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2020-07-14 Thread srinivasarao daruna
Thank You, Regards, Srini

Re: Extending Cassandra on AWS from single Region to Multi-Region

2018-08-10 Thread srinivasarao daruna
Hey All, Any info on this topic.? Thank You, Regards, Srini On Wed, Aug 8, 2018, 9:46 PM srinivasarao daruna wrote: > Hi All, > > We have built Cassandra on AWS EC2 instances. Initially when creating > cluster we have not considered multi-region deployment and we have used AWS

Extending Cassandra on AWS from single Region to Multi-Region

2018-08-08 Thread srinivasarao daruna
Hi All, We have built Cassandra on AWS EC2 instances. Initially when creating cluster we have not considered multi-region deployment and we have used AWS EC2Snitch. We have used EBS Volumes to save our data and each of those disks were filled around 350G. We want to extend it to Multi Region and

Impact of Write without consistency level and mutation failures on reads and cluster

2017-06-15 Thread srinivasarao daruna
Hi, Recently one of our spark job had missed cassandra consistency property and number of concurrent writes property. Due to that, some of mutations are failed when we checked tpstats. Also, we observed readtimeouts are occurring with not only the table that the job inserts, but also from other

Re: Unsuccessful back-up and restore with differing counts

2017-05-13 Thread srinivasarao daruna
nathan Haddad <j...@jonhaddad.com> wrote: Did you create the nodes with the same tokens? On Sat, May 13, 2017 at 8:44 AM srinivasarao daruna <sree.srin...@gmail.com> wrote: > Hi, > > We have a cassandra cluster built on Apache Cassandra 3.9 with 6 nodes and > RF = 3

Fwd: Unsuccessful back-up and restore with differing counts

2017-05-13 Thread srinivasarao daruna
Hi, We have a cassandra cluster built on Apache Cassandra 3.9 with 6 nodes and RF = 3. As part of re-building the cluster, we are testing the backup and restore strategy. We took the snapshot and uploaded the files to S3 and data has been saved the data with folder names (backup_folder1 - 6 for

Unsuccessful back-up and restore with differing counts

2017-05-13 Thread srinivasarao daruna
Hi, We have a cassandra cluster built on Apache Cassandra 3.9 with 6 nodes and RF = 3. As part of re-building the cluster, we are testing the backup and restore strategy. We took the snapshot and uploaded the files to S3 and data has been saved the data with folder names (backup_folder1 - 6 for

Re: Issue with Cassandra consistency in results

2017-03-21 Thread srinivasarao daruna
> sent from my mobile > Daemeon Reiydelle > skype daemeon.c.m.reiydelle > USA 415.501.0198 > > On Mar 16, 2017 3:25 PM, "srinivasarao daruna" <sree.srin...@gmail.com> > wrote: > >> Hi reiydelle, >> >> I cannot confirm the range as the volume

Re: Issue with Cassandra consistency in results

2017-03-16 Thread srinivasarao daruna
gt; arvydas.jonuso...@gmail.com> wrote: >> >>> If the data was written at ONE, consistency is not guaranteed. ..but >>> considering you just restored the cluster, there's a good chance something >>> else is off. >>> >>> On Thu, Mar 16, 2017 at

Re: Issue with Cassandra consistency in results

2017-03-16 Thread srinivasarao daruna
ounts I'm afraid you need to use SERIAL or LOCAL_SERIAL (for in DC only accuracy) On Thu, Mar 16, 2017 at 1:04 PM, srinivasarao daruna <sree.srin...@gmail.com > wrote: > Replication strategy is SimpleReplicationStrategy. > > Smith is : EC2 snitch. As we deployed cluster on EC2 insta

Re: Issue with Cassandra consistency in results

2017-03-16 Thread srinivasarao daruna
succeeds on node A a timestamp 1, B succeeds at timestamp 2 Read succeeds on node B and C at timestamp 1 If you need fully race condition free counts I'm afraid you need to use SERIAL or LOCAL_SERIAL (for in DC only accuracy) On Thu, Mar 16, 2017 at 1:04 PM, srinivasarao daruna <sree.srin..

Re: Issue with Cassandra consistency in results

2017-03-16 Thread srinivasarao daruna
his should cause the correct results to be returned. You'll need to run a repair to fix the inconsistencies. If all the data is actually there, you might have one or several nodes that aren't identifying the correct replicas. Arvydas On Thu, Mar 16, 2017 at 5:31 PM, srinivasarao daruna <sree.srin..

Issue with Cassandra consistency in results

2017-03-16 Thread srinivasarao daruna
Hi Team, We are struggling with a problem related to cassandra counts, after backup and restore of the cluster. Aaron Morton has suggested to send this to user list, so some one of the list will be able to help me. We are have a rest api to talk to cassandra and one of our query which fetches