Re-adding a dead node in Cassandra 3.9

2018-10-25 Thread Ashish Pandey
Hi, Our Cassandra cluster uses Cassandra version 3.9. We experienced an issue for which documentation doesn't seem clear and I'm hoping someone experienced the same issue and we could use some help. One of Cassandra node went down and now the host needs to be rebuilt and OS needs to be reinstalle

Re: Cassandra Compactions Speed increase

2017-09-17 Thread Ashish Pandey
7;s a hundred or a > thousand things to tune, and you've given almost no info for us to tell you > which to look at first > > > -- > Jeff Jirsa > > > > On Sep 15, 2017, at 9:29 PM, Ashish Pandey wrote: > > > > I haven't throttled cassandra com

Re: Cassandra Compactions Speed increase

2017-09-15 Thread Ashish Pandey
one time, then reading, then deleting them > all, or is it a constant stream of writes and reads? > > > -- > Jeff Jirsa > > > > On Sep 15, 2017, at 8:40 PM, Ashish Pandey wrote: > > > > Hi All, > > > > We are using cassandra 3.9 and experiencing re

Cassandra Compactions Speed increase

2017-09-15 Thread Ashish Pandey
Hi All, We are using cassandra 3.9 and experiencing read latency issues. We are using LeveledCompactionStrategy after experiencing read latency issue with SizeTieredCompactionStrategy. For our use case, table keys are getting batch updated and batch delete of column values for keys. We almost wri

C* data validation in new DC

2016-08-02 Thread Ashish Pandey
Hi All We are running 2.0.14 and recently added new cassandra datacenter to the existing datacenter. Wondering, if there is a recommended way in cassandra to check data completely sync'ed in new datacenter other than *nodetool cfstats *which just gives estimate of number of keys Thanks in advanc