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[expand - 2 more] - Re: How to stop "nodetool repair" in 2.1.2? - Cassandra - [mail # user]
...Using JMX worked. Thanks a lot.On Wed, Apr 15, 2015 at 3:57 PM, Robert Coli  wrote: ...
   Author: Benyi Wang, 2015-04-16, 05:15
[expand - 1 more] - Re: Do I need to run repair and compaction every node? - Cassandra - [mail # user]
...What about "incremental repair" and "sequential repair"?I ran "nodetool repair -- keyspace table" on one node. I found the repairsessions running on different nodes. Will this command repair...
   Author: Benyi Wang, 2015-04-13, 21:39
[expand - 3 more] - Re: Why select returns tombstoned results? - Cassandra - [mail # user]
...All servers are running ntpd. I guess the time should be synced across allservers.My dataset is too large to use sstable2json. It would take long time.I will try to repair to see if the issu...
   Author: Benyi Wang, 2015-04-01, 16:58
[SPARK-6589] SQLUserDefinedType failed in spark-shell - Spark - [issue]
...DataType.fromJson will fail in spark-shell if the schema includes "udt". It works if running in an application. This causes that I cannot read a parquet file including a UDT field. DataType....
http://issues.apache.org/jira/browse/SPARK-6589    Author: Benyi Wang, 2015-03-28, 19:37
Delete columns - Cassandra - [mail # user]
...In C* 2.1.2, is there a way you can delete without specifying the row key?create table (  guid text,  key1 text,  key2 text,  data int  prim...
   Author: Benyi Wang, 2015-02-27, 17:38
Re: Does Spark automatically run different stages concurrently when possible? - Spark - [mail # user]
...You may try to change the schudlingMode to FAIR, the default is FIFO. Takea look at this pagehttps://spark.apache.org/docs/1.1.0/job-scheduling.html#scheduling-within-an-applicationOn Sat, J...
   Author: Benyi Wang, 2015-01-10, 20:19
[expand - 2 more] - Re: How to bulkload into a specific data center? - Cassandra - [mail # user]
...On Fri, Jan 9, 2015 at 3:55 PM, Robert Coli  wrote:I'm lucky that those are virtual data centers in LAN.I just don't want to have a load burst in the "service" virtual data centerbecaus...
   Author: Benyi Wang, 2015-01-10, 20:16
Is it possible to delete columns or row using CQLSSTableWriter? - Cassandra - [mail # dev]
...CQLSSTableWriter only accepts an INSERT or UPDATE statement. I'm wonderingwhether make it accept DELETE statement.I need to update my cassandra table with a lot of data everyday.* I may need...
   Author: Benyi Wang, 2015-01-07, 21:52
Is it possible to flush memtable in one virtual center? - Cassandra - [mail # user]
...We have one ring and two virtual data centers in our Cassandra cluster? oneis for Real-Time and the other is for analytics. My questions are:   1. Are there memtables in Analytics ...
   Author: Benyi Wang, 2014-12-15, 23:22
HTTP 500 Error for SparkUI in YARN Cluster mode - Spark - [mail # user]
...I got this error when I click "Track URL: ApplicationMaster" when I run aspark job in YARN cluster mode. I found this jirahttps://issues.apache.org/jira/browse/YARN-800, but I could not get ...
   Author: Benyi Wang, 2014-12-14, 19:29
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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