Thanks, I'll let you know when I'll do so. But any Idea about the increase
of the heap used if all seems to be well configured ? Should I raise a
ticket since we are at least 3 having this issue from what I saw in the
mailing list ?
2013/3/14 aaron morton aa...@thelastpickle.com
No, I didn't.
Just to make it clear: This bug will occur on single-DC configuration too.
In our case it resulted in Exception like this at the very end of node
startup:
ERROR [WRITE-/SOME-IP] 2013-02-27 12:14:55,433 CassandraDaemon.java
(line 133) Exception in thread Thread[WRITE-/SOME-IP,5,main]
Well it seems I have nothing like this when I run a $grep Unknown host
/var/log/cassandra/system.log.
This issue was reported in 1.2.1 and commited to the trunk. It may have
been fixed in 1.2.2 even if I can't see the release version from the jira
nor can I see it in the changelog.
Thanks again
It will happen if your rpc_address is set to 0.0.0.0.
Ops, it's not what I meant ;-)
It will happen, if your rpc_address is set to IP that is not defined in
your cluster's config (e.g. in cassandra-topology.properties for
PropertyFileSnitch)
M.
M.
W dniu 14.03.2013 13:03, Alain
We have it set to 0.0.0.0 but anyway, as told before, I don't think our
problem come from this bug.
2013/3/14 Michal Michalski mich...@opera.com
It will happen if your rpc_address is set to 0.0.0.0.
Ops, it's not what I meant ;-)
It will happen, if your rpc_address is set to IP that is
It might be this https://issues.apache.org/jira/browse/CASSANDRA-4201
As dean said, if you drain the node during shut down you can delete the logs.
If you are paranoid just move them out of the way.
Another thing I have noticed is that upon restarts, the old keyspaces that
were deleted
I'm not sure you can.
Sylvain / Michael? Is this possible?
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 13/03/2013, at 10:19 AM, Haithem Jarraya haithem.jarr...@struq.com wrote:
Hi there,
I am wondering if
You can.
Ex:
select writetime(avatar) from avatars where id=1;
Br,
Gabi
On 3/14/13 3:12 PM, aaron morton wrote:
I'm not sure you can.
Sylvain / Michael? Is this possible?
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
Did the example work as it was presented in the README.txt ?
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 13/03/2013, at 11:31 AM, cscetbon@orange.com wrote:
Finally I've found the answer in
nice! Thanks Gabi!
On 14 March 2013 13:14, Gabriel Ciuloaica gciuloa...@gmail.com wrote:
You can.
Ex:
select writetime(avatar) from avatars where id=1;
Br,
Gabi
On 3/14/13 3:12 PM, aaron morton wrote:
I'm not sure you can.
Sylvain / Michael? Is this possible?
Cheers
documentation is here:
http://www.datastax.com/docs/1.2/cql_cli/using/writetime
Cheers,
Gabi
On 3/14/13 3:19 PM, Haithem Jarraya wrote:
nice! Thanks Gabi!
On 14 March 2013 13:14, Gabriel Ciuloaica gciuloa...@gmail.com
mailto:gciuloa...@gmail.com wrote:
You can.
Ex:
select
Because of this I have an unstable cluster and have no other choice than use
Amazon EC2 xLarge instances when we would rather use twice more EC2 Large
nodes.
m1.xlarge is a MUCH better choice than m1.large.
You get more ram and better IO and less steal. Using half as many m1.xlarge is
the
1. is this a nodetool bug? is there any way to propagate the
java.io.IOException back to nodetool?
The repair continues to work even if nodetool fails, it's a server side thing.
2. network problems on EC2, I'm shocked! are there recommended
network settings for EC2?
Streaming does not put
Should I raise a ticket since we are at least 3 having this issue from what I
saw in the mailing list ?
Sure, if you can come up with steps to reproduce the problem.
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
Using half as many m1.xlarge is the way to go.
OK, good to know.
Are you getting too much GC or running OOM ?
GC, it is always gc, I neved had OOM as far as I remember.
Are you using the default GC configuration ?
Yes, as I don't know a lot about it and think default should be fine.
