[jira] [Commented] (HIVE-2858) Cache remote map reduce job stack traces for additional logging

2012-04-07 Thread Hudson (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-2858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249218#comment-13249218
 ] 

Hudson commented on HIVE-2858:
--

Integrated in Hive-trunk-h0.21 #1360 (See 
[https://builds.apache.org/job/Hive-trunk-h0.21/1360/])
HIVE-2858 Cache remote map reduce job stack traces for additional
logging (Kevin Wilfong via namit) (Revision 1310583)

 Result = ABORTED
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVNview=revrev=1310583
Files : 
* /hive/trunk/build-common.xml
* /hive/trunk/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
* /hive/trunk/conf/hive-default.xml.template
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/Driver.java
* 
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/HadoopJobExecHelper.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/JobDebugger.java
* 
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/errors/TaskLogProcessor.java
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/session/SessionState.java
* 
/hive/trunk/ql/src/test/org/apache/hadoop/hive/ql/hooks/VerifySessionStateStackTracesHook.java
* /hive/trunk/ql/src/test/queries/clientnegative/mapreduce_stack_trace.q
* /hive/trunk/ql/src/test/queries/clientnegative/mapreduce_stack_trace_turnoff.q
* /hive/trunk/ql/src/test/results/clientnegative/mapreduce_stack_trace.q.out
* 
/hive/trunk/ql/src/test/results/clientnegative/mapreduce_stack_trace_turnoff.q.out


 Cache remote map reduce job stack traces for additional logging
 ---

 Key: HIVE-2858
 URL: https://issues.apache.org/jira/browse/HIVE-2858
 Project: Hive
  Issue Type: Improvement
  Components: Logging
Reporter: Kevin Wilfong
Assignee: Kevin Wilfong
 Attachments: HIVE-2858.D2223.1.patch, HIVE-2858.D2223.2.patch


 Currently we are parsing the task logs for failed jobs for information to 
 display to the user in the CLI.  In addition, we could parse those logs for 
 stack traces and store e them in the SessionState.  This way, when we log 
 failed queries, these will give us a decent idea of why those queries failed.

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[jira] [Commented] (HIVE-2929) race condition in DAG execute tasks for hive

2012-04-07 Thread Hudson (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-2929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249219#comment-13249219
 ] 

Hudson commented on HIVE-2929:
--

Integrated in Hive-trunk-h0.21 #1360 (See 
[https://builds.apache.org/job/Hive-trunk-h0.21/1360/])
HIVE-2929 race condition in DAG execute tasks for hive (Namit Jain via 
Siying Dong) (Revision 1310619)

 Result = ABORTED
sdong : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVNview=revrev=1310619
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/Driver.java
* 
/hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/exec/HadoopJobExecHelper.java


 race condition in DAG execute tasks for hive
 

 Key: HIVE-2929
 URL: https://issues.apache.org/jira/browse/HIVE-2929
 Project: Hive
  Issue Type: Bug
Reporter: Namit Jain
Assignee: Namit Jain
 Attachments: hive.2929.1.patch


 select ...
 (
 SubQuery involving MapReduce
 union all
 SubQuery involving MapReduce
 );
 or 
 select ...
 (SubQuery involving MapReduce)
 join
 (SubQuery involving MapReduce)
 ;
 If both the subQueries finish at nearly the same time, there is a race 
 condition in which the results of the subQuery finishing last will be 
 completely missed.

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[jira] [Commented] (HIVE-2910) Improve the HWI interface

2012-04-07 Thread Ashutosh Chauhan (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-2910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249297#comment-13249297
 ] 

Ashutosh Chauhan commented on HIVE-2910:


Ran the test with patch. All passed. I don't much about this part of code, but 
since Ed (who is the expert in this area) has already +1ed, will commit it.

