nt: Friday, February 1, 2013 1:56 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
Did the node list itself as a seed node in cassandra.yaml? Unless something has
changed, a node that considers itself a seed will not auto bootstrap. Although
I haven't tried it, I think ru
have at least 400G for the
> HD...Although SSD is cheap now, still hard to convince the management.
> three replicates + double the Disk for compaction? that is 6 times of the
> real data size!
>
> Sorry for the long email. Any suggestion or advice?
>
> Thanks.
> -Wei
>
>
es of the real data
> size!
>
> Sorry for the long email. Any suggestion or advice?
>
> Thanks.
> -Wei
>
> From: "aaron morton"
> To: "Cassandra User"
> Sent: Tuesday, January 29, 2013 12:59:42 PM
> Subject: Re: Cassandra pending compactio
s.
-Wei
- Original Message -
From: "aaron morton"
To: "Cassandra User"
Sent: Tuesday, January 29, 2013 12:59:42 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
* Will try it tomorrow. Do I need to restart server to change the log level?
Yo
riginal Message -----
> From: "aaron morton"
> To: user@cassandra.apache.org
> Sent: Monday, January 28, 2013 11:31:42 PM
> Subject: Re: Cassandra pending compaction tasks keeps increasing
>
>
>
>
>
>
>
> * Why nodetool repair increases the dat
ailable ?
* Will try it tomorrow. Do I need to restart server to change the log level?
-Wei
- Original Message -
From: "aaron morton"
To: user@cassandra.apache.org
Sent: Monday, January 28, 2013 11:31:42 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
We use default SSTable size as 5M, Will increase the size of SSTable
> help? What will happen if I change the setting after the data is loaded.
>
> Any suggestion is very much appreciated.
>
> -Wei
>
> - Original Message -
>
> From: "Wei Zhu"
> To:
n Mon, Jan 28, 2013 at 12:16 PM, Wei Zhu wrote:
> Any thoughts?
>
> Thanks.
> -Wei
>
> - Original Message -
> From: "Wei Zhu"
> To: user@cassandra.apache.org
> Sent: Friday, January 25, 2013 10:09:37 PM
> Subject: Re: Cassandra pending compaction
Monday, January 28, 2013 11:16:47 AM
Subject: Re: Cassandra pending compaction tasks keeps increasing
Any thoughts?
Thanks.
-Wei
- Original Message -
From: "Wei Zhu"
To: user@cassandra.apache.org
Sent: Friday, January 25, 2013 10:09:37 PM
Subject: Re: Cassandra pendi
Any thoughts?
Thanks.
-Wei
- Original Message -
From: "Wei Zhu"
To: user@cassandra.apache.org
Sent: Friday, January 25, 2013 10:09:37 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
To recap the problem,
1.1.6 on SSD, 5 nodes, RF = 3, one CF only.
After
uot;
To: user@cassandra.apache.org
Sent: Thursday, January 24, 2013 11:46:04 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
I believe I am running into this one:
https://issues.apache.org/jira/browse/CASSANDRA-4765
By the way, I am using 1.1.6 (I though I was using 1.1.7)
4, 2013 11:18:59 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
Thanks Derek,
in the cassandra-env.sh, it says
# reduce the per-thread stack size to minimize the impact
.
Thanks.
-Wei
- Original Message -
From: "Derek Williams"
To: user@cassandra.apache.org, "Wei Zhu"
Sent: Thursday, January 24, 2013 11:06:00 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
Increasing the stack size in cassandra-env.sh should help yo
e -
> From: "Wei Zhu"
> To: user@cassandra.apache.org
> Sent: Thursday, January 24, 2013 10:55:07 PM
> Subject: Re: Cassandra pending compaction tasks keeps increasing
>
> Do you mean 90% of the reads should come from 1 SSTable?
>
> By the way, after I finished the
y, January 24, 2013 10:55:07 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
Do you mean 90% of the reads should come from 1 SSTable?
By the way, after I finished the data migrating, I ran nodetool repair -pr on
one of the nodes. Before nodetool repair, all the nodes have the
iginal Message -
From: "aaron morton"
To: user@cassandra.apache.org
Sent: Wednesday, January 23, 2013 2:40:45 PM
Subject: Re: Cassandra pending compaction tasks keeps increasing
The histogram does not look right to me, too many SSTables for an LCS CF.
It's a symptom no a cause. I
ding transactions queueing up.
>
> Jc
>
> From: Wei Zhu
> Reply-To: "user@cassandra.apache.org" , Wei Zhu
>
> Date: Tuesday, January 22, 2013 12:56 PM
> To: "user@cassandra.apache.org"
> Subject: Re: Cassandra pending compaction tasks keeps increa
lt;mailto:user@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>, Wei Zhu
mailto:wz1...@yahoo.com>>
Date: Tuesday, January 22, 2013 12:56 PM
To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>"
mailto:user@cassandra.apache.org>>
Subject: Re: Cas
put, we set ours high for SSD. You
>usually wont use it all because the compactions are usually single threaded.
>Dstat will help you measure this.
>
>
>I hope this helps,
>jc
>
>From: Wei Zhu
>Reply-To: "user@cassandra.apache.org" , Wei Zhu
>
>Date: Frid
igh for SSD. You
> usually wont use it all because the compactions are usually single threaded.
> Dstat will help you measure this.
>
> I hope this helps,
> jc
>
> From: Wei Zhu
> Reply-To: "user@cassandra.apache.org" , Wei Zhu
>
> Date: Friday, J
o: Cassandr usergroup
mailto:user@cassandra.apache.org>>
Subject: Cassandra pending compaction tasks keeps increasing
Hi,
When I run nodetool compactionstats
I see the number of pending tasks keep going up steadily.
I tried to increase the compactionthroughput, by using
nodetool setcompactio
Hi,
When I run nodetool compactionstats
I see the number of pending tasks keep going up steadily.
I tried to increase the compactionthroughput, by using
nodetool setcompactionthroughput
I even tried the extreme to set it to 0 to disable the throttling.
I checked iostats and we have SSD for
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