Hi Vikram,
Running a monitor somewhere other than on Cassandra node itself hmm
then you'd miss out on JVM metrics, OS metrics, ability to do transaction
tracing, on demand profiling, etc. which are all nice things to have when
you are troubleshooting issues, performance, doing stress tests
Off-topic to the Cassandra list, but corosync/pacemaker comes to mind for
automatic service switchover between nodes.
For monitoring and alerting, there's almost too many to mention...
On Tue, Aug 18, 2015 at 2:45 PM, Vikram Kone wrote:
> Hi John,
> I have posted the same Q on azkaban googl
Hi John,
I have posted the same Q on azkaban google group but there is no response
so far :(
If i want to do the old school way of monitor, alert and start the process
somewhere else..how can I do this? Are there some ready made tools to do
this kind of general purpose monitoring and alerting for s
The MySQL is there just to save the state of things. I suppose it very
lightweight. Why not just install mysql on one of the nodes or a VM
somewhere.
On Sun, Aug 16, 2015 at 3:39 PM, John Wong wrote:
> Sorry i meant integration with Cassandra (based on the docs by default it
> suggests MySQL)
>
Sorry i meant integration with Cassandra (based on the docs by default it
suggests MySQL)
On Sunday, August 16, 2015, John Wong wrote:
> There is no leader in cassandra. I suggest you ask Azkaban community about
> intgteation with Azkaban and Azkaban HA.
>
> On Sunday, August 16, 2015, Vikram Ko
There is no leader in cassandra. I suggest you ask Azkaban community about
intgteation with Azkaban and Azkaban HA.
On Sunday, August 16, 2015, Vikram Kone wrote:
> Can't we use zoo keeper for leader election in Cassandra and based on who
> is leader ..run azkaban or any app instance for that ma
Can't we use zoo keeper for leader election in Cassandra and based on who is
leader ..run azkaban or any app instance for that matter on that Cassandra
server. I'm thinking that I can copy the applocation folder to all nodes and
then determine which one to run using zookeeper. Is that possible ?
Hi
I am not familiar with Azkaban and probably a better question to the
Azkaban community IMO. But there seems to be two modes (
http://azkaban.github.io/azkaban/docs/2.5/) one is solo and one is
two-server mode, but either way I think still SPOF? If there is no
election, just based on process, my
