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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-5580) NPE when create a core with both explicite shard and coreNodeName
Date Mon, 30 Dec 2013 19:01:55 GMT

    [ https://issues.apache.org/jira/browse/SOLR-5580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13858992#comment-13858992
] 

Mark Miller commented on SOLR-5580:
-----------------------------------

The collections API is not ready for that functionality - you still have to use the collections
API in concert with the core admin API to do many things. Until the Collections API can do
everything without the core admin API, this feature is a problem.

> NPE when create a core with both explicite  shard and coreNodeName
> ------------------------------------------------------------------
>
>                 Key: SOLR-5580
>                 URL: https://issues.apache.org/jira/browse/SOLR-5580
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 4.6
>         Environment: OS:Red Hat Enterprise Linux Server release 6.4 (Santiago)
> Software:solr 4.6,
>                jdk:OpenJDK Runtime Environment (rhel-2.3.4.1.el6_3-x86_64)
>                     OpenJDK 64-Bit Server VM (build 23.2-b09, mixed mode)
>            Reporter: YouPeng Yang
>            Assignee: Mark Miller
>              Labels: core
>             Fix For: 5.0, 4.7, 4.6.1
>
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
>
> In class org.apache.solr.cloud.Overseer the Line 360:
> ---------------------------------------------------------------------
>           if (sliceName !=null && collectionExists &&  !"true".equals(state.getCollection(collection).getStr("autoCreated")))
{
>             Slice slice = state.getSlice(collection, sliceName);
>             if (slice.getReplica(coreNodeName) == null) {
>               log.info("core_deleted . Just return");
>               return state;
>             }
>           }
> ---------------------------------------------------------------------
> the slice needs to be checked null .because when create a new core with both explicite
shard and coreNodeName, the state.getSlice(collection, sliceName)  may return a null.So it
needs to be checked ,or there will be an NullpointException
> ---------------------------------------------------------------------
>           if (sliceName !=null && collectionExists &&  !"true".equals(state.getCollection(collection).getStr("autoCreated")))
{
>             Slice slice = state.getSlice(collection, sliceName);
>             if (slice != null && slice.getReplica(coreNodeName) == null) {
>               log.info("core_deleted . Just return");
>               return state;
>             }
>           }
> ---------------------------------------------------------------------



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