accumulo-notifications mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Denis Petrov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-3471) Adding a new tserver puts some tables offline for few minutes
Date Mon, 12 Jan 2015 17:18:34 GMT
Denis Petrov created ACCUMULO-3471:
--------------------------------------

             Summary: Adding a new tserver puts some tables offline for few minutes
                 Key: ACCUMULO-3471
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3471
             Project: Accumulo
          Issue Type: Bug
          Components: tserver
    Affects Versions: 1.6.1
         Environment: Ubuntu 12.04
            Reporter: Denis Petrov


I run an Accumulo cluster with 15 tservers with about 6000 tablets on each (disks are quite
slow - each node has 2*4Tb SATA)

When a new tserver added to the cluster, the rebalancing procedure starts.

During this procedure some tablets are offline and unreachable during 5-10 minutes.
It is visible in http://monitor:50095/tables and by timeouts on client side.

The rebalancing caused by killing a tserver converges much faster then rebalancing caused
by adding a tserver.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message