Vladimir Steshin created IGNITE-28133:
-----------------------------------------
Summary: Failure on cache.get() at the eviction.
Key: IGNITE-28133
URL: https://issues.apache.org/jira/browse/IGNITE-28133
Project: Ignite
Issue Type: Improvement
Reporter: Vladimir Steshin
When the eviction enabled on an in-memory cache, an assertion may apper in
paraller get() operation:
{code:java}
Caused by: java.lang.AssertionError: [link=337503] at
org.apache.ignite.internal.processors.cache.persistence.evict.RandomLruPageEvictionTracker.getFragmentLink(RandomLruPageEvictionTracker.java:193)
at
org.apache.ignite.internal.processors.cache.persistence.evict.PageAbstractEvictionTracker.tailPageTrackingIdx(PageAbstractEvictionTracker.java:212)
at
org.apache.ignite.internal.processors.cache.persistence.evict.PageAbstractEvictionTracker.trackFragmentPage(PageAbstractEvictionTracker.java:199)
at
org.apache.ignite.internal.processors.cache.persistence.freelist.AbstractFreeList$WriteRowHandler.addRow(AbstractFreeList.java:215)
at
org.apache.ignite.internal.processors.cache.persistence.freelist.AbstractFreeList$WriteRowHandler.run(AbstractFreeList.java:172)
at
org.apache.ignite.internal.processors.cache.persistence.freelist.AbstractFreeList$WriteRowHandler.run(AbstractFreeList.java:159)
at
org.apache.ignite.internal.processors.cache.persistence.tree.util.PageHandler.writePage(PageHandler.java:313)
at
org.apache.ignite.internal.processors.cache.persistence.DataStructure.write(DataStructure.java:371)
at
org.apache.ignite.internal.processors.cache.persistence.freelist.AbstractFreeList.writeSinglePage(AbstractFreeList.java:714)
at
org.apache.ignite.internal.processors.cache.persistence.freelist.AbstractFreeList.insertDataRow(AbstractFreeList.java:603)
at
org.apache.ignite.internal.processors.cache.persistence.freelist.CacheFreeList.insertDataRow(CacheFreeList.java:74)
at
org.apache.ignite.internal.processors.cache.persistence.freelist.CacheFreeList.insertDataRow(CacheFreeList.java:35)
at
org.apache.ignite.internal.processors.cache.persistence.RowStore.addRow(RowStore.java:110)
at
org.apache.ignite.internal.processors.cache.IgniteCacheOffheapManagerImpl$CacheDataStoreImpl.createRow(IgniteCacheOffheapManagerImpl.java:1541)
at
org.apache.ignite.internal.processors.cache.GridCacheMapEntry$AtomicCacheUpdateClosure.update(GridCacheMapEntry.java:5059)
at
org.apache.ignite.internal.processors.cache.GridCacheMapEntry$AtomicCacheUpdateClosure.call(GridCacheMapEntry.java:4785)
at
org.apache.ignite.internal.processors.cache.GridCacheMapEntry$AtomicCacheUpdateClosure.call(GridCacheMapEntry.java:4470)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$Invoke.invokeClosure(BPlusTree.java:3941)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.invokeDown(BPlusTree.java:2247)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.invoke(BPlusTree.java:2137)
{code}
This happens because _IgniteCacheOffheapManagerImpl_ does unprotected (with no
{_}readLock(){_}):
{code:java}
PageEvictionTracker#touchPage(long pageId):{code}
{code:java}
private void afterRowFound(@Nullable CacheDataRow row, KeyCacheObject key)
throws IgniteCheckedException {
if (row != null) {
row.key(key);
// Reproduce helper cycle. Increase the iteration number to get higher
concurrecy chance.
for (int i = 0; i < 1000000; ++i)
grp.dataRegion().evictionTracker().touchPage(row.link());
}
}{code}
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