When you add a new node, cassandra will pick the node that has the most data
then split its token. In this case the data distribution among all nodes
become uneven. What's the right strategy/steps to rebalance the node load
after adding new nodes? Here's one example: I have a cluster of node A, B,
Hello,
Is there any way to expire keys/rows in cassandra based on their
last-modification timestamp (if such timestamp exists)? It will be ideal
place to modify if cassandra has a task/thread that periodically goes
through all keys in a node. GC deletion marker?
Without this kind of expiration-fe
On Thu, Feb 11, 2010 at 3:29 PM, B. Todd Burruss wrote:
> when using rack aware, RF=3, W=QUORUM ... does a write block until
> response from both data centers?
Quorum of 3 means 2, so it will block for first 2 replies, which
usually won't include the other DC.
BUT, remember it's asymmetrical.
S
when using rack aware, RF=3, W=QUORUM ... does a write block until
response from both data centers? and if so is there a setting to make
the write to the "second" data center async?
On Thu, 2010-02-11 at 12:12 -0800, Jonathan Ellis wrote:
> On Thu, Feb 11, 2010 at 1:53 PM, Weijun Li wrote:
> >
cat bin/nodetool will show you what class is being invoked -- look for
the $JAVA invocation
On Thu, Feb 11, 2010 at 2:43 PM, Weijun Li wrote:
> That works! Thanks gentlemen! Is there a manual for nodeprobe? Or could you
> please point to me where is the code for handling these commands?
>
> -Weij
That works! Thanks gentlemen! Is there a manual for nodeprobe? Or could you
please point to me where is the code for handling these commands?
-Weijun
On Thu, Feb 11, 2010 at 12:01 PM, Chris Goffinet wrote:
> "nodeprobe flush "
>
> On Thu, Feb 11, 2010 at 11:56 AM, Weijun Li wrote:
>
>> Hello,
On Thu, Feb 11, 2010 at 1:53 PM, Weijun Li wrote:
> Hello,
>
> I have a testing cluster with: A (dc1), B (dc1), C(dc2), D(dc2). The
> replication factor is 2 so I assume each DC will have a complete copy of the
> data. Also I'm using PropertyFileEndPointSnitch with rack.properties for the
> dc and
"nodeprobe flush "
On Thu, Feb 11, 2010 at 11:56 AM, Weijun Li wrote:
> Hello,
>
> I tried to run "nodeprobe flush" but it display the usage info without
> doing anything? What are the list of supported command for nodeprobe?
>
> Thanks,
> -Weijun
>
--
-Chris
You have to specify the keyspace.
For example sh nodeprobe -host hostname flush Keyspace1
On Thu, Feb 11, 2010 at 11:56 AM, Weijun Li wrote:
> Hello,
>
> I tried to run "nodeprobe flush" but it display the usage info without doing
> anything? What are the list of supported command for nodeprobe?
Hello,
I tried to run "nodeprobe flush" but it display the usage info without doing
anything? What are the list of supported command for nodeprobe?
Thanks,
-Weijun
Hello,
I have a testing cluster with: A (dc1), B (dc1), C(dc2), D(dc2). The
replication factor is 2 so I assume each DC will have a complete copy of the
data. Also I'm using PropertyFileEndPointSnitch with rack.properties for the
dc and rack settings.
So, what's the steps to add another datacente
What version are you on these days? :)
On Thu, Feb 11, 2010 at 12:11 PM, Anthony Molinaro
wrote:
> Hi,
>
> I've been having nodes failing recently with OOM exceptions (not sure
> why, but we have had an increase in traffic so that could be a cause).
> Most nodes have restarted fine, one node how
Hi,
I've been having nodes failing recently with OOM exceptions (not sure
why, but we have had an increase in traffic so that could be a cause).
Most nodes have restarted fine, one node however, has been having problems
restarting. It was failing with
java.lang.OutOfMemoryError: Java heap spac
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