What are your hardware specs? Where are you running the cluster? Is every node in the same physical datacenter? What command are you using to run stress?
> On Apr 17, 2017, at 9:57 AM, Akshay Suresh <akshay.sur...@unotechsoft.com> > wrote: > > Hi > > I have not done much. Just created a schema with SimpleStrategy and a > replication factor of 3. > Then I created a yaml file > Now I am running the cassandra stress tool invoking the yaml file - with > 10,000 records ( no warmup ) with 10 concurrent threads. I am just running > writes ( no reads ) > > > When I keep running this script again and again eventually my nodes start > going down and I start getting timeouts and out of memory errors. > > > > On Mon, Apr 17, 2017 at 9:23 PM, Hannu Kröger <hkro...@gmail.com > <mailto:hkro...@gmail.com>> wrote: > It would help to know what kind queries are slow. > > Hannu > >> On 17 Apr 2017, at 18:42, Akshay Suresh <akshay.sur...@unotechsoft.com >> <mailto:akshay.sur...@unotechsoft.com>> wrote: >> >> Hi >> >> I have set up a cassandra cluster of 8 nodes. >> >> I am using Apache Cassandra 3.9 >> >> While using cassandra-stress tool for load testing, I am getting really slow >> writes ( low upto few 10-20 writes per second ) along with frequent timeouts >> and out of heap space errors. >> >> Kindly let me know how do I resolve this issue. >> >> >> Disclaimer : The contents of this e-mail and attachment(s) thereto are >> confidential and intended for the named recipient(s) only. It shall not >> attach any liability on the originator or Unotech Software Pvt. Ltd. or its >> affiliates. Any views or opinions presented in this email are solely those >> of the author and may not necessarily reflect the opinions of Unotech >> Software Pvt. Ltd. or its affiliates. Any form of reproduction, >> dissemination, copying, disclosure, modification, distribution and / or >> publication of this message without the prior written consent of the author >> of this e-mail is strictly prohibited. If you have received this email in >> error please delete it and notify the sender immediately. > > > > > -- > Regards, > > > Akshay Suresh > Unotech Software Pvt. Ltd > <http://www.unotechsoft.com/> > M : +91 99309 80509 > O : +91 (22) 2687 9402 > A : D Wing, 7th floor, 32 Corporate Avenue, Off Mahakali Caves > Road, Andheri (E), Mumbai, 400093 > W : www.unotechsoft.com <http://www.unotechsoft.com/> > Disclaimer : The contents of this e-mail and attachment(s) thereto are > confidential and intended for the named recipient(s) only. It shall not > attach any liability on the originator or Unotech Software Pvt. Ltd. or its > affiliates. Any views or opinions presented in this email are solely those of > the author and may not necessarily reflect the opinions of Unotech Software > Pvt. Ltd. or its affiliates. Any form of reproduction, dissemination, > copying, disclosure, modification, distribution and / or publication of this > message without the prior written consent of the author of this e-mail is > strictly prohibited. If you have received this email in error please delete > it and notify the sender immediately.
