Ivan Daschinskiy created IGNITE-9854:
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Summary: NullPointerException in
PageMemoryImpl.refreshOutdatedPages during removing from segCheckpointPages
Key: IGNITE-9854
URL: https://issues.apache.org/jira/browse/IGNITE-9854
Project: Ignite
Issue Type: Bug
Components: persistence
Affects Versions: 2.6
Reporter: Ivan Daschinskiy
Fix For: 2.8
Because of possibility of concurrently setting segCheckpointPages to null of
segment not under segment writeLock (i.e. in PageMemoryImpl#finishCheckpoint),
NullPointerException is possible. This causes immediate node failure.
Example stack trace is attached (failure during iteration in rebalance
supplier).
{code:java}
java.lang.NullPointerException: null
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.refreshOutdatedPage(PageMemoryImpl.java:840)
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.access$5100(PageMemoryImpl.java:120)
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl$Segment.removePageForReplacement(PageMemoryImpl.java:2175)
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl$Segment.access$900(PageMemoryImpl.java:1841)
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.acquirePage(PageMemoryImpl.java:686)
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.acquirePage(PageMemoryImpl.java:627)
at
org.apache.ignite.internal.processors.cache.persistence.CacheDataRowAdapter.initFromLink(CacheDataRowAdapter.java:140)
at
org.apache.ignite.internal.processors.cache.persistence.CacheDataRowAdapter.initFromLink(CacheDataRowAdapter.java:102)
at
org.apache.ignite.internal.processors.cache.tree.DataRow.<init>(DataRow.java:54)
at
org.apache.ignite.internal.processors.cache.tree.CacheDataRowStore.dataRow(CacheDataRowStore.java:73)
at
org.apache.ignite.internal.processors.cache.tree.CacheDataTree.getRow(CacheDataTree.java:146)
at
org.apache.ignite.internal.processors.cache.tree.CacheDataTree.getRow(CacheDataTree.java:41)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.fillFromBuffer(BPlusTree.java:4660)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.nextPage(BPlusTree.java:4760)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.next(BPlusTree.java:4689)
{code}
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