[IGNITE-13075] NPE on request JDBC metadata

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9
• Component/s: sql
• Release Note: Fixed an issue where a metadata request through a JDBC Connection could fail if a metadata is requested for cache without explicit query entity configured
• Ignite Flags: Release Notes Required
• Assignee: Konstantin Orlov
• Reporter: Konstantin Orlov
• Reviewer: Andrey Mashenkov
• Created: 26/May/20 12:53
• Updated: 25/Jan/21 08:09
• Resolved: 29/May/20 13:26

Description

NPE occure when metadata is requested and there is a table created through java API like a

ignite.createCache(
    new CacheConfiguration<>(DEFAULT_CACHE_NAME)
        .setIndexedTypes(Integer.class, String.class)
);

Error here:

[2020-05-26 15:52:24,502][ERROR][client-connector-#264%thin.JdbcThinMetadataSelfTest0%][JdbcRequestHandler] Failed to get columns metadata [reqId=15, req=JdbcMetaColumnsRequest [schemaName=testCache, tblName=null, colName=null]][2020-05-26 15:52:24,502][ERROR][client-connector-#264%thin.JdbcThinMetadataSelfTest0%][JdbcRequestHandler] Failed to get columns metadata [reqId=15, req=JdbcMetaColumnsRequest [schemaName=testCache, tblName=null, colName=null]]java.lang.NullPointerException at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.lambda$null$10(IgniteH2Indexing.java:1902) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:270) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) at java.util.concurrent.ConcurrentHashMap$ValueSpliterator.forEachRemaining(ConcurrentHashMap.java:3566) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) at org.apache.ignite.internal.processors.query.h2.IgniteH2Indexing.columnsInformation(IgniteH2Indexing.java:1910) at org.apache.ignite.internal.processors.odbc.jdbc.JdbcMetadataInfo.getColumnsMeta(JdbcMetadataInfo.java:180) at org.apache.ignite.internal.processors.odbc.jdbc.JdbcRequestHandler.getColumnsMeta(JdbcRequestHandler.java:1128) at org.apache.ignite.internal.processors.odbc.jdbc.JdbcRequestHandler.doHandle(JdbcRequestHandler.java:348) at org.apache.ignite.internal.processors.odbc.jdbc.JdbcRequestHandler.handle(JdbcRequestHandler.java:257) at org.apache.ignite.internal.processors.odbc.ClientListenerNioListener.onMessage(ClientListenerNioListener.java:200) at org.apache.ignite.internal.processors.odbc.ClientListenerNioListener.onMessage(ClientListenerNioListener.java:54) at org.apache.ignite.internal.util.nio.GridNioFilterChain$TailFilter.onMessageReceived(GridNioFilterChain.java:279) at org.apache.ignite.internal.util.nio.GridNioFilterAdapter.proceedMessageReceived(GridNioFilterAdapter.java:109) at org.apache.ignite.internal.util.nio.GridNioAsyncNotifyFilter$3.body(GridNioAsyncNotifyFilter.java:97) at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at org.apache.ignite.internal.util.worker.GridWorkerPool$1.run(GridWorkerPool.java:70) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)

Issue Links

• causes: IGNITE-13957 GridQueryProcessor.validateKeyAndValue attempts to deserialize key and value when QueryEntity.fields is not set
• links to: GitHub Pull Request #7851