One thought I had would be to grep for all lines in the logs for the
equivalent of
grep "Cleaning up SSTableReader(path='/data/cassandra/keyspace/cf/"
/var/log/cassandra/system.log | wc -l
which would give you the number of sstables processed for that column
family. Then you could compare that t
Hi
We are running a Cassandra 1.0.7, 2 node setup on EC2 using ephemeral
disks for storage.
Debugging inconsistent dara between 2 nodes we saw logging below.
Following the counter CF design, I assume this means the READ step
reconciliating the memtable value with the SSTables on the replica
rec
On Thu, Nov 29, 2012 at 11:56 AM, Wei Zhu wrote:
> I am trying to rename a cluster by following the instruction on Wiki:
> [...]
> I have to remove the data directory in order to change the cluster name.
> Luckily it's my testing box, so no harm. Just wondering what has been
> changed not to allow
Since the cluster name is only cosmetic people do not often change it. I
would not do this in a production cluster for sure.
On Thu, Nov 29, 2012 at 2:56 PM, Wei Zhu wrote:
> Hi,
> I am trying to rename a cluster by following the instruction on Wiki:
>
> Cassandra says "ClusterName mismatch: old
Hi,
I am trying to rename a cluster by following the instruction on Wiki:
Cassandra says "ClusterName mismatch: oldClusterName != newClusterName" and
refuses to start
To prevent
operator errors, Cassandra stores the name of the cluster in its system
table. If you need to rename a cluster for s
compactionstats does not show the overall progress it has made on cleanup
operations for an entire keyspace -- It just shows the current progress on
each sstable it is working on. How would you suggest you abstract those
stats to guesstimate overall cleanup progress across all sstables in that
keys
You can do check nodetool compactionstats to see progress for current cleanup
operations. It essentially traverses all of your sstables and removes data
that the node isn't responsible for. So that's the overall operation, so you
would estimate in terms of how long it would take to go through
I know there is very little insight currently into long running JMX operations
but has anyone figured out any way clever to determine approximate progress on
cleanup operations? Merci.
Best,
Michael
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Hi Roshan,
Take a peep at
http://www.datastax.com/docs/1.1/dml/using_cli#reading-rows-and-columns
Hope that helps.
Cheers
Roshan Dawrani a écrit sur 29/11/2012 11:28:48 :
> Roshan Dawrani
> 29/11/2012 11:28
>
> Veuillez répondre à
> user@cassandra.apache.org
>
> A
>
> user ,
>
> cc
>
Is it possible to update the column-metadata of a column family definition
programmatically? If yes, can someone please point me to the right classes
to use?
Thanks.
On Thu, Nov 29, 2012 at 3:58 PM, Roshan Dawrani wrote:
> Hi,
>
> I have an existing column family that is created with comparator
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