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Re: [ANNOUNCE] New Hive Committers - Gopal Vijayaraghavan and Szehon Ho - Hive - [mail # dev]
...On 6/22/14, 8:42 PM, Carl Steinbach wrote:Thanks everyone! And congrats Szehon!Cheers,Gopal ...
   Author: Gopal V, 2014-06-23, 04:53
[HIVE-7236] Tez progress monitor should indicate running/failed tasks - Hive - [issue]
...Currently, the only logging in TezJobMonitor is for completed tasks. This makes it hard to locate task stalls and task failures. Failure scenarios are harder to debug, in particular when ana...
http://issues.apache.org/jira/browse/HIVE-7236    Author: Gopal V, 2014-06-21, 08:41
[HIVE-7204] Use NULL vertex location hint for Prewarm DAG vertices - Hive - [issue]
...The current 0.5.x branch of Tez added extra preconditions which check for parallelism settings to match between the number of containers and the vertex location hints.Caused by: org.apache.h...
http://issues.apache.org/jira/browse/HIVE-7204    Author: Gopal V, 2014-06-15, 03:28
[HIVE-7074] The reducer parallelism should be a prime number for better stride protection - Hive - [issue]
...The current hive reducer parallelism results in stride issues with key distribution.a JOIN generating even numbers will get strided onto only some of the reducers.The probability of distribu...
http://issues.apache.org/jira/browse/HIVE-7074    Author: Gopal V, 2014-06-10, 03:44
[HIVE-7121] Use murmur hash to distribute HiveKey - Hive - [issue]
...The current hashCode implementation produces poor parallelism when dealing with single integers or doubles.And for partitioned inserts into a 1 bucket table, there is a significant hotspot o...
http://issues.apache.org/jira/browse/HIVE-7121    Author: Gopal V, 2014-06-10, 03:44
[HIVE-6347] ZeroCopy read path for ORC RecordReader - Hive - [issue]
...ORC can use the new HDFS Caching APIs and the ZeroCopy readers to avoid extra data copies into memory while scanning files.Implement ORC zcr codepath and a hive.orc.zerocopy flag....
http://issues.apache.org/jira/browse/HIVE-6347    Author: Gopal V, 2014-06-09, 11:21
[HIVE-7147] ORC PPD should handle CHAR/VARCHAR types - Hive - [issue]
...ORC PPD does not handle Varchar/Char data types.Caused by: java.lang.IllegalArgumentException: Unknown type VARCHAR        at org.apache.hadoop.hive.ql.io.orc.Record...
http://issues.apache.org/jira/browse/HIVE-7147    Author: Gopal V, 2014-06-02, 07:33
[HIVE-7151] NULL keys should not be shuffled for inner equi joins - Hive - [issue]
...There is a huge skew in reducer load for NULL keys in shuffle joins, resulting in one slow reducer out of many.The NULL keys will not contribute towards the inner JOIN condition for equality...
http://issues.apache.org/jira/browse/HIVE-7151    Author: Gopal V, 2014-05-31, 20:18
[HIVE-6391] Use pre-warm APIs in Tez to improve hive query startup - Hive - [issue]
...With the addition of TEZ-766, Tez supports pre-warmed containers within the Tez session.Allow hive users to enable and use this feature from within the hive shell....
http://issues.apache.org/jira/browse/HIVE-6391    Author: Gopal V, 2014-04-23, 08:17
[HIVE-6787] ORC+ACID assumes all missing buckets are in ACID structure - Hive - [issue]
...ORC+ACID creates ACID structure splits for all missing buckets in a tablejava.lang.RuntimeException: java.io.IOException: java.io.IOException: Vectorization and ACID tables are incompatible....
http://issues.apache.org/jira/browse/HIVE-6787    Author: Gopal V, 2014-04-08, 16:12
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB