[jira] [Created] (SOLR-3722) NPE from NamedList constructor if shard fails to return auxilury data about all docs

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[jira] [Created] (SOLR-3722) NPE from NamedList constructor if shard fails to return auxilury data about all docs

JIRA jira@apache.org
Hoss Man created SOLR-3722:
------------------------------

             Summary: NPE from NamedList constructor if shard fails to return auxilury data about all docs
                 Key: SOLR-3722
                 URL: https://issues.apache.org/jira/browse/SOLR-3722
             Project: Solr
          Issue Type: Bug
    Affects Versions: 3.6.1
            Reporter: Hoss Man


Michelle Talley reported a problem on the user w/ distributed search .. root issue isn't understood yet, but a secondary problem was that when adding "debugQuery=true" this NPE was thrown...

{noformat}
java.lang.NullPointerException
        at org.apache.solr.common.util.NamedList.nameValueMapToList(NamedList.java:110)
        at org.apache.solr.common.util.NamedList.<init>(NamedList.java:75)
        at org.apache.solr.common.util.SimpleOrderedMap.<init>(SimpleOrderedMap.java:58)
        at org.apache.solr.handler.component.DebugComponent.finishStage(DebugComponent.java:130)
{noformat}

the cause evidently relating to a mismatch between the rb.resultIds list of ShardDocs, and the score explanation output from each shard.  The pattern of code in DebugComponent is common among several components, and i think we should "fix" NamedList to ignore nulls in it's {{Map.Entry<String, T>[]}} constructor

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[jira] [Commented] (SOLR-3722) NPE from NamedList constructor if shard fails to return auxilury data about all docs

JIRA jira@apache.org

    [ https://issues.apache.org/jira/browse/SOLR-3722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13431425#comment-13431425 ]

Hoss Man commented on SOLR-3722:
--------------------------------

in addition to this, we should consider updating the components that use this pattern to check the arrays for null first and taking one or more actions...

1) log a warning about which docs have missing info?
2) inject placeholder data into the response?  (perhaps just a "null" value with the corrisponding id key?)


               

> NPE from NamedList constructor if shard fails to return auxilury data about all docs
> ------------------------------------------------------------------------------------
>
>                 Key: SOLR-3722
>                 URL: https://issues.apache.org/jira/browse/SOLR-3722
>             Project: Solr
>          Issue Type: Bug
>    Affects Versions: 3.6.1
>            Reporter: Hoss Man
>
> Michelle Talley reported a problem on the user w/ distributed search .. root issue isn't understood yet, but a secondary problem was that when adding "debugQuery=true" this NPE was thrown...
> {noformat}
> java.lang.NullPointerException
>         at org.apache.solr.common.util.NamedList.nameValueMapToList(NamedList.java:110)
>         at org.apache.solr.common.util.NamedList.&lt;init&gt;(NamedList.java:75)
>         at org.apache.solr.common.util.SimpleOrderedMap.&lt;init&gt;(SimpleOrderedMap.java:58)
>         at org.apache.solr.handler.component.DebugComponent.finishStage(DebugComponent.java:130)
> {noformat}
> the cause evidently relating to a mismatch between the rb.resultIds list of ShardDocs, and the score explanation output from each shard.  The pattern of code in DebugComponent is common among several components, and i think we should "fix" NamedList to ignore nulls in it's {{Map.Entry<String, T>[]}} constructor

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