Re: Cassandra ring not behaving like a ring

2014-01-15 Thread Narendra Sharma
RF=3. On Jan 15, 2014 1:18 PM, "Andrey Ilinykh" wrote: > what is the RF? What does nodetool ring show? > > > On Wed, Jan 15, 2014 at 1:03 PM, Narendra Sharma < > narendra.sha...@gmail.com> wrote: > >> Sorry for the odd subject but something is wrong with our cassandra ring. >> We have a 9 node ri

Re: Cassandra ring not behaving like a ring

2014-01-15 Thread Andrey Ilinykh
what is the RF? What does nodetool ring show? On Wed, Jan 15, 2014 at 1:03 PM, Narendra Sharma wrote: > Sorry for the odd subject but something is wrong with our cassandra ring. > We have a 9 node ring as below. > > N1 - UP/NORMAL > N2 - UP/NORMAL > N3 - UP/NORMAL > N4 - UP/NORMAL > N5 - UP/NORM

Cassandra ring not behaving like a ring

2014-01-15 Thread Narendra Sharma
Sorry for the odd subject but something is wrong with our cassandra ring. We have a 9 node ring as below. N1 - UP/NORMAL N2 - UP/NORMAL N3 - UP/NORMAL N4 - UP/NORMAL N5 - UP/NORMAL N6 - UP/NORMAL N7 - UP/NORMAL N8 - UP/NORMAL N9 - UP/NORMAL Using random partitioner and simple snitch. Cassandra 1.

RE: Question about out of sync

2014-01-15 Thread Logendran, Dharsan (Dharsan)
Thanks Rob, It was quick. Dharsan From: Robert Coli [mailto:rc...@eventbrite.com] Sent: January-15-14 2:44 PM To: user@cassandra.apache.org Subject: Re: Question about out of sync On Wed, Jan 15, 2014 at 11:36 AM, Logendran, Dharsan (Dharsan) mailto:dharsan.logend...@alcatel-lucent.com>> wro

Re: Question about out of sync

2014-01-15 Thread Robert Coli
On Wed, Jan 15, 2014 at 11:36 AM, Logendran, Dharsan (Dharsan) < dharsan.logend...@alcatel-lucent.com> wrote: > Lets say we have a two nodes cluster(node_a and node_b) with the > replication factor of 2. It means both nodes(node_a and node_b) will have > the same amount of data replicated. If on

Re: Question about out of sync

2014-01-15 Thread Logendran, Dharsan (Dharsan)
Hi, I would like to get some answer for the following scenario. Lets say we have a two nodes cluster(node_a and node_b) with the replication factor of 2. It means both nodes(node_a and node_b) will have the same amount of data replicated. If one node(node_b) goes down and comes back. Is there

Re: Cassandra mad GC

2014-01-15 Thread Arya Goudarzi
It is not a good idea to change settings without identifying the root cause. Chances are what you did masked the problem a bit for you, but the problem is still there, isn't it? On Wed, Jan 15, 2014 at 1:11 AM, Dimetrio wrote: > I set G1 because GS started to work wrong(dropped messages) with s

Re: various Cassandra performance problems when CQL3 is really used

2014-01-15 Thread Ondřej Černoš
Hi, by the way, some of the issues are summarised here: https://issues.apache.org/jira/browse/CASSANDRA-6586 and here: https://issues.apache.org/jira/browse/CASSANDRA-6587. regards, ondrej cernos On Tue, Jan 14, 2014 at 9:48 PM, Ondřej Černoš wrote: > Hi, > > thanks for the answer and sorry

RE: Cassandra mad GC

2014-01-15 Thread Dimetrio
I set G1 because GS started to work wrong(dropped messages) with standard GC settings. In my opinion, Cassandra started to work more stable with G1 (it's getting less count of timeouts now) but it's not ideally yet. I just want cassandra to works fine. -- View this message in context: http://c

RE: Cassandra mad GC

2014-01-15 Thread Viktor Jevdokimov
Forgot to ask, what do you want to achieve by changing default GC settings? -Original Message- From: Viktor Jevdokimov [mailto:viktor.jevdoki...@adform.com] Sent: Wednesday, January 15, 2014 10:18 AM To: user@cassandra.apache.org Subject: RE: Cassandra mad GC Simply don't use G1 GC, it

RE: Cassandra mad GC

2014-01-15 Thread Viktor Jevdokimov
Simply don't use G1 GC, it will not be better on Cassandra than CMS, it could be worse. Best regards / Pagarbiai Viktor Jevdokimov Senior Developer Email: viktor.jevdoki...@adform.com Phone: +370 5 212 3063 Fax: +370 5 261 0453 J. Jasinskio 16C, LT-03163 Vilnius, Lithuania Disclaimer: The