+ flagfile="$STATEDIR/$host-$port.last-attempt"
+ flagfilesuccess="$STATEDIR/$host-$port.last-success"
+ if [ -n "$forcehostport" ]; then
+ if [ "$forcehostport" != "$host:$port" ]; then
+ log "Skipping $host:$port $version/$cluster because this run is limited to $host:$port."
+ runme=0
+ else
+ log "Forcing $host:$port $version/$cluster run."
+ runme=1
+ fi
+ else
+ if ! [ -e "$flagfile" ]; then
+ runme=1
+ log "Planning to run $host:$port $version/$cluster because no flag file exists."
+ else
+ now=$(date +%s)
+ mtime="$(stat --printf "%Y" "$flagfile")"
+ delta=$(( now - mtime ))
+ if [ "$delta" -lt "$MIN_WAIT" ]; then
+ runme=0
+ log "Skipping $host:$port $version/$cluster because last attempt was only $(format_timedelta "${delta}") (< $(format_timedelta "${MIN_WAIT}")) ago."
+ else
+ if ! [ -e "$flagfilesuccess" ]; then
+ runme=1
+ log "Planning to run $host:$port $version/$cluster because no success flag exists."
+ else
+ mtime="$(stat --printf "%Y" "$flagfilesuccess")"
+ delta=$(( now - mtime ))
+ if [ "$delta" -lt "$MIN_WAIT_SUCCESS" ]; then
+ runme=0
+ log "Skipping $host:$port $version/$cluster because last success was only $(format_timedelta "${delta}") (< $(format_timedelta "${MIN_WAIT_SUCCESS}")) ago."
+ elif [ "$delta" -gt "$MAX_WAIT_SUCCESS" ]; then
+ runme=1
+ log "Planning to run $host:$port $version/$cluster because last success was $(format_timedelta "${delta}") (>= $(format_timedelta "${MAX_WAIT_SUCCESS}")) ago."
+ else
+ # get a "randomish" but stable value for this backup run
+ val=$(echo "$MYHOSTNAME-$host-$port-$mtime" | sha256sum | head -c 8)
+ val=$((16#$val))
+ rnd_cuttoff=$(($val % $DELTA_WAIT_SUCCESS))
+ age_after_min=$((delta - MIN_WAIT_SUCCESS))
+ if [ "$age_after_min" -lt "$rnd_cuttoff" ]; then
+ runme=0
+ log "Skipping $host:$port $version/$cluster because random computer says wait ($(format_timedelta "${age_after_min}") < $(format_timedelta "${rnd_cuttoff}") (< $(format_timedelta "${DELTA_WAIT_SUCCESS}"))) + $(format_timedelta "${MIN_WAIT_SUCCESS}")."
+ else
+ runme=1
+ log "Planning to run $host:$port $version/$cluster because random computer says so ($(format_timedelta "${age_after_min}") >= $(format_timedelta "${rnd_cuttoff}"))."
+ fi
+ fi
+ fi
+ fi
+ fi
+ fi