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[TEZ-3980] ShuffleRunner: the wake loop needs to check for shutdown - Tez - [issue]
...In the ShuffleRunner threads, there's a loop which does not terminate if the task threads get killed.          while ((runningFetchers.size() >= numFetchers || pe...    Author: Gopal V , 2019-04-19, 19:21
[TEZ-3974] Tez: Correctness regression of TEZ-955 in TEZ-2937 - Tez - [issue]
...TEZ-2937 might have introduced a race condition for Tez output events, along with TEZ-2237      // Close the Outputs.      for (OutputSpec outputSpec : outputSp...    Author: Gopal V , 2019-04-19, 19:21
[TEZ-3969] TaskAttemptImpl: static fields initialized in instance ctor - Tez - [issue]
...The TODO is probably well-placed (& the bug looks somewhat intentional to minimize the size of TaskAttemptImpl object).This isn't causing any bugs at the moment, because the block is cal...    Author: Gopal V , 2019-04-19, 19:21
[TEZ-3962] Configuration decode leaks an Inflater object - Tez - [issue]
...public static Configuration createConfFromByteString(ByteString byteString) throws IOException {...    InflaterInputStream uncompressIs = new InflaterInputStream(byteString.newInpu...    Author: Gopal V , 2019-04-19, 19:21
[HADOOP-11867] FS API: Add a high-performance vectored Read to FSDataInputStream API - Hadoop - [issue]
...The most significant way to read from a filesystem in an efficient way is to let the FileSystem implementation handle the seek behaviour underneath the API to be the most efficient as possib...    Author: Gopal V , 2019-04-17, 19:12
[HIVE-10916] ORC fails to read table with a 38Gb ORC file - Hive - [issue]
...hive>  set mapreduce.input.fileinputformat.split.maxsize=1000000000000;hive> set  mapreduce.input.fileinputformat.split.maxsize=1000000000000;hive> alter table lineitem co...    Author: Gopal V , 2019-04-17, 02:39
[ORC-491] PPD: Column name lookups need to look a struct deeper for ACID - Orc - [issue]
...  public static int[] mapSargColumnsToOrcInternalColIdx(                            List<PredicateLeaf> sargL...    Author: Gopal V , 2019-04-12, 23:56
[HIVE-21548] Statistics: String statistics computation is slower with vectorization enabled - Hive - [issue]
...Computing the hashCode of a String for HLL is goingbyte[] -> Text  -> String -> byte[]to get the Murmur3 hashCode of the byte[] region. ...    Author: Gopal V , 2019-03-30, 05:24
[TEZ-4057] Fix Unsorted broadcast shuffle umasks - Tez - [issue]
...    if (numPartitions == 1 && !pipelinedShuffle) {      //special case, where in only one partition is available.      finalOutPath = outputFi...    Author: Gopal V , 2019-03-30, 00:37
[HIVE-21505] JDBC: Hive jdbc standalone does not have hadoop-common SASL servers - Hive - [issue]
...Either the detection code should use SASL client classes or the shading should include it.Caused by: java.lang.NoClassDefFoundError: org/apache/hadoop/security/SaslRpcServerat org.apache.had...    Author: Gopal V , 2019-03-25, 21:07