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From "Jens Bo Rasmussen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-3418) Sometimes data is not replicated to replica slices added to a SolrCloud cluster which are running without replica
Date Fri, 27 Apr 2012 11:57:50 GMT
Jens Bo Rasmussen created SOLR-3418:
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             Summary: Sometimes data is not replicated to replica slices added to a SolrCloud
cluster which are running without replica
                 Key: SOLR-3418
                 URL: https://issues.apache.org/jira/browse/SOLR-3418
             Project: Solr
          Issue Type: Bug
          Components: replication (java)
    Affects Versions: 4.0
         Environment: Linux 2.6.32-29-server #58-Ubuntu SMP Fri Feb 11 21:06:51 UTC 2011 x86_64
GNU/Linux, Solr snapshot from 29th of February 2012, 2 Solr machines with 1 slice each and
0 replica
            Reporter: Jens Bo Rasmussen
            Priority: Minor
             Fix For: 4.1


Scenario: ensure that replica slices specified in the configuration are added on sequential
node restart without loosing data
Given a SolrCloud cluster is running with
number of servers (Solr nodes): 2
number of slices per node: 1
number of replica per slice: 0
number of documents in leader slice on first Solr node: 4
number of documents in leader slice on second Solr node: 1
When I configure each node with 1 replica per slice
And I restart the nodes one at a time
Then I would expect that the SolrCloud cluster is running with
number of servers (Solr nodes): 2
number of slices per node: 1
number of replica per slice: 1
number of documents in leader slice on first Solr node: 4
number of documents in replica slice on second Solr node: 4
number of documents in leader slice on first Solr node: 1
number of documents in replica slice on second Solr node: 1

Testresult: the scenario has been performed several times with success however sometimes data
is not replicated; it has been observed that sometimes no data is replicated at all and sometimes
only data from one of the slices is replicated

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