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https://issues.apache.org/jira/browse/IGNITE-5874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16260991#comment-16260991
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Dmitriy Pavlov commented on IGNITE-5874:
----------------------------------------
Without this fix following assertion is occurred:
{noformat}
Caused by: java.lang.AssertionError: FullPageId [pageId=0001000000000005,
effectivePageId=0000000000000005, grpId=-1237460590]
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.acquirePage(PageMemoryImpl.java:624)
at
org.apache.ignite.internal.processors.cache.persistence.pagemem.PageMemoryImpl.acquirePage(PageMemoryImpl.java:521)
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.PendingRow.initKey(PendingRow.java:72)
at
org.apache.ignite.internal.processors.cache.tree.PendingEntriesTree.getRow(PendingEntriesTree.java:116)
at
org.apache.ignite.internal.processors.cache.tree.PendingEntriesTree.getRow(PendingEntriesTree.java:31)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.fillFromBuffer(BPlusTree.java:4539)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.init(BPlusTree.java:4441)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.access$5300(BPlusTree.java:4380)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetCursor.notFound(BPlusTree.java:2527)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$Search.run0(BPlusTree.java:276)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetPageHandler.run(BPlusTree.java:4695)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetPageHandler.run(BPlusTree.java:4680)
at
org.apache.ignite.internal.processors.cache.persistence.tree.util.PageHandler.readPage(PageHandler.java:158)
at
org.apache.ignite.internal.processors.cache.persistence.DataStructure.read(DataStructure.java:319)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findDown(BPlusTree.java:1121)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findDown(BPlusTree.java:1130)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.doFind(BPlusTree.java:1090)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.access$15800(BPlusTree.java:81)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.find(BPlusTree.java:4595)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ForwardCursor.access$5400(BPlusTree.java:4380)
at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.find(BPlusTree.java:946)
{noformat}
> Store TTL expire times in B+ tree on per-partition basis
> --------------------------------------------------------
>
> Key: IGNITE-5874
> URL: https://issues.apache.org/jira/browse/IGNITE-5874
> Project: Ignite
> Issue Type: Improvement
> Components: cache, persistence
> Affects Versions: 2.1
> Reporter: Ivan Rakov
> Attachments: IgnitePdsWithTtlTest.java
>
>
> TTL expire times for entries are stored in PendingEntriesTree, which is
> singleton for cache. When expiration occurs, all system threads iterate
> through the tree in order to remove expired entries. Iterating through single
> tree causes contention and perfomance loss.
> Related performance issue: https://issues.apache.org/jira/browse/IGNITE-5793
> We should keep instance of PendingEntriesTree for each partition, like we do
> for CacheDataTree.
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