update does not apply to any replica if consistency = ALL and one replica is down

2013-05-17 Thread Sergey Naumov
ra that it does not perform a write to any replica if consistency couldn't be satisfied? If so, then is it true for all cases, for example when returned error is "OperationalError: Request did not complete within rpc_timeout"? Thanks in advance, Sergey Naumov.

Re: How to add new DC to cluster when GossipingPropertyFileSnitch is used

2013-05-17 Thread Sergey Naumov
eason to restart all nodes. You can continue to use seed from > first DC - seed used for loading ring configuration(locations, token > ranges, etc), not data. > > On 05/17/2013 10:34 AM, Sergey Naumov wrote: > > If I understand you correctly, GossipingPropertyFileSnitch is useful for

Re: How to add new DC to cluster when GossipingPropertyFileSnitch is used

2013-05-17 Thread Sergey Naumov
t; Aaron Morton > Freelance Cassandra Consultant > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 15/05/2013, at 8:10 PM, Sergey Naumov wrote: > > > As far as I understand, GossipingPropertyFileSnitch supposed to provide > more flexibility in nod

Re: how to access data only on specific node

2013-05-17 Thread Sergey Naumov
slice queries. > > Cheers > > - > Aaron Morton > Freelance Cassandra Consultant > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 15/05/2013, at 6:51 PM, Sergey Naumov wrote: > > see that RR works, but sometimes number of

How to add new DC to cluster when GossipingPropertyFileSnitch is used

2013-05-15 Thread Sergey Naumov
arify this topic? Thanks in advance, Sergey Naumov.

Re: how to access data only on specific node

2013-05-14 Thread Sergey Naumov
row you need to use a > range scan and limit it by the token ranges assigned to the node. > > Cheers > > - > Aaron Morton > Freelance Cassandra Consultant > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 14/05/2013, at 1

how to access data only on specific node

2013-05-14 Thread Sergey Naumov
nt of specific node? Thanks in advance, Sergey Naumov.

nodetool status OWNS and multiple DCs

2013-04-30 Thread Sergey Naumov
91.78 KB 256 48,5% 93d3bdbf-8625-4e54-8c7c-087fbfe419f5 RAC1 I thought that each datacenter has 100% coverage of token range. What does the value in "Owns" field mean and how it affects a replication (for exaple, with replication factors DC1:1, DC2:2)? Thanks in advance, Sergey Naumov.

Fwd: Inter-DC communication optimization

2013-04-29 Thread Sergey Naumov
some optimizations for multiple DCs placed sequentially on a single link like DC1 <-> DC2 <-> ... <-> DCn? Thanks in advance, Sergey Naumov.