[jira] [Commented] (HIVE-4423) Improve RCFile::sync(long) 10x

2013-08-13 Thread Edward Capriolo (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-4423?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13739224#comment-13739224
 ] 

Edward Capriolo commented on HIVE-4423:
---

Maybe we can add a test when we fix.

 Improve RCFile::sync(long) 10x
 --

 Key: HIVE-4423
 URL: https://issues.apache.org/jira/browse/HIVE-4423
 Project: Hive
  Issue Type: Improvement
 Environment: Ubuntu LXC (1 SSD, 1 disk, 32 gigs of RAM)
Reporter: Gopal V
Assignee: Gopal V
Priority: Minor
  Labels: optimization
 Fix For: 0.12.0

 Attachments: HIVE-4423.patch


 RCFile::sync(long) takes approx ~1 second everytime it gets called because of 
 the inner loops in the function.
 From what was observed with HDFS-4710, single byte reads are an order of 
 magnitude slower than larger 512 byte buffer reads. 
 Even when disk I/O is buffered to this size, there is overhead due to the 
 synchronized read() methods in BlockReaderLocal  RemoteBlockReader classes.
 Removing the readByte() calls in RCFile.sync(long) with a readFully(512 byte) 
 call will speed this function 10x.

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[jira] [Commented] (HIVE-1511) Hive plan serialization is slow

2013-08-13 Thread Ashutosh Chauhan (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-1511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13739226#comment-13739226
 ] 

Ashutosh Chauhan commented on HIVE-1511:


Currently, auto_sortmerge_join_*.q, 
bucketcontext_*.q,bucketsortoptimize_insert_*.q,smb_mapjoin_*.q are the 
testcases  which are failing with current patch.

 Hive plan serialization is slow
 ---

 Key: HIVE-1511
 URL: https://issues.apache.org/jira/browse/HIVE-1511
 Project: Hive
  Issue Type: Improvement
Affects Versions: 0.7.0
Reporter: Ning Zhang
Assignee: Mohammad Kamrul Islam
 Attachments: HIVE-1511.patch, HIVE-1511-wip2.patch, 
 HIVE-1511-wip3.patch, HIVE-1511-wip.patch


 As reported by Edward Capriolo:
 For reference I did this as a test case
 SELECT * FROM src where
 key=0 OR key=0 OR key=0 OR  key=0 OR key=0 OR key=0 OR key=0 OR key=0
 OR key=0 OR key=0 OR key=0 OR
 key=0 OR key=0 OR key=0 OR  key=0 OR key=0 OR key=0 OR key=0 OR key=0
 OR key=0 OR key=0 OR key=0 OR
 ...(100 more of these)
 No OOM but I gave up after the test case did not go anywhere for about
 2 minutes.

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[jira] [Commented] (HIVE-5077) Provide an option to run local task in process

2013-08-13 Thread Hive QA (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-5077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13739233#comment-13739233
 ] 

Hive QA commented on HIVE-5077:
---



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12597791/HIVE-5077.patch

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 2856 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestMinimrCliDriver.testCliDriver_infer_bucket_sort_reducers_power_two
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/425/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/425/console

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests failed with: TestsFailedException: 1 tests failed
{noformat}

This message is automatically generated.

 Provide an option to run local task in process
 --

 Key: HIVE-5077
 URL: https://issues.apache.org/jira/browse/HIVE-5077
 Project: Hive
  Issue Type: Bug
Reporter: Ashutosh Chauhan
Assignee: Ashutosh Chauhan
 Attachments: HIVE-5077.patch




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[jira] [Updated] (HIVE-5087) Rename npath UDF

2013-08-13 Thread Edward Capriolo (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-5087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Edward Capriolo updated HIVE-5087:
--

Attachment: HIVE-5087.patch.txt

Not complete, stupid q tests.

 Rename npath UDF
 

 Key: HIVE-5087
 URL: https://issues.apache.org/jira/browse/HIVE-5087
 Project: Hive
  Issue Type: Bug
Reporter: Edward Capriolo
Assignee: Edward Capriolo
 Attachments: HIVE-5087.patch.txt




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