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Hi Ady, We developed a small plugin called ApMon for Application Monitoring. This also sends UDP datagrams containing multiple parameters from instrumented applications to a MonALISA service. We managed to send and process on the fly about 5000 datagrams per second without any packet loss. If, for example, each node would send one datagram each 30s, I think that this processing could be easily done in real time. Cheers, Catalin. Andy Hanushevsky wrote: > Hi Catlin, > > Just to make sure we are on the same "page" so to speak. You can get > auto-flushing but you must create a monitoring stream that does not > include I/O events. Monitoring streams that include I/O events cannot be > flushed. So, if you add in files events then you wind up delaying files > information as well. If you really need i/o events (generally, these > events tell you little about the server and are only useful for tuning > an application), send them to an offline data collector. Beleive me, in > a real-life system you will not be able to analyze i/o events in real time. > > Andy >