Shalin Shekhar Mangar created SOLR-11130:
--------------------------------------------
Summary: SolrJ routes V2Request to wrong nodes and such nodes are
not able to forward these requests correctly
Key: SOLR-11130
URL: https://issues.apache.org/jira/browse/SOLR-11130
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrJ, v2 API
Affects Versions: 6.6, master (8.0)
Reporter: Shalin Shekhar Mangar
I am trying to use V2Request to invoke the config API with SolrJ. Sometimes, I
see a weird NullPointerException:
{code}
5396 ERROR (qtp1277924867-37) [n:127.0.0.1:33527_solr ] o.a.s.s.HttpSolrCall
null:java.lang.NullPointerException
at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:518)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:378)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:322)
{code}
and the corresponding exception on the solrj client was:
{code}
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteExecutionException:
Error from server at http://127.0.0.1:33527/solr: Unknown Error
at
__randomizedtesting.SeedInfo.seed([33AAA14CC3DE7EE3:BBFE9E966D22131B]:0)
at
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteExecutionException.create(HttpSolrClient.java:812)
at
org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:602)
at
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:252)
at
org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:241)
at
org.apache.solr.client.solrj.impl.LBHttpSolrClient.doRequest(LBHttpSolrClient.java:483)
at
org.apache.solr.client.solrj.impl.LBHttpSolrClient.request(LBHttpSolrClient.java:413)
at
org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1121)
at
org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:862)
at
org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:793)
at org.apache.solr.client.solrj.SolrClient.request(SolrClient.java:1219)
at
org.apache.solr.cloud.TestCloudSearcherWarming.test(TestCloudSearcherWarming.java:68)
{code}
The code used to invoke the api was:
{code}
V2Request request = new V2Request.Builder("/c/" + collectionName +
"/config").withMethod(SolrRequest.METHOD.POST).withPayload(addListenerCommand).build();
solrClient.request(request);
{code}
This exception happens when the config API call is sent to a Solr node which
does not have any replica for the collection. Now in v1 API, solrj would refuse
to send the request and complain that no default collection is set but the
V2Request does not do that.
So there are two bugs here:
# V2Request tries to send request for collection X to a random node without
caring for correct routing
# The node receiving such request is not able to forward it to the right node
and fails with a NPE.
To solve 1, our options are:
# Either we start requiring the same for V2 i.e. user must set default
collection
# We detect that users are trying to invoke a collection specific v2 api and we
add a new method in V2RequestBuilder to specify a collection name and ensure
that the user calls it.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org
For additional commands, e-mail: dev-h...@lucene.apache.org
