Pavel Kovalenko created IGNITE-10556:
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Summary: Attempt to decrypt data records during read-only
metastorage recovery leads to NPE
Key: IGNITE-10556
URL: https://issues.apache.org/jira/browse/IGNITE-10556
Project: Ignite
Issue Type: Bug
Components: cache
Affects Versions: 2.8
Reporter: Pavel Kovalenko
Fix For: 2.8
Stacktrace:
{noformat}
Caused by: java.lang.NullPointerException
at
org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$RestoreStateContext.lambda$next$0(GridCacheDatabaseSharedManager.java:4795)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
at
java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at
java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at
java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at
org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$RestoreStateContext.next(GridCacheDatabaseSharedManager.java:4799)
at
org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager$RestoreLogicalState.next(GridCacheDatabaseSharedManager.java:4926)
at
org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.applyLogicalUpdates(GridCacheDatabaseSharedManager.java:2370)
at
org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.readMetastore(GridCacheDatabaseSharedManager.java:733)
at
org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.notifyMetaStorageSubscribersOnReadyForRead(GridCacheDatabaseSharedManager.java:4493)
at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:1048)
... 20 more
{noformat}
It happens because there is no encryption key for that cache group. Encryption
keys are initialized after read-only metastorage is ready. There is a bug in
RestoreStateContext which tries to filter out DataEntries in DataRecord by
group id during read-only metastorage recovery. We should explicitly skip such
records before filtering. As a possible solution, we should provide more
flexible records filter to RestoreStateContext if we do recovery of read-only
metastorage.
We should also return something more meaningful instead of null if no
encryption key is found for DataRecord, as it can be a silent problem for
components iterating over WAL.
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