Re: Re: why cassanra max is 20000/s on a node ?

2015-11-05 Thread Venkatesh Arivazhagan
I agree with Tyler! Have you tries increasing the the client threads from 5 to a higher number? On Nov 5, 2015 6:46 PM, "郝加来" wrote: > right , > but wo want a node 's throught is above million , so if the system hava > fifty table , a single table can achive 2/s . > > > --

Re: Huge amounts of hinted handoffs for counter table

2015-09-23 Thread Venkatesh Arivazhagan
What is your replication factor and write consistency? :) On Sep 23, 2015 7:28 AM, "Björn Hachmann" wrote: > Today I realized that one of the nodes in our Cassandra cluster (2.1.7) is > storing a lot of hints (>80GB) and I fail to see a convincing way to deal > with them. > > From the system.log:

Re: ScyllaDB, a new open source, Cassandra-compatible NoSQL

2015-09-22 Thread Venkatesh Arivazhagan
I came across this article: zdnet.com/article/kvm-creators-open-source-fast-cassandra-drop-in-replacement-scylla/ Tzach, I would love to know/understand moree about ScyllaDB too. Also the benchmark seems to have only 1 DB Server. Do you have benchmark numbers where more than 1 DB servers were invo

Re: Help with tombstones and compaction

2015-09-22 Thread Venkatesh Arivazhagan
pply a mutation (write). > > That timestamp is the one returned by WRITETIME(), and visible in > sstablemetadata – it’s not visible in the schema directly. > > Failing to have the proper unit (milliseconds vs microseconds) could > certainly cause confusion. > > > > From: Ven

Re: Help with tombstones and compaction

2015-09-21 Thread Venkatesh Arivazhagan
> 2.1.9) > > > From: Venkatesh Arivazhagan > Reply-To: "user@cassandra.apache.org" > Date: Sunday, September 20, 2015 at 2:48 PM > To: "user@cassandra.apache.org" > Subject: Help with tombstones and compaction > > Hi Guys, > > I have a Cassa