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Showing posts with label compaction. Show all posts
Showing posts with label compaction. Show all posts
Sunday, July 3, 2016

apache cassandra 1.0.8 on READ_STAGE threads reference on sstables and so compaction cannot remove the sstables.

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Back then when I was administer a apache cassandra 1.0.8 cluster, I noticed there were some (very little) sstables did not get remove even a...
Sunday, December 20, 2015

what happened to the old sstables after apache cassandra compaction is done

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Last we study into apache cassandra 1.0.8 compaction and now in this article , we will focus on what will happen after the sstables were co...
1 comment:
Friday, January 16, 2015

operate casandra using jmx in terminal including changing pool size, compacting sstables and key cache

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If you operate apache cassandra cluster and if load per node goes huge (like nodetool info show 800GB) , compactions become a problem. It...
Friday, May 2, 2014

How often is cassandra minor compaction running and what trigger it

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There are two types of compactions in cassandra. The minor compaction and the major compaction . Today, we are going to look into minor co...
1 comment:
Sunday, April 27, 2014

code study in cassandra compaction 108 and check what is actually gets remove

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Last we covered topic such as compaction via jconsole and general study into compaction  and what this article is going to focus is, when c...
Saturday, April 12, 2014

Investigate into cassandra 1.0.8 compaction

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So what happened what you trigger compact via nodetool? In a nutshell, it goes into a series of low levels java calls. The execution started...
1 comment:
Thursday, January 16, 2014

force sstable compaction through jconsole

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Happy new year everyone, this is my first article for 2014 and as a start, it is going to be short and sweet one. :-) I was working on this ...
2 comments:
Tuesday, December 31, 2013

Cassandra cluster jmx metrics inspection to decide if cluster expansion is justifiable

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One of the important decision during managing the clusters is to determine when cluster capacity should expand. To maintain a cluster in op...