 Improve the HWI interface
 -

 Key: HIVE-2910
 URL: https://issues.apache.org/jira/browse/HIVE-2910
 Project: Hive
  Issue Type: Improvement
  Components: Web UI
Reporter: Hugo Trippaers
Assignee: Hugo Trippaers
Priority: Minor
  Labels: newbie, patch
 Attachments: hive-2910.3.patch.log, hive-2910.3.patch.txt, 
 hive-hwi-2.patch, hive-hwi.patch, screenie001.PNG, screenie002.PNG


 I've made some improvements to the HWI interface with the Twitter bootstrap 
 system. I'm looking for feedback on the new design.

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[jira] [Commented] (HIVE-2910) Improve the HWI interface

2012-04-07 Thread Ashutosh Chauhan (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-2910?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249298#comment-13249298
 ] 

Ashutosh Chauhan commented on HIVE-2910:


Seems like there are few binary resources (icon png images) which needs to be 
checked-in but aren't uploaded yet. Hugo, can you upload them here with license 
granted to ASF.

 Improve the HWI interface
 -

 Key: HIVE-2910
 URL: https://issues.apache.org/jira/browse/HIVE-2910
 Project: Hive
  Issue Type: Improvement
  Components: Web UI
Reporter: Hugo Trippaers
Assignee: Hugo Trippaers
Priority: Minor
  Labels: newbie, patch
 Attachments: hive-2910.3.patch.log, hive-2910.3.patch.txt, 
 hive-hwi-2.patch, hive-hwi.patch, screenie001.PNG, screenie002.PNG


 I've made some improvements to the HWI interface with the Twitter bootstrap 
 system. I'm looking for feedback on the new design.

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[jira] [Commented] (HIVE-2767) Optionally use framed transport with metastore

2012-04-07 Thread Phabricator (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-2767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249300#comment-13249300
 ] 

Phabricator commented on HIVE-2767:
---

ashutoshc has requested changes to the revision HIVE-2767 [jira] Optionally 
use framed transport with metastore.

  What will happen if the config variable is set to true in client, but is 
false in server and vice-versa?

INLINE COMMENTS
  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java:269 This also needs 
to be added in conf/hive-default.xml.template which serve as a documentation.
  metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java:3020 
In your earlier version of patch you were throwing exception in case both 
secure mode as well as framed transport is set to true. If you have tested with 
both true and it works then its fine, otherwise we should throw an exception 
here.

REVISION DETAIL
  https://reviews.facebook.net/D2661

BRANCH
  HIVE-2767_optional_framed_transport


 Optionally use framed transport with metastore
 --

 Key: HIVE-2767
 URL: https://issues.apache.org/jira/browse/HIVE-2767
 Project: Hive
  Issue Type: New Feature
  Components: Metastore
Reporter: Travis Crawford
Assignee: Travis Crawford
 Attachments: HIVE-2767.D2661.1.patch, HIVE-2767.patch.txt, 
 HIVE-2767_a.patch.txt


 Users may want/need to use thrift's framed transport when communicating with 
 the Hive MetaStore. This patch adds a new property 
 {{hive.metastore.thrift.framed.transport.enabled}} that enables the framed 
 transport (defaults to off, aka no change from before the patch). This 
 property must be set for both clients and the HMS server.
 It wasn't immediately clear how to use the framed transport with SASL, so as 
 written an exception is thrown if you try starting the server with both 
 options. If SASL and the framed transport will indeed work together I can 
 update the patch (although I don't have a secured environment to test in).

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[jira] [Commented] (HIVE-1721) use bloom filters to improve the performance of joins

2012-04-07 Thread Ashutosh Chauhan (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-1721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249310#comment-13249310
 ] 

Ashutosh Chauhan commented on HIVE-1721:


@Alex,
Reading the previous comments on jira, this is proposed to work as follows:
* Create a local task and launch it on client machine, building a bloom filter 
on medium-sized table. (~200MB)
* Create a Common Join MR job and launch it on cluster. Also, ship the bloom 
filter built in previous step to all the mapper nodes (via Distributed Cache).
* In Mapper, look-up key of every row of large table in bloom filter. If it 
exists, then send that row to reducer, else filter it out.
* In reducer, do the cross-product of rows of different table for a given key 
to get your joined output. 

