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Changed copy on write to occur during lookup, rather than after lookup.

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Much carnage, but it's way faster.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3172 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Britt Park
2006-06-21 13:07:42 +00:00
parent 8cb3db78e3
commit 1318a5204b
14 changed files with 134 additions and 280 deletions
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29
source/java/org/alfresco/repo/avm/hibernate/HibernateTxn.java
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@@ -27,6 +27,7 @@ import org.hibernate.SessionFactory;
import org.hibernate.StaleStateException;
import org.hibernate.Transaction;
import org.hibernate.exception.GenericJDBCException;
import org.hibernate.exception.LockAcquisitionException;
/**
* Helper for DAOs.
@@ -106,26 +107,30 @@ public class HibernateTxn
}
// If we've lost a race or we've deadlocked, retry.
if (t instanceof StaleStateException ||
t instanceof GenericJDBCException)
t instanceof GenericJDBCException ||
t instanceof LockAcquisitionException)
{
if (t instanceof StaleStateException)
{
System.err.println("Lost Race");
continue;
}
System.err.println("Deadlock");
try
else
{
long interval;
synchronized (fRandom)
System.err.println("Deadlock");
try
{
interval = fRandom.nextInt(1000);
long interval;
synchronized (fRandom)
{
interval = fRandom.nextInt(1000);
}
Thread.sleep(interval);
continue;
}
catch (InterruptedException ie)
{
// Do nothing.
}
Thread.sleep(interval);
}
catch (InterruptedException ie)
{
// Do nothing.
}
continue;
}