/**
* Check the RepNode.currentCommitVLSN difference to see if there is any dirty data between two
* actions. We only do the flush when there exists dirty data.
*
* <p>The reason that why we only cares about the commit VLSN is those unlogged
* uncommitted/abort transaction will be aborted during recovery. It's useless to keep track of
* those VLSNs.
*/
@Override
public void run() {
final VLSN newTxnEndVLSN = repNode.getCurrentTxnEndVLSN();
/* Do nothing if no updates. */
if (newTxnEndVLSN == null) {
return;
}
if (lastTxnEndVLSN == null || newTxnEndVLSN.compareTo(lastTxnEndVLSN) == 1) {
lastTxnEndVLSN = newTxnEndVLSN;
repNode.getRepImpl().getLogManager().flush();
}
}
public LogFlushTask(RepNode repNode) {
this.repNode = repNode;
this.lastTxnEndVLSN = repNode.getCurrentTxnEndVLSN();
}
