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https://issues.apache.org/jira/browse/IGNITE-6807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16411300#comment-16411300
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Pavel Kuznetsov commented on IGNITE-6807:
-----------------------------------------
Created test for this.At current master actual part of stacktrace:
{noformat}
Caused by: java.lang.NullPointerException
at
org.apache.ignite.internal.processors.query.h2.database.H2TreeIndex.segmentsCount(H2TreeIndex.java:187)
at
org.apache.ignite.internal.processors.query.h2.opt.GridH2IndexBase.threadLocalSegment(GridH2IndexBase.java:182)
at
org.apache.ignite.internal.processors.query.h2.database.H2TreeIndex.find(H2TreeIndex.java:195)
at
org.apache.ignite.internal.processors.query.h2.opt.GridH2ProxyIndex.find(GridH2ProxyIndex.java:99)
at org.h2.index.BaseIndex.find(BaseIndex.java:128)
at org.h2.index.IndexCursor.find(IndexCursor.java:169)
at org.h2.table.TableFilter.next(TableFilter.java:468)
at org.h2.command.dml.Select.queryGroup(Select.java:311)
at org.h2.command.dml.Select.queryWithoutCache(Select.java:620)
at org.h2.command.dml.Query.queryWithoutCacheLazyCheck(Query.java:114)
at org.h2.command.dml.Query.query(Query.java:352)
at org.h2.command.dml.Query.query(Query.java:333)
at org.h2.command.CommandContainer.query(CommandContainer.java:113)
at org.h2.command.Command.executeQuery(Command.java:201)
... 19 more
{noformat}
> NPE is thrown if local query is executed on client
> --------------------------------------------------
>
> Key: IGNITE-6807
> URL: https://issues.apache.org/jira/browse/IGNITE-6807
> Project: Ignite
> Issue Type: Bug
> Components: sql
> Affects Versions: 2.3
> Reporter: Valentin Kulichenko
> Assignee: Pavel Kuznetsov
> Priority: Major
> Labels: usability
>
> If a local query is executed on client node by mistake, ugly NPE is thrown:
> {noformat}
> Caused by: java.lang.NullPointerException
> at
> org.apache.ignite.internal.processors.query.h2.database.H2TreeIndex.segmentsCount(H2TreeIndex.java:162)
> at
> org.apache.ignite.internal.processors.query.h2.opt.GridH2IndexBase.threadLocalSegment(GridH2IndexBase.java:172)
> at
> org.apache.ignite.internal.processors.query.h2.database.H2TreeIndex.find(H2TreeIndex.java:177)
> at org.h2.index.BaseIndex.find(BaseIndex.java:128)
> at org.h2.index.IndexCursor.find(IndexCursor.java:169)
> at org.h2.table.TableFilter.next(TableFilter.java:468)
> at
> org.h2.command.dml.Select$LazyResultQueryFlat.fetchNextRow(Select.java:1452)
> at org.h2.result.LazyResult.hasNext(LazyResult.java:79)
> at org.h2.result.LazyResult.next(LazyResult.java:59)
> at org.h2.command.dml.Select.queryFlat(Select.java:519)
> at org.h2.command.dml.Select.queryWithoutCache(Select.java:625)
> at org.h2.command.dml.Query.queryWithoutCacheLazyCheck(Query.java:114)
> at org.h2.command.dml.Query.query(Query.java:352)
> at org.h2.command.dml.Query.query(Query.java:333)
> at org.h2.command.CommandContainer.query(CommandContainer.java:113)
> at org.h2.command.Command.executeQuery(Command.java:201)
> ... 21 more
> {noformat}
> We should detect this situation and throw proper exception instead.
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