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Hi! I got an xrootd dump log (with xrootd used from python) where for first time i see a lot of messages like: [2023-02-14 10:25:10.730375 +0100][Debug ][Utility ] In the child fork handler for process 24953 [2023-02-14 10:25:10.730445 +0100][Debug ][Utility ][24953] Running the child fork handler for process 24953 [2023-02-14 10:25:10.730450 +0100][Debug ][Utility ][24953] Unlocking File and FileSystem objects for process: 24953 [2023-02-14 10:25:10.752924 +0100][Debug ][Utility ][24929] In the prepare fork handler for process 24929 i am aware of XRD_RUNFORKHANDLER and the explanation that: "Determines whether the fork handlers should be enabled, making the API fork safe. Default: 0" (also, why the default is disabled for such a good thing?) but it's not clear to me the internal mechanics of what is going on .. i presume that it's related to xrootd own internal multi-process loop for processing the copy jobs, but could someone tell me more about this? why is not default, and what exactly is going on? Thanks a lot!! Adrian ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1