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[MAPREDUCE-2841] Task level native optimization - MapReduce - [issue]
...I'm recently working on native optimization for MapTask based on JNI. The basic idea is that, add a NativeMapOutputCollector to handle k/v pairs emitted by mapper, therefore sort, spill, IFi...
http://issues.apache.org/jira/browse/MAPREDUCE-2841    Author: Binglin Chang, 2014-09-06, 08:21
[HDFS-6506] Newly moved block replica been invalidated and deleted in TestBalancer - HDFS - [issue]
...TestBalancerWithNodeGroup#testBalancerWithNodeGroup fails recentlyhttps://builds.apache.org/job/PreCommit-HDFS-Build/7045//testReport/from the error log, the reason seems to be that newly mo...
http://issues.apache.org/jira/browse/HDFS-6506    Author: Binglin Chang, 2014-09-05, 23:16
[MAPREDUCE-6058] native-task: KVTest and LargeKVTest should check mr job is sucessful - MapReduce - [issue]
...When running KVTest and LargeKVTest, if the job failed for some reason(lack libhadoop.so etc), both native and normal job failed, and both compare empty output directory, so the test passes ...
http://issues.apache.org/jira/browse/MAPREDUCE-6058    Author: Binglin Chang, 2014-09-05, 05:24
[HADOOP-10388] Pure native hadoop client - Hadoop - [issue]
...A pure native hadoop client has following use case/advantages:1.  writing Yarn applications using c++2.  direct access to HDFS, without extra proxy overhead, comparing to web/nfs i...
http://issues.apache.org/jira/browse/HADOOP-10388    Author: Binglin Chang, 2014-09-04, 15:33
[MAPREDUCE-6056] nativetask: move system test working dir to target dir and cleanup test config xml files - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-6056    Author: Binglin Chang, 2014-09-02, 09:31
[expand - 1 more] - Re: impala statestored crashed because network issue - Impala - [mail # user]
...Sorry, didn't enable core dump... it's more convenient if we can put stracktrace into exception::what()On Friday, August 29, 2014 6:01:32 AM UTC+8, Henry wrote:To unsubscribe from this group...
   Author: Binglin Chang, 2014-08-29, 02:27
[expand - 4 more] - Re: How to merge small parquet files? - Impala - [mail # user]
...set PARQUET_FILE_SIZE=2147483648 create table user_olap_hdfs_opt2 STORED AS PARQUET LOCATION 'xxxxxx' as select * from user_olap_hdfs; On Tuesday, August 26, 2014 2:23:16 AM UTC+8, Ippokrati...
   Author: Binglin Chang, 2014-08-26, 08:42
[expand - 2 more] - Re: impalad 1.2.4 webserver hangs - Impala - [mail # user]
...Oh, I see in latest version, related code is changed, should not be a problem anymore...Thanks,BinglinOn Friday, August 22, 2014 2:21:13 PM UTC+8, Ippokratis Pandis wrote:To unsubscribe from...
   Author: Binglin Chang, 2014-08-22, 06:41
[expand - 4 more] - Re: slow HDFS_SCAN_NODE time for simple query - Impala - [mail # user]
...Hi Ippokratis,I apply the change and now the query does not crash impalad anymore, instead it just show an error message:ERROR: Cannot write value that needs 95854 bytes to a Parquet data pa...
   Author: Binglin Chang, 2014-08-20, 08:59
[MAPREDUCE-6006] native-task: add native tests to maven and fix bug in pom.xml - MapReduce - [issue]
http://issues.apache.org/jira/browse/MAPREDUCE-6006    Author: Binglin Chang, 2014-08-14, 05:47
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