Re: Data not fully replicated with 2 nodes and replication factor 2

2013-06-20 Thread Robert Coli
On Wed, Jun 19, 2013 at 4:35 PM, Wei Zhu wrote: > I was not aware of that. So we can avoid repair if there is no hardware > failure...I found a blog: > > http://www.datastax.com/dev/blog/modern-hinted-handoff Well... yes but no. First, I do not believe that hardware failure is required, I believ

Re: Data not fully replicated with 2 nodes and replication factor 2

2013-06-20 Thread Wei Zhu
ould I be filing a bug report, and if so what diagnostics are likely to be useful? Thanks, James Lee -Original Message- From: Robert Coli [mailto:rc...@eventbrite.com] Sent: 19 June 2013 20:59 To: user@cassandra.apache.org; Wei Zhu Subject: Re: Data not fully replicated with 2

RE: Data not fully replicated with 2 nodes and replication factor 2

2013-06-20 Thread James Lee
s are likely to be useful? Thanks, James Lee -Original Message- From: Robert Coli [mailto:rc...@eventbrite.com] Sent: 19 June 2013 20:59 To: user@cassandra.apache.org; Wei Zhu Subject: Re: Data not fully replicated with 2 nodes and replication factor 2 On Wed, Jun 19, 2013 at 11:43 AM,

Re: Data not fully replicated with 2 nodes and replication factor 2

2013-06-19 Thread Wei Zhu
ent: Wednesday, June 19, 2013 12:58:45 PM Subject: Re: Data not fully replicated with 2 nodes and replication factor 2 On Wed, Jun 19, 2013 at 11:43 AM, Wei Zhu wrote: > I think hints are only stored when the other node is down, not on the > dropped mutations. (Correct me if I am wrong, ac

Re: Data not fully replicated with 2 nodes and replication factor 2

2013-06-19 Thread Robert Coli
On Wed, Jun 19, 2013 at 11:43 AM, Wei Zhu wrote: > I think hints are only stored when the other node is down, not on the > dropped mutations. (Correct me if I am wrong, actually it's not a bad idea > to store hints for dropped mutations and replay them later?) This used to be the way it worked pr

Re: Data not fully replicated with 2 nodes and replication factor 2

2013-06-19 Thread Wei Zhu
u see that many dropped mutations. -Wei - Original Message - From: "James Lee" To: user@cassandra.apache.org Sent: Wednesday, June 19, 2013 2:22:39 AM Subject: RE: Data not fully replicated with 2 nodes and replication factor 2 The test tool I am using catches any except

RE: Data not fully replicated with 2 nodes and replication factor 2

2013-06-19 Thread James Lee
nt: 18 June 2013 19:45 To: user@cassandra.apache.org Subject: Re: Data not fully replicated with 2 nodes and replication factor 2 On Tue, Jun 18, 2013 at 11:36 AM, Wei Zhu wrote: > Cassandra doesn't do async replication like HBase does.You can run > nodetool repair to insure the consist

Re: Data not fully replicated with 2 nodes and replication factor 2

2013-06-18 Thread Robert Coli
On Tue, Jun 18, 2013 at 11:36 AM, Wei Zhu wrote: > Cassandra doesn't do async replication like HBase does.You can run nodetool > repair to insure the consistency. While this answer is true, it is somewhat non-responsive to the OP. If the OP didn't see timeout exception, the theoretical worst cas

Re: Data not fully replicated with 2 nodes and replication factor 2

2013-06-18 Thread Wei Zhu
. -Wei - Original Message - From: "James Lee" To: user@cassandra.apache.org Sent: Tuesday, June 18, 2013 5:02:53 AM Subject: Data not fully replicated with 2 nodes and replication factor 2 Hello, I’m seeing a strange problem with a 2-node Cassandra test deployment, where it see

Data not fully replicated with 2 nodes and replication factor 2

2013-06-18 Thread James Lee
Hello, I'm seeing a strange problem with a 2-node Cassandra test deployment, where it seems that data isn't being replicated among the nodes as I would expect. I suspect this may be a configuration issue of some kind, but have been unable to figure what I should change. The setup is as follow