Re: Cluster scaling

2017-02-08 Thread Branislav Janosik -T (bjanosik - AAP3 INC at Cisco)
Janosik -T (bjanosik - AAP3 INC at Cisco)" , "user@cassandra.apache.org" Subject: Re: Cluster scaling Hi Branislav, I quickly went through the code and noticed that you are updating RF from code and expecting that Cassandra would automatically distribute replicas as per th

Re: Cluster scaling

2017-02-08 Thread Branislav Janosik -T (bjanosik - AAP3 INC at Cisco)
;user@cassandra.apache.org" Date: Wednesday, February 8, 2017 at 8:20 AM To: "user@cassandra.apache.org" Cc: "j.kes...@enercast.de" Subject: Re: Cluster scaling Hi Branislav, what is it you would expect? Some thoughts: Batches are often misunderstood, they work well

Re: Cluster scaling

2017-02-08 Thread Anuj Wadehra
Hi Branislav, I quickly went through the code and noticed that you are updating RF from code and expecting that Cassandra would automatically distribute replicas as per the new RF. I think this is not how it works. After updating the RF, you need to run repair on all the nodes to make sure that

Re: Cluster scaling

2017-02-08 Thread Jan Kesten
Hi Branislav, what is it you would expect? Some thoughts: Batches are often misunderstood, they work well only if they contain only one partition key - think of a batch of different sensor data to one key. If you group batches with many partition keys and/or do large batches this puts high l