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HBase >> mail # user >> Replication - ports/hosts


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Re: Replication - ports/hosts
(Thank you Michel)
On Wed, Jun 19, 2013 at 8:28 AM, Stack <[EMAIL PROTECTED]> wrote:

> Pardon me.   I should have mentioned that the slave cluster will send the
> master cluster a response (success, faliure).
> St.Ack
>
>
> On Wed, Jun 19, 2013 at 2:49 AM, Michel Segel <[EMAIL PROTECTED]>wrote:
>
>> What no ack from slave back to master???
>>
>> Sent from a remote device. Please excuse any typos...
>>
>> Mike Segel
>>
>> On Jun 19, 2013, at 12:41 AM, Stack <[EMAIL PROTECTED]> wrote:
>>
>> > On Mon, Jun 17, 2013 at 12:06 PM, Patrick Schless <
>> [EMAIL PROTECTED]
>> >> wrote:
>> >
>> >> Working on setting up HBase replication across a VPN tunnel, and
>> following
>> >> the docs here: [1] (and here: [2]).
>> >>
>> >> Two questions, regarding firewall allowances required:
>> >> 1) The docs say that the zookeeper clusters must be able to reach each
>> >> other. I don't see any docs on why this is (the high-level diagram
>> doesn't
>> >> even show a ZK ensemble on the client side). Is it correct that the ZK
>> >> ensembles need to communicate with each other?
>> > Yes.  ZK ensemble is the gateway to the cluster whether connecting
>> locally
>> > or remotely as replication does.
>> >
>> >
>> >
>> >> 2) What ports are required to be open for inter-cluster Region Server
>> >> communication? Is it only the slave that needs to accept requests from
>> the
>> >> master, or does the master also accept incoming requests from the
>> slaves?
>> >
>> >
>> > Do you mean master 'cluster' in the above?  If so, yes, the master
>> cluster
>> > sends data to the slave cluster (master RS to slave RSs).  The
>> > communication is one way; master to slave cluster.
>> >
>> > If you are asking if hbase masters need to communicate, the answer is
>> no.
>> >
>> > St.Ack
>> > P.S. Doug, we need to add above to doc
>>
>
>
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB