Re: COMMERCIAL:Re: Cross-datacenter requests taking a very long time.

2015-04-02 Thread daemeon reiydelle
You might want to see what quorum is configured? I meant to ask that. *...* *“Life should not be a journey to the grave with the intention of arriving safely in apretty and well preserved body, but rather to skid in broadside in a cloud of smoke,thoroughly used up, totally worn out, an

Re: COMMERCIAL:Re: Cross-datacenter requests taking a very long time.

2015-04-02 Thread Andrew Vant
On Mar 31, 2015, at 4:59 PM, daemeon reiydelle wrote: > What is your replication factor? NetworkTopologyStrategy with replfactor: 2 in each DC. Someone else asked about the endpoint snitch I'm using; it's set to GossipingPropertyFileSnitch. > Any idea how much data has to be processed under t

Re: Cross-datacenter requests taking a very long time.

2015-04-01 Thread Bharatendra Boddu
What type of snitch are you using for cassandra.yaml: endpoint_snitch ? PropertyFileSnitch can improve performance. - bharat On Tue, Mar 31, 2015 at 1:59 PM, daemeon reiydelle wrote: > What is your replication factor? > > Any idea how much data has to be processed under the query? > > With that

Re: Cross-datacenter requests taking a very long time.

2015-03-31 Thread Robert Coli
On Tue, Mar 31, 2015 at 1:54 PM, Andrew Vant wrote: > I have a Cassandra 2.0.13 cluster with three datacenters, three nodes per > datacenter. If I open cqlsh and do a select with any consistency level that > crosses datacenters (e.g. QUORUM or ALL), it works, but takes 2+ minutes to > return. The

Re: Cross-datacenter requests taking a very long time.

2015-03-31 Thread daemeon reiydelle
What is your replication factor? Any idea how much data has to be processed under the query? With that few nodes (3) in each DC, even with replication=1, you are probably not getting much inter-node data transfer in a local quorum, until of course you do cross data centers and at least one full c

Cross-datacenter requests taking a very long time.

2015-03-31 Thread Andrew Vant
I have a Cassandra 2.0.13 cluster with three datacenters, three nodes per datacenter. If I open cqlsh and do a select with any consistency level that crosses datacenters (e.g. QUORUM or ALL), it works, but takes 2+ minutes to return. The same statement with consistency ONE or LOCAL_QUORUM is as