Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Plain View
Zookeeper, mail # user - Backup/restore of an emsemble


+
Sergey Maslyakov 2013-07-05, 03:38
+
Flavio Junqueira 2013-07-05, 13:31
+
Sergey Maslyakov 2013-07-05, 16:12
Copy link to this message
-
Re: Backup/restore of an emsemble
Jordan Zimmerman 2013-07-05, 21:41
I'm curious why Exhibitor doesn't meet your needs.

-JZ

On Jul 5, 2013, at 9:12 AM, Sergey Maslyakov <[EMAIL PROTECTED]> wrote:

> Yes, Flavio, I looked at Exhibitor, but I need a pretty granular control
> over a cluster of ZK servers. This is why I'm inclined to build something
> by hand. So far, a pair of external export and import clients seems like a
> promising approach.
>
> Export would connect to the ensemble and dump out the data into a file on
> disk. Import would connect, wipe out the namespace, and then reload the
> data from the file that was earlier created by the export client.
>
>
>
> On Fri, Jul 5, 2013 at 8:31 AM, Flavio Junqueira <[EMAIL PROTECTED]>wrote:
>
>> Sergey,
>>
>> Have you had a look at Exhibitor?
>>
>> https://github.com/Netflix/exhibitor
>>
>> -Flavio
>>
>> -----Original Message-----
>> From: Sergey Maslyakov [mailto:[EMAIL PROTECTED]]
>> Sent: 05 July 2013 04:39
>> To: [EMAIL PROTECTED]
>> Subject: Backup/restore of an emsemble
>>
>> A while ago, Jack Ma asked this question:
>>
>> http://mail-archives.apache.org/mod_mbox/zookeeper-user/201306.mbox/%3CCAB%2
>> BcfdyPDpbUh5FyDT%3D9mU%3DFCHEA1AZpkF6X0nN1t4mjwqu2tA%40mail.gmail.com%3E
>>
>> I wonder if there were any helpful suggestions that did not go into the
>> mailing list.
>>
>> I am mostly concerned about restoring data in a Zookeeper ensemble.
>>
>> There is no document at the project web-site that would explain the restore
>> procedure for a distributed deployment. The home-grown solution that
>> involves stopping the whole cluster, wiping out databases on all but one
>> server, restoring the database on one server, and then bring up the cluster
>> and pray that the populated server becomes the leader and populates the
>> cluster. Such solution seems to be too error-prone.
>>
>> Does anyone have recommendations on how to make it robust?
>>
>> Maybe there is a way to force-populate the ensemble remotely?
>>
>>
>> Thanks,
>> /Sergey
>>
>>
+
Sergey Maslyakov 2013-07-05, 21:50
+
Flavio Junqueira 2013-07-09, 09:16
+
Jordan Zimmerman 2013-07-09, 20:45
+
Flavio Junqueira 2013-07-05, 16:33
+
Sergey Maslyakov 2013-07-05, 16:40
+
Edward Ribeiro 2013-07-05, 17:43
+
Sergey Maslyakov 2013-07-05, 20:53
+
Edward Ribeiro 2013-07-05, 21:59