As outlined above, it will be a win since you will be shuffling much less data 
from mappers to reducers. Though assumptions are cost of building bloom filter 
on client machine is small, there is huge difference in sizes of two tables and 
the join key is highly selective. One or more of these assumptions may be wrong 
in which case there might be a performance loss. So, there is a trade-off when 
to use this.

I don't know if there exists a way to compute bloom filter in distributed 
fashion. If there is such a way, then you can do the step 1 through a MR job 
(instead of locally) and on a much larger table and then launch second MR job 
to do step 2  3. Again, there will be trade-offs here. 


 use bloom filters to improve the performance of joins
 -

 Key: HIVE-1721
 URL: https://issues.apache.org/jira/browse/HIVE-1721
 Project: Hive
  Issue Type: New Feature
  Components: Query Processor
Reporter: Namit Jain
  Labels: gsoc, gsoc2012, optimization

 In case of map-joins, it is likely that the big table will not find many 
 matching rows from the small table.
 Currently, we perform a hash-map lookup for every row in the big table, which 
 can be pretty expensive.
 It might be useful to try out a bloom-filter containing all the elements in 
 the small table.
 Each element from the big table is first searched in the bloom filter, and 
 only in case of a positive match,
 the small table hash table is explored.

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[jira] [Commented] (HIVE-1721) use bloom filters to improve the performance of joins

2012-04-07 Thread Ashutosh Chauhan (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-1721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249311#comment-13249311
 ] 

Ashutosh Chauhan commented on HIVE-1721:


Last line should read then launch second MR job to do step 3  4

 use bloom filters to improve the performance of joins
 -

 Key: HIVE-1721
 URL: https://issues.apache.org/jira/browse/HIVE-1721
 Project: Hive
  Issue Type: New Feature
  Components: Query Processor
Reporter: Namit Jain
  Labels: gsoc, gsoc2012, optimization

 In case of map-joins, it is likely that the big table will not find many 
 matching rows from the small table.
 Currently, we perform a hash-map lookup for every row in the big table, which 
 can be pretty expensive.
 It might be useful to try out a bloom-filter containing all the elements in 
 the small table.
 Each element from the big table is first searched in the bloom filter, and 
 only in case of a positive match,
 the small table hash table is explored.

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[jira] [Updated] (HIVE-2585) Collapse hive.metastore.uris and hive.metastore.local

2012-04-07 Thread Ashutosh Chauhan (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2585?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ashutosh Chauhan updated HIVE-2585:
---

Status: Patch Available  (was: Open)

 Collapse hive.metastore.uris and hive.metastore.local
 -

 Key: HIVE-2585
 URL: https://issues.apache.org/jira/browse/HIVE-2585
 Project: Hive
  Issue Type: Improvement
  Components: Metastore
Reporter: Ashutosh Chauhan
Assignee: Ashutosh Chauhan
 Attachments: HIVE-2585.D2559.1.patch, HIVE-2585.D2559.2.patch


 We should just have hive.metastore.uris. If it is empty, we shall assume 
 local mode, if non-empty we shall use that string to connect to remote 
 metastore. Having two different keys for same information is confusing.

