AbstractReplicationStrategy.getWriteEndpoints is where bootstrapping
nodes get added as write destinations.
On Tue, May 4, 2010 at 6:02 PM, Bill Hastings wrote:
> Hi
>
> I did some more looking. It looks like on bootstrap the token gets added to
> the bootstrapTokens list. However there is no cha
Hi
I did some more looking. It looks like on bootstrap the token gets added to
the bootstrapTokens list. However there is no change to the
tokenToEndPointMap. So how do writes make it to the new node. It is only
when bootstrap is complete are the tokens removed from bootstrapTokens list
added to t
http://wiki.apache.org/cassandra/FAQ#no_keyspaces
On Tue, May 4, 2010 at 4:42 PM, Frank Du wrote:
> Hey All,
>
> I updated to latest trunk code, and ran 'bin/cassandra -f'. A warning
> message was spitted out:
>
> WARN 16:42:33, 729 Couldn't detect any schema definitions in local storage.
> I hop
On Tue, May 4, 2010 at 4:42 PM, Frank Du wrote:
> Hey All,
>
> I updated to latest trunk code, and ran 'bin/cassandra -f'. A warning
> message was spitted out:
>
> WARN 16:42:33, 729 Couldn't detect any schema definitions in local storage.
> I hope you've got a plan.
>
> There are only system and
Hey All,
I updated to latest trunk code, and ran 'bin/cassandra -f'. A warning
message was spitted out:
WARN 16:42:33, 729 Couldn't detect any schema definitions in local storage.
I hope you've got a plan.
There are only system and definitions when I trying to show keyspaces. The
cassandra.yaml
One thing to note about the solution that we created with mondemand, it
requires no changes to cassandra, and it works on any long running java
process with jmx. We basically have a few pieces
1. a command line JMX client which does 2 things
a. dumps a config file with all available jmx stats
On Tue, May 4, 2010 at 13:05, Ran Tavory wrote:
> IMO there's a good case for both external monitoring tools and per-host
> minimalistic interface but I see Eric's point that every piece of code will
> require its maintenance. A cluster monitoring tool is definitely required.
> An embedded one has
Of course, it would very nice to have some tool out of the box.
For the 2nd point, an external tool can be fast enough to know what's
happening now. There could be a cluster monitoring part, and a
per-node monitoring interface, from the same tool. That was my goal at
least...
On Tue, May 4, 2010
IMO there's a good case for both external monitoring tools and per-host
minimalistic interface but I see Eric's point that every piece of code will
require its maintenance. A cluster monitoring tool is definitely required.
An embedded one has two nice properties:
1. It works out of the box
2. If I
Anthony, very nice to see this, this is exactly the kind of thing I've
started on a web UI!
I'll try to get more things done this week and post it somewhere for
those who are interested.
On Tue, May 4, 2010 at 2:49 PM, Anthony Molinaro
wrote:
> And just to show you what the dashboards look like
And just to show you what the dashboards look like here's a couple
of screen shots
Jconsole like page of jvm stats
http://herbie.ddv.com/~anthonym/mondemand-2.png
Cassandra specific memtable stats
http://herbie.ddv.com/~anthonym/mondemand-1.png
-Anthony
On Tue, May 04, 2010 at 10:03:52AM -0700,
On 5/4/2010 7:21 AM, Eric Evans wrote:
On Tue, 2010-05-04 at 08:41 +0300, Ran Tavory wrote:
How about the following compromise:
Add a simple web server to each node with only one simple servlet that
simply spits out all JMX stats on one page. Not fancy, no graphs,
simply the same values you can
Hi! I was working on a separate monitoring client, and not a per-node approach.
At the time, we talked on having a single server that queries the
nodes on a Cassandra cluster.
There's some discussions on the list, about technologies being used,
etc. I was pretty busy these last weeks (and some da
On Tue, 2010-05-04 at 08:41 +0300, Ran Tavory wrote:
> How about the following compromise:
> Add a simple web server to each node with only one simple servlet that
> simply spits out all JMX stats on one page. Not fancy, no graphs,
> simply the same values you can get from jconsole, but on a web pa
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