[SOLR-16485] Solr 9 standalone mode nullPointerException when ShardHandlerFactory defined

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 9.0
• Fix Version/s: 9.1, main (10.0)

Environment

Kubernetes using solr-operator 0.6.0

• Assignee: Houston Putman
• Reporter: Nick Vladiceanu
• Created: 21/Oct/22 10:05
• Updated: 25/Jan/23 16:15
• Resolved: 21/Oct/22 21:15

Description

Solr fails to create cores with a “NullPointerException" error when “shardHandlerFactory” is defined for any handlers in the solrconfig.xml file.

Snippet from solrconfig.xml:

<requestHandler name="/select" class="solr.SearchHandler" default="true”>
        <shardHandlerFactory name="shardHandlerFactory" class="HttpShardHandlerFactory">
            <int name="socketTimeout">${socketTimeout:800}</int>
            <int name="connTimeout">${connTimeout:500}</int>
        </shardHandlerFactory>
</requestHandler>

Snippet of NullPointerException (full text here: https://justpaste.it/5lntq ):

o

lxeu-atlas-web-dist-solr-1  | Caused by: java.lang.NullPointerException
olxeu-atlas-web-dist-solr-1  |  at org.apache.solr.handler.component.HttpShardHandlerFactory.setSecurityBuilder(HttpShardHandlerFactory.java:299) ~[?:?]
olxeu-atlas-web-dist-solr-1  |  at org.apache.solr.handler.component.SearchHandler.inform(SearchHandler.java:185) ~[?:?]
olxeu-atlas-web-dist-solr-1  |  at org.apache.solr.core.SolrResourceLoader.inform(SolrResourceLoader.java:722) ~[?:?]
olxeu-atlas-web-dist-solr-1  |  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1155) ~[?:?]
olxeu-atlas-web-dist-solr-1  |  at org.apache.solr.core.SolrCore.<init>(SolrCore.java:1048) ~[?:?]
olxeu-atlas-web-dist-solr-1  |  at org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1560) ~[?:?]
olxeu-atlas-web-dist-solr-1  |  at org.apache.solr.core.CoreContainer.lambda$load$10(CoreContainer.java:950) ~[?:?]
olxeu-atlas-web-dist-solr-1  |  at com.codahale.metrics.InstrumentedExecutorService$InstrumentedCallable.call(InstrumentedExecutorService.java:202) ~[metrics-core-4.1.5.jar:4.1.5]

Steps:
1. Run library/solr:9.0.0 in docker (default config, no tunings); mount a volume with solrconfig.xml that contains shardHandlerFactory and schema.xml;
2. Create a core using the solrconfig.xml: http://localhost:8983/solr/admin/cores?action=CREATE&name=test&instanceDir=/var/solr/data/test&config=solrconfig.xml&dataDir=data/

3. Failure with nullPointerException;
4. Remove the shardHandlerFactory block;
5. Repeat step 2;
6. Success.
 
Works fine when running Solr in SolrCloud mode.
Works fine in Solr 8.11 and all older versions in both, standalone and SolrCloud.

Issue Links

• links to: GitHub Pull Request #1100