Rohit created SOLR-10968:
----------------------------
Summary: 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
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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