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https://issues.apache.org/jira/browse/SOLR-11644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16253680#comment-16253680
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Jarek Mazgaj commented on SOLR-11644:
-------------------------------------
In code for every id there is a call made
(https://github.com/apache/lucene-solr/blob/master/solr/core/src/java/org/apache/solr/handler/component/RealTimeGetComponent.java#L820):
{code:java}
Slice slice = coll.getRouter().getTargetSlice(id, null, null, params, coll);
{code}
it goes to HashBasedRouter in my case
(https://github.com/apache/lucene-solr/blob/master/solr/solrj/src/java/org/apache/solr/common/cloud/HashBasedRouter.java#L32):
{code:java}
@Override
public Slice getTargetSlice(String id, SolrInputDocument sdoc, String route,
SolrParams params, DocCollection collection) {
int hash;
if (route != null) {
hash = sliceHash(route, sdoc, params, collection);
} else {
if (id == null) id = getId(sdoc, params);
hash = sliceHash(id, sdoc, params, collection);
}
return hashToSlice(hash, collection);
}
{code}
So the slice is calculated using id (what is wrong in my case). _route_
parameter is omitted...
> RealTimeGet not working when router.field is not an uniqeKey
> ------------------------------------------------------------
>
> Key: SOLR-11644
> URL: https://issues.apache.org/jira/browse/SOLR-11644
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 7.1, 6.6.2
> Reporter: Jarek Mazgaj
>
> I have a schema with following fields:
> {code:java}
> <field name="candidate_id" type="string" required="true"/>
> <field name="company_id" type="string" required="true"/>
> <field name="name" type="string"/>
> <uniqueKey>candidate_id</uniqueKey>
> {code}
> A collection was created with following parameters:
> * numShards=4
> * replicationFactor=2
> * *router.field=company_id*
> When I try to do a Real Time Get with no routing information:
> {code:java}
> /get?id=1044101665
> {code}
> I get an empty response.
> When I try to add routing information (search returns document for these
> values):
> {code:java}
> /get?id=1044101665&_route_=77493783
> {code}
> I get an error:
> {code}
> org.apache.solr.common.SolrException: Can't find shard 'applicants_shard7'
> at
> org.apache.solr.handler.component.RealTimeGetComponent.sliceToShards(RealTimeGetComponent.java:888)
> at
> org.apache.solr.handler.component.RealTimeGetComponent.createSubRequests(RealTimeGetComponent.java:835)
> at
> org.apache.solr.handler.component.RealTimeGetComponent.distributedProcess(RealTimeGetComponent.java:791)
> at
> org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:345)
> at
> org.apache.solr.handler.RealTimeGetHandler.handleRequestBody(RealTimeGetHandler.java:46)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:177)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:2484)
> at org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:720)
> at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:526)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:382)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:326)
> at
> org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1751)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
> at
> org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
> at org.eclipse.jetty.server.Server.handle(Server.java:534)
> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:108)
> at
> org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> In logs I can find the following line:
> {code:java}
> 2017-11-15 13:20:09.369 INFO (qtp257895351-1305) [c:applicants s:shard9
> r:core_node19 x:applicants_shard9_replica_n16] o.a.s.h.c.RealTimeGetComponent
> LOOKUP_SLICE:shard12=http://solr-applications1-int:8983/solr/applicants_shard12_replica_n22/
> {code}
> It seems that RealTimeGet checks the shard number for the "candidate_id"
> field (which is a unique field) and it gets: *shard7* (see exception).
> It should check the shard number for the "company_id" field (set by
> router.field) and then it would get the correct *shard12* (one visible in
> logs).
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