Denis Magda created IGNITE-3513:
-----------------------------------
Summary: Cleanup worker is placed in the Thread's waiting queue
using Thread.sleep method
Key: IGNITE-3513
URL: https://issues.apache.org/jira/browse/IGNITE-3513
Project: Ignite
Issue Type: Bug
Affects Versions: 1.6
Reporter: Denis Magda
Assignee: Semen Boikov
Fix For: 1.7
There is a bug in current implementation of
{{GridCacheTtlManager#CleanupWorker}}.
Refer to the implementation's code snippet and the details below.
{code}
EntryWrapper first = pendingEntries.firstx();
if (first != null) {
long waitTime = first.expireTime - U.currentTimeMillis();
if (waitTime > 0)
U.sleep(waitTime);
}
{code}
1. Put first item with TTL = 1 hour. CleanupWorker will go to sleep for 1 hour.
2. Put second item with TTL = 1 minute. Since
CleanupWorker's thread sleeps now, second item will not be expired at the time.
NOTE: This scenario is easily to reproducible if first and second items are put
into cache asynchronously. If try to put them in same thread one-by-one
expiration may work fine.
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