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[HBASE-9472] If the memstore size is under .1 or greater than .9 the memstore size defaults to the default memstore size - HBase - [issue]
...In HbaseConfiguration.checkForClusterFreeMemoryLimit it does a check to see if the blockCache + memstore > .8 this threshold ensures we do not run out of memory.But MemStoreFlusher.getMem...
http://issues.apache.org/jira/browse/HBASE-9472    Author: churro morales, 2014-08-08, 19:46
[expand - 1 more] - Re: Getting the number of tombstoned cells read - Cassandra - [mail # dev]
...You're correct, it's not really "last five minutes", like the nodetool helpsays.  Can you open a JIRA ticket to fix that?Regarding showing the max, I'm +0.On Fri, Aug 8, 2014 at 2:43 AM...
   Author: Tyler Hobbs, 2014-08-08, 19:44
Spark Streaming worker underutilized? - Spark - [mail # user]
...jI currently have a 4 node spark setup, 1 master and 3 workers running inspark standalone mode. I am currently stress testing a spark application Iwrote that reads data from kafka and puts i...
   Author: maddenpj, 2014-08-08, 19:43
[SPARK-2930] clarify docs on using webhdfs with spark.yarn.access.namenodes - Spark - [issue]
...The documentation of spark.yarn.access.namenodes talks about putting namenodes in it and gives example with hdfs://.  I can also be used with webhdfs so we should clarify how to use it....
http://issues.apache.org/jira/browse/SPARK-2930    Author: Thomas Graves, 2014-08-08, 19:42
[expand - 4 more] - Re: Running an agent - Flume - [mail # user]
...When I tried running the agent thus:flume-ng agent -c /etc/flume/conf -f /etc/flume/conf/flume.conf -nTwitterAgent &It still occupied the shell session without returning to the command,altho...
   Author: Charles Robertson, 2014-08-08, 19:38
[HBASE-6383] Investigate using 2Q for block cache - HBase - [issue]
...Currently we use a basic version of LRU to handle block caching. LRU is know to be very susceptible to scan thrashing (not scan resistant), which is a common operation in HBase. 2Q is an eff...
http://issues.apache.org/jira/browse/HBASE-6383    Author: Jesse Yates, 2014-08-08, 19:37
[HBASE-5369] Compaction selection based on the hotness of the HFile's block in the block cache - HBase - [issue]
...HBase reserves a large set memory for the block cache and the cached blocks will be age out in a LRU fashion. Obviously, we don't want to age out the blocks which are still hot. However, whe...
http://issues.apache.org/jira/browse/HBASE-5369    Author: Liyin Tang, 2014-08-08, 19:34
Is per-table memory overhead due to SSTables or tables? - Cassandra - [mail # user]
...The "conventional wisdom" says that it's ideal to only use "in the lowhundreds" in the number of tables with cassandra as each table can use 1MBor so of heap.  So if you have 1000 table...
   Author: Kevin Burton, 2014-08-08, 19:30
[SPARK-2699] Improve compatibility with parquet file/table - Spark - [issue]
...after SPARK-2446, the compatibility with parquet file created by old spark release (spark 1.0.x) and by impala (all of versions until now: 1.4.x-cdh5) is broken.strings in those parquet file...
http://issues.apache.org/jira/browse/SPARK-2699    Author: Teng Qiu, 2014-08-08, 19:30
[ACCUMULO-3010] minor compaction after recovery should not merge - Accumulo - [issue]
...Data ingested during recovery is saved to a file with a minor compaction. By allowing a merging minor compaction, additional failures are possible....
http://issues.apache.org/jira/browse/ACCUMULO-3010    Author: Eric Newton, 2014-08-08, 19:28
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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