Hi Rooters! We are using ROOT for online monitoring http://emcal06.rhic.bnl.gov/~onuchin/Sproot/html/USER_Index.html One of the main our problems is providing fault tolerant processing = providing recovery from system/ROOT/process failure. If anybody has solutions or experience how to deal with it ? With best regards, Valery P.S. Suppose similar problems must be in offline processing too, e.g. AtlasFast and Star have a chain of makers, what do you do when one of the makers crashed your root session? ... and suggestion we are using TMapFiles for local storage of processed data http://emcal06.rhic.bnl.gov/~onuchin/Sproot/html/DbManager.html after introducing TMapRec it became possible to loop over objects in TMapFile , but could you(Fons) change TMapFile:AcquireSemaphore() and TMapFile::ReleaseSemaphore() from protected to public ?
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