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!

Re: Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread Jack Krupansky
ing your memory, it will be used for OS caching and > you can get even better performance.. > > Thanks > Anuj > > Sent from Yahoo Mail on Android > <https://overview.mail.yahoo.com/mobile/?.src=Android> > ------ > *From*:"Jack Krupansky"

Re:Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread xutom
y about wasting your memory, it will be used for OS caching and you can get even better performance.. Thanks Anuj Sent from Yahoo Mail on Android | From:"Jack Krupansky" Date:Tue, 8 Dec, 2015 at 8:07 pm Subject:Re: Re: Re: Cassandra Tuning Issue Great! Make sure to inform the C* ema

Re: Re: Re: Cassandra Tuning Issue

2015-12-08 Thread Anuj Wadehra
/cassandra/install/installRecommendSettings.html Dont worry about wasting your memory, it will be used for OS caching and you can get even better performance.. Thanks Anuj Sent from Yahoo Mail on Android From:"Jack Krupansky" Date:Tue, 8 Dec, 2015 at 8:07 pm Subject:Re: Re: Re: Cassan

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: Cassandra Tuning Issue

2015-12-06 Thread Jack Krupansky
If you combine inserts for multiple partition keys in the same batch you negate most of the effect of token-aware routing. It's best to insert only rows with the same partition key in a single batch. You also need to set the partition key for routing for the batch. Also, RF=2 is not recommended si