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Re: blockcache 101 - HBase - [mail # dev]
...Here is a follow up to Nick's blockcache 101 that compares a number ofdeploys x loadings and makes recommendation: https://blogs.apache.org/hbase/St.AckOn Fri, Apr 4, 2014 at 9:22 PM, Stack ...
   Author: Stack, 2014-08-08, 20:19
RDD partitioner or repartition examples? - Spark - [mail # user]
...I'm processing about 10GB of tab delimited rawdata with a few fields (pageand user id along with timestamp when user viewed the page) using a 40 nodecluster and using SparkSQL to compute the...
   Author: buntu, 2014-08-08, 20:14
[expand - 4 more] - Architecture: amount of partitions - Kafka - [mail # user]
...Dear all, I'm new to Kafka, and I'm considering using it for a maybe not very usualpurpose. I want it to be a backend for data synchronization between amagnitude of devices, which are n...
   Author: Roman Iakovlev, 2014-08-08, 20:04
Spark sql failed in yarn-cluster mode when connecting to non-default hive database - Spark - [mail # user]
...Hi,I am able to run my hql query on yarn cluster mode when connecting to thedefault hive metastore defined in hive-site.xml.however, if I want to switch to a different database, like: &...
   Author: Jenny Zhao, 2014-08-08, 19:57
[expand - 1 more] - Re: Lost executors - Spark - [mail # user]
...Same here Ravi. See my post on a similar thread.Are you running on YARN client?On Aug 7, 2014 2:56 PM, "rpandya"  wrote: ...
   Author: Avishek Saha, 2014-08-08, 19:56
[HBASE-10643] Failure in RS when using large size bucketcache - HBase - [issue]
...When RS is brought up with XX:MaxDirectMemorySize of 22GB or higher, RS fails after a successful start. From the RS logs it looks like the bucketCache memory allocation is taking more time m...
http://issues.apache.org/jira/browse/HBASE-10643    Author: Biju Nair, 2014-08-08, 19:56
[HBASE-5375] Ensure that compactions use already cached blocks but do not cache new data blocks - HBase - [issue]
...Create a unit test to verify that compactions reuse existing cached blocks but do not thrash the cache with newly read blocks. Also need to verify that we only read every data block once, e....
http://issues.apache.org/jira/browse/HBASE-5375    Author: Mikhail Bautin, 2014-08-08, 19:50
[HBASE-5263] Preserving cached data on compactions through cache-on-write - HBase - [issue]
...We are tackling HBASE-3976 and HBASE-5230 to make sure we don't trash the block cache on compactions if cache-on-write is enabled. However, it would be ideal to reduce the effect compactions...
http://issues.apache.org/jira/browse/HBASE-5263    Author: Mikhail Bautin, 2014-08-08, 19:49
[HBASE-8894] Forward port compressed l2 cache from 0.89fb - HBase - [issue]
...Forward port Alex's improvement on hbase-7407 from 0.89-fb branch:  1 r1492797 | liyin | 2013-06-13 11:18:20 -0700 (Thu, 13 Jun 2013) | 43 lines  2  3 [master] ...
http://issues.apache.org/jira/browse/HBASE-8894    Author: stack, 2014-08-08, 19:47
[expand - 4 more] - Re: PySpark + executor lost - Spark - [mail # user]
...So I think I have a better idea of the problem now.The environment is YARN client and IIRC PySpark doesn't run on YARNcluster.So my client is heavily loaded which causes iy loose a lot of e ...
   Author: Avishek Saha, 2014-08-08, 19:47
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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