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Morris Jette authored
Added "KeepAliveTime" configuration parameter From Matthieu Hautreux: TCP_KEEPALIVE addition. No TCP_KEEPALIVE seems to be configured in SLURM TCP exchanges, thus letting the system potentially deadlocked if a remote host dissapear and the local host is waiting on a read (the write would result in a EPIPE or SIGPIPE depending on the masked signals). Adding keepalive with a relatively large timeout value (5 minutes), could enhance the resilience of SLURM for unexpected packet/connection loss without too much implication on the scalability of the solution. The timeout could be configurable in case it is find too aggresive for particular configurations.
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