[hibernate-issues] [Hibernate-JIRA] Created: (HHH-4757) nextTimestamp not precise enough for Infinispan 2LC
nextTimestamp not precise enough for Infinispan 2LC
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Key: HHH-4757
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4757
Project: Hibernate Core
Issue Type: Bug
Components: caching (L2)
Affects Versions: 3.5.0-Beta-2
Reporter: Galder Zamarreno
Assignee: Galder Zamarreno
Fix For: 3.5
oing some tests we discovered that with Infinispan cached querys are not recognized as
UpToDate
when the query call (= the chache put) happens within 100ms after the last
UpdateTimestamps invalidation.
This is because Infinispan defines a rather low timestamp granular precision, indeed
ehcache's precision goes into milliseconds.
InfinispanRegionFactory.java:
public long nextTimestamp() {
return System.currentTimeMillis() / 100;
}
EHCache-TimeStamper:
public static long next() {
synchronized(Timestamper.class) {
long newTime = System.currentTimeMillis() << BIN_DIGITS;
if (time<newTime) {
time = newTime;
counter = 0;
}
else if (counter < ONE_MS - 1 ) {
counter++;
}
return time + counter;
}
}
regards
G.D.
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