Is
ERROR [RequestResponseStage:2] 2013-03-14 09:53:25,750
AbstractCassandraDaemon.java (line 135) Exception in thread
Thread[RequestResponseStage:2,5,main]
java.io.IOError: java.io.EOFException
at
@Aaron
You can try to reset the cluster ring state by doing a rolling restart
passing -Dcassandra.load_ring_state=false as a JVM param in
cassandra-env.sh
Now my can't restart properly. I stop restarting and last logged message is:
INFO [SSTableBatchOpen:1] 2013-03-14 14:36:09,813
How do I get my node to run through the 13k pending compaction tasks? I had to
use iptables to take the ring out of the cluster for now and he is my only node
still on STCS. In cassandra-cli, it shows LCS but on disk, I see a 36Gig
file(ie. Must be STCS still). How can I get the 13k pending
It is expensive?……personally, sorry, I don't really buy that since I spent less
than 400 bucks on 100 servers at amazon to play with for 1 or 2 hours or maybe
it was 8 hours…I can't remember AND you can use small instances for a test like
this. You can write EC2 scripts to startup a QA system
We have no such environment. It is expensive, we can't afford this for now.
We do have QA cluster, but before even trying the 1.1.0 - 1.1.9 / 1.2.1
upgrade on it (we were a bit undecided about the version ;-) ), I did
some experiments using ccm ( https://github.com/pcmanus/ccm ) on my
@Dean
It is expensive?
I was talking about a full time QA environment equal or similar to a prod
env.
I didn't thought about using a temp QA, and you are right I should have.
And sorry for not providing the detail on the rolling restart not
working….my bad
No problem, my point was just to
on my workstation with a 0.01% sample of production
Is there a simple way of getting that ?
On Cassandra level? Nope. I just had to prepare these data manualy
using software we develop on very small input. I understand that it
might not be so easy in all the use cases, as it was in my
Hi Dean,
I saw the same behavior when we switched from STCS to LCS on a couple of our
tables. Not sure why it doesn't proceed immediately (I pinged the list, but
didn't get any feedback). However, running nodetool compact keyspace table
got things moving for me.
-Mike
On Mar 14, 2013, at
Did you try restoring the snapshots you took and downgrading to 1.1.6
temporarily to get the node back online? That typically works fine. I feel
your pain. We are still waiting on 12 more nodes and until then we are barely
trying to make our cluster stay up and it is pretty much nearly maxed
One more warning (which I'm sure you know, but in case others see this),
nodetool compact does a major compaction for STS, and is in general, not
recommended for STS. I only ran it on the tables we've converted to LCS.
-Mike
On Mar 14, 2013, at 11:26 AM, Michael Theroux wrote:
Hi Dean,
I
Hi Aaron,
If you have the chance, could you expand on m1.xlarge being the much better
choice? We are going to need to make a choice of expanding from a 12 node -
24 node cluster using .large instances, vs. upgrading all instances to
m1.xlarge, soon and the justifications would be helpful
Did you restart the node? As I can tell compactions start a few minutes after
restarting. Did you see a file called $CFName.json ($CFName is your cf name) in
your data directory?
-Wei
- Original Message -
From: Dean Hiller dean.hil...@nrel.gov
To: user@cassandra.apache.org
Sent:
Ah, you are a lifesaver. I was so used to keeping the nodes always up.
That worked It is finally taking affect.
Thanks,
Dean
On 3/14/13 10:47 AM, Wei Zhu wz1...@yahoo.com wrote:
Did you restart the node? As I can tell compactions start a few minutes
after restarting. Did you see a file
No problem. Back to the old trick, doesn't work, restart:)
From: Hiller, Dean dean.hil...@nrel.gov
To: user@cassandra.apache.org user@cassandra.apache.org; Wei Zhu
wz1...@yahoo.com
Sent: Thursday, March 14, 2013 9:53 AM
Subject: Re: 13k pending compaction
Hi,
I have two column families, one keyed by UTF8Type (let's call it
StringFamily), the other by LongType (LongFamily). Both are stored in a
keyspace using the RandomPartitioner. I need to iterate over all columns in
both families, although order does not matter.
Iterating over StringFamily is
We are looking to use Cassandra for our persistent store. However, we have
requirements to support multiple platforms including Windows Server, Linux,
HP-UX, AIX and Solaris. I have searched the web and literally find nothing
about Cassandra running on some of these platforms. I don't even find
Hello,
If the live data centre disappears restoring the data from the backup is
going to take ages especially if the data is going from one data centre to
another, unless you have a high bandwidth connection between data centres
or you have a small amount of data.
Jabbar Azam
On 14 Mar 2013
On Thu, Mar 14, 2013 at 6:34 AM, aaron morton aa...@thelastpickle.com wrote:
1. is this a nodetool bug? is there any way to propagate the
java.io.IOException back to nodetool?
The repair continues to work even if nodetool fails, it's a server side thing.
2. network problems on EC2, I'm
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