Hi all,
Yesterday I put a lot of blobs into Cassandra and it created many, probably
compaction, pending tasks (few hundreds according to Ops Center). On all
nodes all pending tasks were eventually processed, but on one problematic,
I see no related activity. Problematic node seems to be
Should I experience any problems even if split versions vary only by minor
digit?
After another restart of node, it seems that the problem was solved somehow.
Regards,
Pavel
On Thu, Sep 4, 2014 at 1:59 PM, Robert Coli rc...@eventbrite.com wrote:
On Thu, Sep 4, 2014 at 8:09 AM, Pavel Kogan
We use Cassandra 2.0.8.
Probably after decommissioning nodes long time ago, but I am not sure. We
are not using this cluster intensively.
According to Jira, this problem was fixed in 2.0.5
https://issues.apache.org/jira/browse/CASSANDRA-6053
Anyway, I truncated peers table and restarted one node
I tried cqlsh command on other nodes and you are right! I had no idea that
cqlsh results could be node dependent.
Thanks,
Pavel
On Wed, Sep 3, 2014 at 10:54 AM, Tyler Hobbs ty...@datastax.com wrote:
On Wed, Sep 3, 2014 at 6:44 AM, Pavel Kogan pavel.ko...@cortica.com
wrote:
Why peers
Thanks Robert.
On Thu, Aug 28, 2014 at 6:32 PM, Robert Coli rc...@eventbrite.com wrote:
On Thu, Aug 28, 2014 at 3:31 PM, Pavel Kogan pavel.ko...@cortica.com
wrote:
Shouldn't all commitlog files be auto deleted after replaying, for
example after node restart?
Using Cassandra 2.0.8
Hi all,
Shouldn't all commitlog files be auto deleted after replaying, for example
after node restart?
Using Cassandra 2.0.8
Thanks,
Pavel
It seems that memtable tries to flush itself to SSTable of not existing
keyspace. I don't know why it is happens, but probably running nodetool
flush before drop should prevent this issue.
Pavel
On Thu, Jul 10, 2014 at 4:09 AM, Fabrice Larcher fabrice.larc...@level5.fr
wrote:
​Hello,
I am
Moving to Leveled compaction resolved same problem for us. As Robert
mentioned, use it carefully.
Size tiered compaction requires having 50% free disk space (also according
to datastax documentation).
Pavel
On Wed, Jul 9, 2014 at 8:39 PM, Robert Coli rc...@eventbrite.com wrote:
On Wed, Jul 9,
Hi all,
I want to merge one keyspace (A) data into another (B) with exactly same
scheme. The partition keys of all records are unique in both keyspaces. Can
I just copy all files under keyspace A column families into keyspace B
column families folders, after running nodetool flush? Is filenames
can select any number?
Regards,
Pavel
On Fri, Jun 27, 2014 at 1:35 PM, Robert Coli rc...@eventbrite.com wrote:
On Fri, Jun 27, 2014 at 8:28 AM, Pavel Kogan pavel.ko...@cortica.com
wrote:
I want to merge one keyspace (A) data into another (B) with exactly same
scheme. The partition keys
Thanks Robert.
On Fri, Jun 27, 2014 at 2:21 PM, Robert Coli rc...@eventbrite.com wrote:
On Fri, Jun 27, 2014 at 10:57 AM, Pavel Kogan pavel.ko...@cortica.com
wrote:
So basically when I rename all files during merge of keyspaces, I will
substitute dest keyspace, column family is the same
1) You can use list of strings which are serialized JSONs, or use
ByteBuffer with your own serialization as Jeremy suggested.
2) Use Cassandra 2.1 (not officially released yet) were there is new
feature of user defined types.
Pavel
On Tue, Jun 24, 2014 at 9:18 AM, Jeremy Jongsma
sn...@snazy.de wrote:
Am 21.06.2014 um 00:37 schrieb Pavel Kogan pavel.ko...@cortica.com:
Thanks,
Is there any code way to know when the scheme finished to settle down?
Yep - take a look at
com.datastax.driver.core.ControlConnection#waitForSchemaAgreement in the
Java Driver source
Valle
marc...@s1mbi0se.com.br wrote:
Pavel,
Out of curiosity, did it start to happen before some update? Which version
of Cassandra are you using?
[]s
2014-06-19 16:10 GMT-03:00 Pavel Kogan pavel.ko...@cortica.com:
What a coincidence! Today happened in my cluster of 7 nodes as well
? Is it taking much more time to run each time
it runs?
I am no Cassandra expert, but I would try these things first and post the
results here. Maybe other people in the list have more ideas.
Best regards,
Marcelo.
2014-06-20 8:50 GMT-03:00 Pavel Kogan pavel.ko...@cortica.com:
The cluster
the heap.
Anyone else?
But did you check the logs for the GCInspector?
In my case, nodes are falling because of the heap, in your case, maybe
it's something else.
Do you see increased times when looking for GCInspector in the logs?
[]s
2014-06-20 14:51 GMT-03:00 Pavel Kogan pavel.ko
atomicity, resolved the issue for me.
http://mail-archives.apache.org/mod_mbox/cassandra-commits/201404.mbox/%3ceee5dd5bc4794ef0b5c5153fdb583...@git.apache.org%3E
On Fri, Jun 20, 2014 at 3:55 PM, Pavel Kogan pavel.ko...@cortica.com
wrote:
Logged batch.
On Fri, Jun 20, 2014 at 2:13 PM, DuyHai Doan
Hi,
In our project, many distributed modules sending each other binary blobs,
up to 100-200kb each in average. Small JSONs are being sent over message
queue, while Cassandra is being used as temporary storage for blobs. We are
using Cassandra instead of in memory distributed cache like Couch due
, but not folders?
Correct?
Pavel
On Fri, Jun 20, 2014 at 6:01 PM, Robert Coli rc...@eventbrite.com wrote:
On Fri, Jun 20, 2014 at 2:48 PM, Pavel Kogan pavel.ko...@cortica.com
wrote:
So what we did is creating every hour new keyspace named _MM_dd_HH
and when disk becomes full, script running
On Fri, Jun 20, 2014 at 6:01 PM, Robert Stupp sn...@snazy.de wrote:
Am 20.06.2014 um 23:48 schrieb Pavel Kogan pavel.ko...@cortica.com:
1) When new keyspace with its columnfamilies is being just created
(every round hour), sometimes other modules failed to read/write data, and
we lose
What a coincidence! Today happened in my cluster of 7 nodes as well.
Regards,
Pavel
On Wed, Jun 18, 2014 at 11:13 AM, Marcelo Elias Del Valle
marc...@s1mbi0se.com.br wrote:
I have a 10 node cluster with cassandra 2.0.8.
I am taking this exceptions in the log when I run my code. What my
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