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[jira] [Assigned] (HIVE-2883) Metastore client doesnt close connection properly

2012-04-07 Thread Ashutosh Chauhan (Assigned) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ashutosh Chauhan reassigned HIVE-2883:
--

Assignee: Ashutosh Chauhan

 Metastore client doesnt close connection properly
 -

 Key: HIVE-2883
 URL: https://issues.apache.org/jira/browse/HIVE-2883
 Project: Hive
  Issue Type: Bug
  Components: Metastore
Affects Versions: 0.9.0
Reporter: Ashutosh Chauhan
Assignee: Ashutosh Chauhan
 Fix For: 0.9.0

 Attachments: HIVE-2883.D2613.1.patch


 While closing connection, it always fail with following trace. Seemingly, it 
 doesnt have any harmful effects.
 {code}
 12/03/20 10:55:02 ERROR hive.metastore: Unable to shutdown local metastore 
 client
 org.apache.thrift.transport.TTransportException: Cannot write to null 
 outputStream
   at 
 org.apache.thrift.transport.TIOStreamTransport.write(TIOStreamTransport.java:142)
   at 
 org.apache.thrift.protocol.TBinaryProtocol.writeI32(TBinaryProtocol.java:163)
   at 
 org.apache.thrift.protocol.TBinaryProtocol.writeMessageBegin(TBinaryProtocol.java:91)
   at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:62)
   at 
 com.facebook.fb303.FacebookService$Client.send_shutdown(FacebookService.java:421)
   at 
 com.facebook.fb303.FacebookService$Client.shutdown(FacebookService.java:415)
   at 
 org.apache.hadoop.hive.metastore.HiveMetaStoreClient.close(HiveMetaStoreClient.java:310)
 {code}

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[jira] [Commented] (HIVE-2767) Optionally use framed transport with metastore

2012-04-07 Thread Phabricator (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-2767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249411#comment-13249411
 ] 

Phabricator commented on HIVE-2767:
---

travis has commented on the revision HIVE-2767 [jira] Optionally use framed 
transport with metastore.

  If just one side of the connection is using the framed transport the 
connection will fail, likely after the timeout.

  As this is something that is setup just once per site its not likely to 
change often, and it defaults off, so the risk of casual misconfiguration is 
low.

  Any suggestions on how to better clue the user in that the transport may be 
the issue?

INLINE COMMENTS
  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java:269 Good 
suggestion, done.
  metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java:3020 
Good suggestion. I don't have an environment to test SASL in, so I'll add the 
check back.

REVISION DETAIL
  https://reviews.facebook.net/D2661

BRANCH
  HIVE-2767_optional_framed_transport


 Optionally use framed transport with metastore
 --

 Key: HIVE-2767
 URL: https://issues.apache.org/jira/browse/HIVE-2767
 Project: Hive
  Issue Type: New Feature
  Components: Metastore
Reporter: Travis Crawford
Assignee: Travis Crawford
 Attachments: HIVE-2767.D2661.1.patch, HIVE-2767.patch.txt, 
 HIVE-2767_a.patch.txt


 Users may want/need to use thrift's framed transport when communicating with 
 the Hive MetaStore. This patch adds a new property 
 {{hive.metastore.thrift.framed.transport.enabled}} that enables the framed 
 transport (defaults to off, aka no change from before the patch). This 
 property must be set for both clients and the HMS server.
 It wasn't immediately clear how to use the framed transport with SASL, so as 
 written an exception is thrown if you try starting the server with both 
 options. If SASL and the framed transport will indeed work together I can 
 update the patch (although I don't have a secured environment to test in).

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[jira] [Updated] (HIVE-2767) Optionally use framed transport with metastore

2012-04-07 Thread Phabricator (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Phabricator updated HIVE-2767:
--

Attachment: HIVE-2767.D2661.2.patch

travis updated the revision HIVE-2767 [jira] Optionally use framed transport 
with metastore.
Reviewers: JIRA, ashutoshc

-

REVISION DETAIL
  https://reviews.facebook.net/D2661

AFFECTED FILES
  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
  conf/hive-default.xml.template
  metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
  metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java


 Optionally use framed transport with metastore
 --

 Key: HIVE-2767
 URL: https://issues.apache.org/jira/browse/HIVE-2767
 Project: Hive
  Issue Type: New Feature
  Components: Metastore
Reporter: Travis Crawford
Assignee: Travis Crawford
 Attachments: HIVE-2767.D2661.1.patch, HIVE-2767.D2661.2.patch, 
 HIVE-2767.patch.txt, HIVE-2767_a.patch.txt


