Even with https://issues.apache.org/jira/browse/CASSANDRA-7386 data
balancing across JBOD setups is pretty horrible. Having used JBOD for
about 2 years from 1.2.x and up, it is my opinion JBOD on Cassandra is
nascent at best and far from mature. For a variety of reasons, JBOD should
perform
What's your ulimit -a output? Did you adjust nproc and nofile ulimits up?
Do you have JNA installed? What about memlock ulimit and in sysctl.conf =
kernel.shmmax?
What's in cassandra.log?
On Mon, May 11, 2015 at 7:24 AM, Rahul Bhardwaj
rahul.bhard...@indiamart.com wrote:
Hi Robert,
I saw
, similar to how pipes, sockets, etc can count against file
descriptor limits.
On Tue, May 12, 2015 at 7:55 PM, J. Ryan Earl o...@jryanearl.us wrote:
What's your ulimit -a output? Did you adjust nproc and nofile ulimits
up? Do you have JNA installed? What about memlock ulimit and in
sysctl.conf
We think it is this bug:
https://issues.apache.org/jira/browse/CASSANDRA-8860
We're rolling a patch to beta before rolling it into production.
On Wed, Mar 4, 2015 at 4:12 PM, graham sanderson gra...@vast.com wrote:
We can confirm a problem on 2.1.3 (sadly our beta sstable state obviously
did
We've been using jna-3.2.4-2.el6.x86_64 with the Sun/Oracle JDK for
probably 2-years now, and it works just fine. Where are you seeing 3.2.7
required at? I searched the pages you link and that string isn't even in
there.
Regardless, I assure you the newest jna that ships in the EL6 repo works
On Wed, Sep 17, 2014 at 8:35 PM, Yatong Zhang bluefl...@gmail.com wrote:
@Chris Lohfink I have 16G memory per node, all the other settings are
default
@J. Ryan Earl I am not sure. I am using the default settings.
But I've found out it might be because some settings in
'/etc/sysctl.conf'. I
What's the 'ulimit -a' output of the user cassandra runs as? From this and
your previous OOM thread, is sounds like you skipped the requisite OS
configuration.
On Wed, Sep 17, 2014 at 9:43 AM, Yatong Zhang bluefl...@gmail.com wrote:
Hi there,
I am using leveled compaction strategy and have
Are you using JNA? Did you adjust your memlock limit?
On Tue, Sep 16, 2014 at 9:46 AM, Chris Lohfink clohf...@blackbirdit.com
wrote:
How much memory does your system have? How much memory is system utilizing
before starting Cassandra (use command free)? What are the heap setting it
tries to
Yes, definitely look how many open files are actual file handles versus
networks sockets. We found a file handle leak in 2.0 but it was patched in
2.0.3 or .5 I think. A million open files is way too high.
On Fri, Aug 8, 2014 at 5:19 PM, Andrey Ilinykh ailin...@gmail.com wrote:
You may have
Why did you switch to RandomPartitioner away from Murmur3Partitioner? Have
you tried with Murmur3?
1. # partitioner: org.apache.cassandra.dht.Murmur3Partitioner
2. partitioner: org.apache.cassandra.dht.RandomPartitioner
On Fri, Dec 6, 2013 at 10:36 AM, srmore comom...@gmail.com wrote:
On Thu, Dec 5, 2013 at 6:33 AM, Alexander Shutyaev shuty...@gmail.comwrote:
We've plugged it into our production environment as a cache in front of
postgres. Everything worked fine, we even stressed it by explicitly
propagating about 30G (10G/node) data from postgres to cassandra.
If you
There was a bug introduced in 2.0.0-beta1 related to TTL, a patch just came
available in: https://issues.apache.org/jira/browse/CASSANDRA-6275
On Thu, Nov 7, 2013 at 5:15 AM, Murthy Chelankuri kmurt...@gmail.comwrote:
I have experimenting cassandra latest version for storing the huge the in
First off, I'm curious what hardware (system specs) you're running this on?
Secondly, here are some observations:
* You're not running the newest JDK7, I can tell by your stack-size.
Consider getting the newest.
* Cassandra 2.0.2 has a lot of improvements, consider upgrading. We
noticed
Are you doing QUORUM reads instead of LOCAL_QUORUM reads?
On Wed, Oct 9, 2013 at 7:41 PM, Chris Burroughs
chris.burrou...@gmail.comwrote:
I have not been able to do the test with the 2nd cluster, but have been
given a disturbing data point. We had a disk slowly fail causing a
significant
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