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[IMPALA-402] Dynamic partition expr involving rand() is evaluated only once - Impala - [issue]
...I found two problems: "Insert overwrite table" doesn't clean up the directory (external table)$ hadoop fs -ls -R /user/benyiw/tmp_abc;drwxr-xr-x   - impala supergroup     &nbs...
http://issues.cloudera.org/browse/IMPALA-402    Author: Benyi Wang, 2014-10-08, 18:59
How to make Spark-sql join using HashJoin - Spark - [mail # user]
...I'm using CDH 5.1.0 with Spark-1.0.0. There is spark-sql-1.0.0 in clouder'amaven repository. After put it into the classpath, I can use spark-sql inmy application.One of issue is that I coul...
   Author: Benyi Wang, 2014-10-06, 23:21
Spark Language Integrated SQL for join on expression - Spark - [mail # user]
...scala> userres19: org.apache.spark.sql.SchemaRDD =SchemaRDD[0] at RDD at SchemaRDD.scala:98== Query Plan ==ParquetTableScan [id#0,name#1], (ParquetRelation/user/hive/warehouse/user), None...
   Author: Benyi Wang, 2014-09-29, 22:40
Is it a bug in CombineFileSplit? - Hadoop - [mail # dev]
...I use Spark's SerializableWritable to wrap CombineFileSplit so I can passaround the splits. But I ran into Serialization issues. In researching whymy code fails, I found that this might be a...
   Author: Benyi Wang, 2014-09-16, 22:38
[expand - 1 more] - Re: How to set KryoRegistrator class in spark-shell - Spark - [mail # user]
...I can do that in my application, but I really want to know how I can do itin spark-shell because I usually prototype in spark-shell before I put thecode into an application.On Wed, Aug 20, 2...
   Author: Benyi Wang, 2014-08-20, 20:10
Multiple NFS/HttpFS gateways - Hadoop - [mail # user]
...I need to copy log files from our web servers (only 14 servers) to HDFS.Before deploying Kfaka or Flume, I just want to provide a simple solutionto our TechOp guys using NFS or HTTP with whi...
   Author: Benyi Wang, 2014-08-08, 23:42
[expand - 3 more] - Re: Does sqoop 1/2 support import as Parquet file? - Sqoop - [mail # user]
..."Cloudera connector Powered by Teradata" seems not to support HCatalog.If using GenericJdbcManager, I could create hcatalog table using ORC, butfailed with this error to write into a parquet...
   Author: Benyi Wang, 2014-06-19, 16:30
[expand - 2 more] - Re: Sqoop hangs when import from Teradata - Sqoop - [mail # user]
...I tried --verbose before, and no any affect. I waited for it until theerror message is shown.On Wed, Jun 18, 2014 at 2:01 PM, Abraham Elmahrek  wrote: ...
   Author: Benyi Wang, 2014-06-18, 21:49
[HIVE-2817] Drop any table even without privilege - Hive - [issue]
...You can drop any table if you use fully qualified name 'database.table' even you don't have any previlige.hive> set hive.security.authorization.enabled=true;hive> revoke all on default...
http://issues.apache.org/jira/browse/HIVE-2817    Author: Benyi Wang, 2014-04-14, 23:15
[HIVE-2818] Create table should check privilege of target database, not default database - Hive - [issue]
...Hive seems check the current database to determine the privilege of a statement when you use fully qualified name like 'database.table'hive> set hive.security.authorization.enabled=true;h...
http://issues.apache.org/jira/browse/HIVE-2818    Author: Benyi Wang, 2014-03-31, 23:13
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