Data Corruption

[Waqas Badar <wa...@panasiangroup.com>]

We are observing a strange behavior of Cassandra. We have a ring of two
nodes. When we inserts data in cassandra then old data after some
entries get vanished. Please note that it is not a data loss, as when we
move that data to separate node then all data is shown.  We are using
Cassandra 0.6.3 and Ubuntu Server 8.10

Re: Data Corruption

[Waqas Badar <wa...@panasiangroup.com>]

In fact, on one node hard disk filled up so thats why we have to shift
cassandra manually on another machine. Can you please tell any work
around to restore data?

On Thu, 2010-08-19 at 09:56 -0500, Jonathan Ellis wrote:

> You're moving data around manually?  That sounds like a good way to
> confuse Cassandra's replication.
> 
> On Thu, Aug 19, 2010 at 4:33 AM, Waqas Badar
> <wa...@panasiangroup.com> wrote:
> > We are observing a strange behavior of Cassandra. We have a ring of two
> > nodes. When we inserts data in cassandra then old data after some entries
> > get vanished. Please note that it is not a data loss, as when we move that
> > data to separate node then all data is shown.  We are using Cassandra 0.6.3
> > and Ubuntu Server 8.10
> 
> 
> 

Re: Data Corruption

[Jonathan Ellis <jb...@gmail.com>]

You're moving data around manually?  That sounds like a good way to
confuse Cassandra's replication.

On Thu, Aug 19, 2010 at 4:33 AM, Waqas Badar
<wa...@panasiangroup.com> wrote:
> We are observing a strange behavior of Cassandra. We have a ring of two
> nodes. When we inserts data in cassandra then old data after some entries
> get vanished. Please note that it is not a data loss, as when we move that
> data to separate node then all data is shown.  We are using Cassandra 0.6.3
> and Ubuntu Server 8.10



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com