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From "Rohit (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-10968) Collection Backup API call fails with exception
Date Wed, 28 Jun 2017 16:01:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-10968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rohit updated SOLR-10968:
-------------------------
    Priority: Minor  (was: Major)

> Collection Backup API call fails with exception
> -----------------------------------------------
>
>                 Key: SOLR-10968
>                 URL: https://issues.apache.org/jira/browse/SOLR-10968
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: SolrCloud
>    Affects Versions: 6.6
>         Environment: Tested on Fedora 24 64-bit (Linux), 8 GB RAM, 2 CPU and 
> OS: Mac OSX Sierra 
> Processor: 2.6 GHz Intel Core i5 (64 bit)
> RAM: 8 GB
>            Reporter: Rohit
>            Priority: Minor
>              Labels: Backup, Solr_Cloud
>         Attachments: 10968.patch
>
>
> Backup API (https://cwiki.apache.org/confluence/display/solr/Collections+API#CollectionsAPI-backup)
fails with exception: "org.apache.solr.common.SolrException:org.apache.solr.common.SolrException:
Could not backup all replicas"
> Steps to reproduce the issue
> Solr 6.6.0 (fresh install, 4 node solr cluster):
> 1. Create a collection in Solr called citibike:
> {color:#14892c}http://localhost:8983/solr/admin/collections?action=CREATE&name=citibike&numShards=2&replicationFactor=1&maxShardsPerNode=1&collection.configName=rohit&&createNodeSet=192.168.3.15:7574_solr,192.168.3.15:8983_solr{color}
> 2. Index 8 documents to Solr collection citibike:
> {
>   "responseHeader":{
>     "zkConnected":true,
>     "status":0,
>     "QTime":10,
>     "params":{
>       "q":"*:*",
>       "indent":"on",
>       "wt":"json"}},
>   {color:#14892c}"response":{"numFound":8,"start":0,"maxScore":1.0,"docs":[{color}
>       {
>         "id":"doc1",
>         "_version_":1570643322182041600},
>       {
>         "id":"doc2",
>         "_version_":1570643322185187328},
>       {
>         "id":"doc3",
>         "_version_":1570643322185187329},
>       {
>         "id":"doc5",
>         "_version_":1570643322188333056},
>       {
>         "id":"doc6",
>         "_version_":1570643322191478784},
>       {
>         "id":"doc7",
>         "_version_":1570643322191478785},
>       {
>         "id":"doc8",
>         "_version_":1570643322191478786},
>       {
>         "id":"doc4",
>         "_version_":1570643322179944448}]
>   }}
> 2. Try to create a backup of the collection with only 8 documents:
> {
>   "responseHeader":{
>     "status":500,
>     "QTime":20},
> {color:#14892c}  "failure":{
>     "192.168.3.15:8983_solr":"org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException:Error
from server at http://192.168.3.15:8983/solr: Failed to backup core=citibike_shard2_replica1
because java.nio.file.NoSuchFileException: /Users/Rohit/Documents/SolrInstall/solr-6.6.0/example/cloud/node1/solr/citibike_shard2_replica1/data/index/segments_8"},
>   "Operation backup caused exception:":"org.apache.solr.common.SolrException:org.apache.solr.common.SolrException:
Could not backup all replicas",
>   "exception":{
>     "msg":"Could not backup all replicas",
>     "rspCode":500},
>   "error":{
>     "metadata":[
>       "error-class","org.apache.solr.common.SolrException",
>       "root-error-class","org.apache.solr.common.SolrException"],
>     "msg":"Could not backup all replicas",
>     "trace":"org.apache.solr.common.SolrException: Could not backup all replicas\n\tat
org.apache.solr.handler.admin.CollectionsHandler.handleResponse(CollectionsHandler.java:300)\n\tat
org.apache.solr.handler.admin.CollectionsHandler.invokeAction(CollectionsHandler.java:237)\n\tat
org.apache.solr.handler.admin.CollectionsHandler.handleRequestBody(CollectionsHandler.java:215)\n\tat
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173)\n\tat
org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:748)\n\tat org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:729)\n\tat
org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:510)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:361)\n\tat
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:305)\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1691)\n\tat
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)\n\tat
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)\n\tat
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)\n\tat
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)\n\tat
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)\n\tat
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)\n\tat
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)\n\tat org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)\n\tat
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:534)\n\tat
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)\n\tat
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)\n\tat
org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)\n\tat org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)\n\tat
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)\n\tat
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)\n\tat
org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)\n\tat
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)\n\tat
java.lang.Thread.run(Thread.java:745)\n",
>     "code":500}}{color}
> *Suggested Fix: * _{color:#205081}Call commit on the collection and try to execute the
Backup API again. This time it works as the segments have been written to disk. 
> So fix would be to call commit for the collection intrinsically every time BACKUP API
is invoked. {color}_



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