequential fashion for computing stats, which
> can be optimized.
>
> {code:java}
> at org.apache.hadoop.fs.s3a.Invoker.retry(Invoker.java:293)
> at org.apache.hadoop.fs.s3a.S3AInputStream.read(S3AInputStream.java:506)
> - locked <0x0000000642995b10> (a org.apache.hadoop.fs.s3a.S3AInputStream)
> at
> org.apache.hadoop.fs.s3a.S3AInputStream.readFully(S3AInputStream.java:775)
> - locked <0x0000000642995b10> (a org.apache.hadoop.fs.s3a.S3AInputStream)
> at
> org.apache.hadoop.fs.FSDataInputStream.readFully(FSDataInputStream.java:116)
> at
> org.apache.orc.impl.RecordReaderUtils.readDiskRanges(RecordReaderUtils.java:574)
> at
> org.apache.orc.impl.RecordReaderUtils$DefaultDataReader.readFileData(RecordReaderUtils.java:282)
> at
> org.apache.orc.impl.RecordReaderImpl.readAllDataStreams(RecordReaderImpl.java:1172)
> at
> org.apache.orc.impl.RecordReaderImpl.readStripe(RecordReaderImpl.java:1128)
> at
> org.apache.orc.impl.RecordReaderImpl.advanceStripe(RecordReaderImpl.java:1281)
> at
> org.apache.orc.impl.RecordReaderImpl.advanceToNextRow(RecordReaderImpl.java:1316)
> at org.apache.orc.impl.RecordReaderImpl.<init>(RecordReaderImpl.java:302)
> at
> org.apache.hadoop.hive.ql.io.orc.RecordReaderImpl.<init>(RecordReaderImpl.java:68)
> at
> org.apache.hadoop.hive.ql.io.orc.ReaderImpl.rowsOptions(ReaderImpl.java:83)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.createReaderFromFile(OrcInputFormat.java:367)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat$OrcRecordReader.<init>(OrcInputFormat.java:276)
> at
> org.apache.hadoop.hive.ql.io.orc.OrcInputFormat.getRecordReader(OrcInputFormat.java:2027)
> at
> org.apache.hadoop.hive.ql.stats.BasicStatsNoJobTask$FooterStatCollector.run(BasicStatsNoJobTask.java:235)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> "HiveServer2-Background-Pool: Thread-5161" #5161 prio=5 os_prio=0
> tid=0x00007f271217d800 nid=0x21b7 waiting on condition [0x00007f26fce88000]
> java.lang.Thread.State: TIMED_WAITING (parking)
> at sun.misc.Unsafe.park(Native Method)
> - parking to wait for <0x00000006bee1b3a0> (a
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
> at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
> at
> java.util.concurrent.ThreadPoolExecutor.awaitTermination(ThreadPoolExecutor.java:1475)
> at
> org.apache.hadoop.hive.ql.stats.BasicStatsNoJobTask.shutdownAndAwaitTermination(BasicStatsNoJobTask.java:426)
> at
> org.apache.hadoop.hive.ql.stats.BasicStatsNoJobTask.aggregateStats(BasicStatsNoJobTask.java:338)
> at
> org.apache.hadoop.hive.ql.stats.BasicStatsNoJobTask.process(BasicStatsNoJobTask.java:121)
> at org.apache.hadoop.hive.ql.exec.StatsTask.execute(StatsTask.java:107)
> at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:213)
> at
> org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:105)
> at org.apache.hadoop.hive.ql.Executor.launchTask(Executor.java:361)
> at org.apache.hadoop.hive.ql.Executor.launchTasks(Executor.java:334)
> at org.apache.hadoop.hive.ql.Executor.runTasks(Executor.java:250) {code}
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
