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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