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https://issues.apache.org/jira/browse/SOLR-5750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15270796#comment-15270796
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Shalin Shekhar Mangar commented on SOLR-5750:
---------------------------------------------

I am seeing a reproducible failure in TestCloudBackupRestore

{code}
  2> NOTE: reproduce with: ant test  -Dtestcase=TestCloudBackupRestore 
-Dtests.method=test -Dtests.seed=4AD582D4894F28CF -Dtests.slow=true 
-Dtests.locale=fr-BE -Dtests.timezone=Europe/Simferopol -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
[19:07:22.801] ERROR   28.2s J0 | TestCloudBackupRestore.test <<<
   > Throwable #1: org.apache.solr.client.solrj.SolrServerException: No 
collection param specified on request and no default collection has been set.
   >    at 
__randomizedtesting.SeedInfo.seed([4AD582D4894F28CF:C281BD0E27B34537]:0)
   >    at 
org.apache.solr.client.solrj.impl.CloudSolrClient.directUpdate(CloudSolrClient.java:590)
   >    at 
org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1073)
   >    at 
org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:962)
   >    at 
org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:898)
   >    at 
org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:149)
   >    at org.apache.solr.client.solrj.SolrClient.commit(SolrClient.java:484)
   >    at org.apache.solr.client.solrj.SolrClient.commit(SolrClient.java:463)
   >    at 
org.apache.solr.cloud.TestCloudBackupRestore.test(TestCloudBackupRestore.java:105)
{code}

> Backup/Restore API for SolrCloud
> --------------------------------
>
>                 Key: SOLR-5750
>                 URL: https://issues.apache.org/jira/browse/SOLR-5750
>             Project: Solr
>          Issue Type: Sub-task
>          Components: SolrCloud
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Varun Thacker
>             Fix For: 6.1
>
>         Attachments: SOLR-5750.patch, SOLR-5750.patch, SOLR-5750.patch, 
> SOLR-5750.patch, SOLR-5750.patch, SOLR-5750.patch, SOLR-5750.patch
>
>
> We should have an easy way to do backups and restores in SolrCloud. The 
> ReplicationHandler supports a backup command which can create snapshots of 
> the index but that is too little.
> The command should be able to backup:
> # Snapshots of all indexes or indexes from the leader or the shards
> # Config set
> # Cluster state
> # Cluster properties
> # Aliases
> # Overseer work queue?
> A restore should be able to completely restore the cloud i.e. no manual steps 
> required other than bringing nodes back up or setting up a new cloud cluster.
> SOLR-5340 will be a part of this issue.



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