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Added transaction timeout control, default to 2 hours. Set connection to auto commit before release back to connection pool.

This commit is contained in:
Heng Sin Low 2011-02-10 10:33:21 +08:00
parent 2fcdbafd6d
commit e573983f5f
1 changed files with 82 additions and 3 deletions
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85
org.adempiere.base/src/org/compiere/util/Trx.java
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@ -67,7 +67,7 @@ public class Trx implements VetoableChangeListener
if (s_cache == null)
{
s_cache = new CCache<String,Trx>("Trx", 10, -1); // no expiration
s_cache.addVetoableChangeListener(new Trx("controller"));
s_cache.addVetoableChangeListener(new Trx("controller_" + "_" + UUID.randomUUID()));
}
Trx retValue = (Trx)s_cache.get(trxName);
@ -82,6 +82,17 @@ public class Trx implements VetoableChangeListener
/** Transaction Cache */
private static CCache<String,Trx> s_cache = null; // create change listener
private static Trx.TrxMonitor s_monitor = new Trx.TrxMonitor();
static
{
Thread monitorThread = new Thread(s_monitor);
monitorThread.setDaemon(true);
monitorThread.setPriority(Thread.MIN_PRIORITY);
monitorThread.setName("Trx-Monitor");
monitorThread.start();
}
/**
* Create unique Transaction Name
* @param prefix optional prefix
@ -125,6 +136,11 @@ public class Trx implements VetoableChangeListener
{
// log.info (trxName);
setTrxName (trxName);
if (trxName.length() < 36)
{
String msg = "Illegal transaction name format, not prefix+UUID or UUID: " + trxName;
log.log(Level.SEVERE, msg, new Exception(msg));
}
setConnection (con);
} // Trx
@ -137,6 +153,9 @@ public class Trx implements VetoableChangeListener
private long m_startTime;
/** transaction timeout, in seconds **/
private int m_timeout = 60 * 120; //120 minutes
/**
* Get connection
* @return connection
@ -383,11 +402,21 @@ public class Trx implements VetoableChangeListener
// Close Connection
try
{
m_connection.close();
m_connection.setAutoCommit(true);
}
catch (SQLException e)
{
log.log(Level.SEVERE, m_trxName, e);
}
finally
{
try
{
m_connection.close();
}
catch (SQLException e)
{
log.log(Level.SEVERE, m_trxName, e);
}
}
m_connection = null;
m_active = false;
@ -474,6 +503,9 @@ public class Trx implements VetoableChangeListener
*/
public static Trx[] getActiveTransactions()
{
if (s_cache == null)
return new Trx[0];
Collection<Trx> collections = s_cache.values();
Trx[] trxs = new Trx[collections.size()];
collections.toArray(trxs);
@ -557,4 +589,51 @@ public class Trx implements VetoableChangeListener
}
}
/**
* @return trx timoue value in second
*/
public int getTimeout() {
return m_timeout;
}
/**
* set transaction timeout ( in seconds )
* @param timeout
*/
public void setTimeout(int timeout) {
m_timeout = timeout;
}
static class TrxMonitor implements Runnable
{
public void run()
{
for(;;)
{
if (Trx.s_cache != null && !Trx.s_cache.isEmpty())
{
Trx[] trxs = Trx.s_cache.values().toArray(new Trx[0]);
for(int i = 0; i < trxs.length; i++)
{
if (trxs[i].m_startTime <= 0)
continue;
long since = System.currentTimeMillis() - trxs[i].m_startTime;
if (since > trxs[i].getTimeout() * 1000)
{
trxs[i].log.log(Level.WARNING, "Transaction timeout. Name="+trxs[i].getTrxName() + ", timeout(sec)="+(since / 1000));
trxs[i].close();
}
}
}
try {
Thread.sleep(1000 * 10);
} catch (InterruptedException e) {
Thread.interrupted();
}
}
}
}
} // Trx