12:03 PM
To: user@cassandra.apache.org
Subject: [EXTERNAL] Re: Cassandra rate dropping over long term test
I looked at the compaction history on the affected node when it was affected
and it was not affected.
The number of compactions is fairly similar and the amount of work also.
Not affected
I looked at the compaction history on the affected node when it was
affected and it was not affected.
The number of compactions is fairly similar and the amount of work also.
*Not affected time*
[root@cassandra7 ~]# nodetool compactionhistory | grep 02T22
fda43ca0-9696-11e8-8efb-25b020ed0402 demo
Probably Compaction
Cassandra data files are immutable
The write path first appends to a commitlog, then puts data into the memtable.
When the memtable hits a threshold, it’s flushed to data files on disk (let’s
call the first one “1”, second “2” and so on)
Over time we build up multiple data
Hi all,
I am perftesting cassandra over a longrun in a cluster of 8 nodes and i
noticed the rate of service drops.
Most of the nodes have the CPU between 40-65% however one of the nodes has
a higher CPU and also started performing a lot of read IOPS as seen in the
image. (green is read IOPS)
My t
