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[CASSANDRA-4914] Aggregation functions in CQL - Cassandra - [issue]
...The requirement is to do aggregation of data in Cassandra (Wide row of column values of int, double, float etc).With some basic agree gate functions like AVG, SUM, Mean, Min, Max, etc (for t...
http://issues.apache.org/jira/browse/CASSANDRA-4914    Author: Vijay, 2014-08-29, 17:15
[CASSANDRA-7438] Serializing Row cache alternative (Fully off heap) - Cassandra - [issue]
...Currently SerializingCache is partially off heap, keys are still stored in JVM heap as BB, There is a higher GC costs for a reasonably big cache. Some users have used the row cache efficien...
http://issues.apache.org/jira/browse/CASSANDRA-7438    Author: Vijay, 2014-07-31, 11:26
[CASSANDRA-5239] Asynchronous (non-blocking) StorageProxy - Cassandra - [issue]
...Problem Statement: Currently we have "rpc_min_threads, rpc_max_threads"/ "native_transport_min_threads/native_transport_max_threads" all of the threads in the TPE are blocking and takes reso...
http://issues.apache.org/jira/browse/CASSANDRA-5239    Author: Vijay, 2014-07-23, 22:14
[CASSANDRA-3486] Node Tool command to stop repair - Cassandra - [issue]
...After CASSANDRA-1740, If the validation compaction is stopped then the repair will hang. This ticket will allow users to kill the original repair....
http://issues.apache.org/jira/browse/CASSANDRA-3486    Author: Vijay, 2014-06-30, 20:11
[CASSANDRA-6544] Reduce GC activity during compaction - Cassandra - [issue]
...We are noticing increase in P99 while the compactions are running at full stream. Most of it is because of the increased GC activity (followed by full GC).The obvious solution/work around is...
http://issues.apache.org/jira/browse/CASSANDRA-6544    Author: Vijay, 2014-06-05, 14:03
[CASSANDRA-4139] Add varint encoding to Messaging service - Cassandra - [issue]
http://issues.apache.org/jira/browse/CASSANDRA-4139    Author: Vijay, 2014-03-27, 15:51
[CASSANDRA-3487] better repair session timeouts and retrys - Cassandra - [issue]
...It would be great if we can timeout a validation compaction which is taking long or had an exception while doing a Validation. Repair can gossip its status to all the other nodes, hence any ...
http://issues.apache.org/jira/browse/CASSANDRA-3487    Author: Vijay, 2014-02-20, 08:11
[HDFS-5779] Caused by: javax.security.auth.login.LoginException: java.lang.NullPointerException: invalid null input: name - HDFS - [issue]
...xxxxxx@testhost:/home/xxxxxx/Lab/hdfs/namenodep$ hadoop namenode -formatWarning: $HADOOP_HOME is deprecated.14/01/15 04:51:38 INFO namenode.NameNode: STARTUP_MSG:/***************************...
http://issues.apache.org/jira/browse/HDFS-5779    Author: Vijay, 2014-01-15, 20:40
Re: How to load a web log file (text format) to Hive with compression - Hive - [mail # user]
...Hive has built-in support for gzipped text files so you don't need to do anything special with them (meaning you just load them like regular files). However, there is one important limitatio...
   Author: Vijay, 2013-11-12, 04:25
Re: Use RANK OVER PARTITION function in Hive 0.11 - Hive - [mail # user]
...As the error message states: "One ore more arguments are expected," you have to pass a column to the rank function.   On Wed, Jul 17, 2013 at 1:12 AM, Jérôme Verdier wrote:  ...
   Author: Vijay, 2013-07-17, 09:01
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