 Users may want/need to use thrift's framed transport when communicating with 
 the Hive MetaStore. This patch adds a new property 
 {{hive.metastore.thrift.framed.transport.enabled}} that enables the framed 
 transport (defaults to off, aka no change from before the patch). This 
 property must be set for both clients and the HMS server.
 It wasn't immediately clear how to use the framed transport with SASL, so as 
 written an exception is thrown if you try starting the server with both 
 options. If SASL and the framed transport will indeed work together I can 
 update the patch (although I don't have a secured environment to test in).

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[jira] [Updated] (HIVE-2767) Optionally use framed transport with metastore

2012-04-07 Thread Phabricator (Updated) (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-2767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Phabricator updated HIVE-2767:
--

Attachment: HIVE-2767.D2661.3.patch

travis updated the revision HIVE-2767 [jira] Optionally use framed transport 
with metastore.
Reviewers: JIRA, ashutoshc

  Update per comments from review. Add option to hive-default.xml, and disallow 
framed transport when using SASL as that has not been tested.

REVISION DETAIL
  https://reviews.facebook.net/D2661

AFFECTED FILES
  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
  conf/hive-default.xml.template
  metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
  metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java


 Optionally use framed transport with metastore
 --

 Key: HIVE-2767
 URL: https://issues.apache.org/jira/browse/HIVE-2767
 Project: Hive
  Issue Type: New Feature
  Components: Metastore
Reporter: Travis Crawford
Assignee: Travis Crawford
 Attachments: HIVE-2767.D2661.1.patch, HIVE-2767.D2661.2.patch, 
 HIVE-2767.D2661.3.patch, HIVE-2767.patch.txt, HIVE-2767_a.patch.txt


 Users may want/need to use thrift's framed transport when communicating with 
 the Hive MetaStore. This patch adds a new property 
 {{hive.metastore.thrift.framed.transport.enabled}} that enables the framed 
 transport (defaults to off, aka no change from before the patch). This 
 property must be set for both clients and the HMS server.
 It wasn't immediately clear how to use the framed transport with SASL, so as 
 written an exception is thrown if you try starting the server with both 
 options. If SASL and the framed transport will indeed work together I can 
 update the patch (although I don't have a secured environment to test in).

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HiveServer2 Thrift API Proposal

2012-04-07 Thread Carl Steinbach
Hi,

I wrote up a proposal for a new HiveServer2 Thrift API. It's available on
the wiki here:
https://cwiki.apache.org/confluence/display/Hive/HiveServer2+Thrift+API

I'd appreciate it greatly if all interested parties would review the
proposal and respond with feedback. We can discuss any remaining issues at
the next Hive Contributors Meeting on April 18th.

Thanks.

Carl


[jira] [Commented] (HIVE-80) Add testcases for concurrent query execution

2012-04-07 Thread Carl Steinbach (Commented) (JIRA)

[ 
https://issues.apache.org/jira/browse/HIVE-80?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13249465#comment-13249465
 ] 

Carl Steinbach commented on HIVE-80:


HiveServer can't support concurrent connections due to a limitation of the 
current HiveServer Thrift API. There's a proposal for a new HiveServer2 Thrift 
API which fixes these problems located here:

https://cwiki.apache.org/confluence/display/Hive/HiveServer2+Thrift+API


 Add testcases for concurrent query execution
 

 Key: HIVE-80
 URL: https://issues.apache.org/jira/browse/HIVE-80
 Project: Hive
  Issue Type: Test
  Components: Query Processor, Server Infrastructure
Reporter: Raghotham Murthy
Assignee: Carl Steinbach
Priority: Critical
  Labels: concurrency
 Attachments: hive_input_format_race-2.patch


 Can use one driver object per query.

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