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[HIVE-12942] Remove Yarn WebApps from LLAP daemon instance - Hive - [issue]
...Yarn WebApps obscures web app contexts and makes it inconvenient.Switch out that impl and instead use org.apache.hive.http.* ones from hive-common, which can be modified more easily....
http://issues.apache.org/jira/browse/HIVE-12942    Author: Gopal V, 2016-01-27, 08:16
[HIVE-12769] LLAP: Pick up java_home from System properties for Slider - Hive - [issue]
...Not setting up JAVA_HOME env var while running --service LLAP can be an easy mistake to make.This can default to the same JDK that is used by bin/hive binary, if there are no user overrides ...
http://issues.apache.org/jira/browse/HIVE-12769    Author: Gopal V, 2016-01-25, 21:59
[HIVE-12809] Vectorization: fast-path for coalesce if input.noNulls = true - Hive - [issue]
...Coalesce can skip processing other columns, if all the input columns are non-null.Possibly retaining, isRepeating=true....
http://issues.apache.org/jira/browse/HIVE-12809    Author: Gopal V, 2016-01-22, 23:47
[HIVE-12914] Vectorization: vectorized SEL_ shows up as OP_ - Hive - [issue]
...The OP_* names in the following explain will have issues when applying RuleRegex walkers against it.Please note that we do not run any rule-regex after the vectorizer runs, so this is a poss...
http://issues.apache.org/jira/browse/HIVE-12914    Author: Gopal V, 2016-01-22, 20:30
[HIVE-11472] ORC StringDirectTreeReader is thrashing the GC due to byte[] allocation per row - Hive - [issue]
...For every row x column        int len = (int) lengths.next();        int offset = 0;        byte[] bytes = new byte[len];  &n...
http://issues.apache.org/jira/browse/HIVE-11472    Author: Gopal V, 2016-01-21, 01:00
[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, 2016-01-20, 21:03
[HIVE-12758] Parallel compilation: Operator::resetId() is not thread-safe - Hive - [issue]
...  private static AtomicInteger seqId;...  public Operator() {    this(String.valueOf(seqId.getAndIncrement()));  }  public static void resetId() {    ...
http://issues.apache.org/jira/browse/HIVE-12758    Author: Gopal V, 2016-01-19, 02:48
[HIVE-12827] Vectorization: VectorCopyRow/VectorAssignRow/VectorDeserializeRow assign needs explicit isNull[offset] modification - Hive - [issue]
...Some scenarios do set Double.NaN instead of isNull=true, but all types aren't consistent.Examples of un-set isNull for the valid values are   private class FloatReader extends AbstractD...
http://issues.apache.org/jira/browse/HIVE-12827    Author: Gopal V, 2016-01-19, 01:34
[HIVE-12826] Vectorization: fix VectorUDAF* suspect isNull checks - Hive - [issue]
...for isRepeating=true, checking isNull[selected[i]] might return incorrect results (without a heavy array fill of isNull).VectorUDAFSum/Min/Max/Avg and SumDecimal impls need to be rev...
http://issues.apache.org/jira/browse/HIVE-12826    Author: Gopal V, 2016-01-19, 01:33
[HIVE-12870] Vectorization: Vectorized readers for simple data types - Hive - [issue]
...Apply the DeserializeRead interface over the simpler data readers....
http://issues.apache.org/jira/browse/HIVE-12870    Author: Gopal V, 2016-01-19, 00:11
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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