Re: Reliable WAL file shipping over unreliable network

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Hi

On 01/03/18 14:10, Rui DeSousa wrote:
I’ve tested this and it seems that there is a still a bug in rsync (rsync  version 3.1.2  protocol version 31).  I used a 1GB archive filesytem to allow for an out of space test case.  Not sure of the actual cause as it seems to work a few times; however, it then fails leaving a truncated file and returning a success code.


Archive Script critical code:

OUTPUT=$(rsync -ac $XLOGFILE $ARCH_SERVER:$ARCH_DIR/$WALFILE)
if [ $? == 0 ]; then
    STS=0
    echo "Success: $WALFILE" >> /tmp/waltest.log
else
    echo "Failed: $WALFILE" >> /tmp/waltest.log
fi

exit $STS




Looking at the above snippet, $STS is not properly initialized in the failure section of the code...so you might be getting false 0 returns when rsync is actually setting some other value.

regards

Mark




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