Recently we faced an issue where every repair operation caused addition of
hundreds of sstables (CASSANDRA-9146). In order to bring situation under
control and make sure reads are not impacted, we were left with no option but
to run major compaction to ensure that thousands of tiny sstables are
Have you tried user defined compactions via JMX?
On Apr 12, 2015 1:40 PM, "Anuj Wadehra" wrote:
> Recently we faced an issue where every repair operation caused addition of
> hundreds of sstables (CASSANDRA-9146). In order to bring situation under
> control and make sure reads are not impacted, w
Often we face errors on Cassandra start regarding unfinished compactions
particularly when cassandra was abrupty shut down . Problem gets resolved when
we delete /var/lib/cassandra/data/system/compactions_in_progress folder. Does
deletion of the folder has any impact on integrity of data or any
No.
Anuj Wadehra
On Monday, 13 April 2015 12:23 AM, Sebastian Estevez
wrote:
Have you tried user defined compactions via JMX?On Apr 12, 2015 1:40 PM, "Anuj
Wadehra" wrote:
Recently we faced an issue where every repair operation caused addition of
hundreds of sstables (CASSANDRA
I do understand how MaxTenuringThreshold works, thanks for your evaluation
though.
I dont think you saw my complete post with the values i have used for the
heap size and and the *memtable_total_space_in_mb=2048* which is two times
smaller than the young generation space i am using. additionally
*
Thanks Tyler for the validations,
I have a follow up question.
" One SSTable doesn't have precedence over another. Instead, when the same
cell exists in both sstables, the one with the higher write timestamp wins."
if my table has 5(non partition key columns) and i update only 1 of them
then th
Hey Alex,
We are planning on using Cassandra 2.0.13 and looks like it will take us a
month to go production. Since the team that needs PHP is only going to
read, if we dont think there is to much integration testing or otherwise we
need to do with PHP driver so if we get a PHP production driver in
the php team is very stringent about response times, i will see if we can
do a node js web service or some form of inter process communication setup
between php <==> python to achieve this, thanks for the idea.
On Fri, Apr 10, 2015 at 7:13 PM, Michael Dykman wrote:
> Somewhat over a year ago, I
