By the way, nice comment on the patch "// do not pass go, do not collect 200 dollars, just gtfo", it looks like you have some fun while developping Cassandra @Datastax ;)


2011/12/9 Alain RODRIGUEZ <>
Hi, I'm running a 4 nodes Cassandra cluster, and I'm facing the same problem (node not present on nodetool ring, but unreachable on CLI describe cluster...). I'm currently running version 1.0.2, but I have update from 0.8.x, the problem may exist since a while, I don't really know. I can't stop my cluster, but I don't know how to apply the patch to repair the consequences of this bug by removing definitely this node.

Can someone tell me the way to proceed to apply a patch and call this java function ?

Thank you,


2011/11/18 Giannis Neokleous <>
Thanks for the info Brandon. I'll do the upgrade once 0.8.8 is released.

On Wed, Nov 16, 2011 at 2:43 PM, Brandon Williams <> wrote:
On Mon, Nov 14, 2011 at 2:49 PM, Giannis Neokleous
<> wrote:
> Hello everyone,
> We're using the bulk loader to load data every day to Cassandra. The
> machines that use the bulkloader are diferent every day so their IP
> addresses change. When I do "describe cluster" i see all the unreachable
> nodes that keep piling up for the past few days. Is there a way to remove
> those IP addresses without terminating the whole cluster at the same time
> and restarting it?
> The unreachable nodes cause issues when we want to make schema changes to
> all the nodes or when we want to truncate a CF.
> Any suggestions?

It sounds like you're running into so the first step
would be to upgrade to a version that has it fixed.

Unfortunately, this won't solve the problem, just prevent it from
happening in the future.  To remove the old nodes, you can apply on one node and
call the JMX method for the unreachable endpoints.