Re:Re: Re: Cassandra Tuning Issue

2015-12-08 Thread xutom
Dear Jack, Thank you very much! Now we have much better performance when we insert the same partition keys in the same batch. jerry At 2015-12-07 13:08:31, "Jack Krupansky" wrote: If you combine inserts for multiple partition keys in the same batch you negate most of the effect of tok

Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread Jack Krupansky
Great! Make sure to inform the C* email list as well so that others know. -- Jack Krupansky On Tue, Dec 8, 2015 at 7:44 AM, xutom wrote: > > > Dear Jack, > Thank you very much! Now we have much better performance when we > insert the same partition keys in the same batch. > > jerry > > At 2

Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread Anuj Wadehra
Hi Jerry, Its great that you got performance improvement. Moreover, I agree with what Graham said. I think that you are using extremely large Heaps with CMS and that too in very odd ratio..Having 40G for new gen and leaving only 20G old gen seems unreasonable..Its hard to believe that you are

[RELEASE] Apache Cassandra 3.0.1 released

2015-12-08 Thread Jake Luciani
The Cassandra team is pleased to announce the release of Apache Cassandra version 3.0.1. Apache Cassandra is a fully distributed database. It is the right choice when you need scalability and high availability without compromising performance. http://cassandra.apache.org/ Downloads of source an

[RELEASE] Apache Cassandra 3.1 released

2015-12-08 Thread Jake Luciani
The Cassandra team is pleased to announce the release of Apache Cassandra version 3.1. This is the first release from our new Tick-Tock release process[4]. It contains only bugfixes on the 3.0 release. Apache Cassandra is a fully distributed database. It is the right choice when you need scalabili

Re:Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread xutom
Hi Anuj, Thanks! I will retry now! By the way, how to " inform the C* email list as well so that others know" as Jack said? I am sorry I have not do that yet. Thanks jerry At 2015-12-09 01:09:07, "Anuj Wadehra" wrote: | Hi Jerry, Its great that you got performance improvement. Moreover, I a

Re: Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread Jack Krupansky
Sorry, Jerry, my mistake - I mistakenly thought you had emailed me directly! You had already informed the email list. -- Jack Krupansky On Tue, Dec 8, 2015 at 8:58 PM, xutom wrote: > Hi Anuj, > Thanks! I will retry now! > By the way, how to " inform the C* email list as well so that others know

Re: Re:Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread Anuj Wadehra
You just need to send mail to user@cassandra.apache.org ..Everyone on mailing list including you will get the mail.. Anuj Sent from Yahoo Mail on Android From:"xutom" Date:Wed, 9 Dec, 2015 at 7:28 am Subject:Re:Re: Re: Re: Cassandra Tuning Issue Hi Anuj, Thanks! I will retry now! By the way,