On Tue, Dec 22, 2009 at 12:43:09AM +0800, Jiaju Zhang wrote:
[snip]
> +save_tcp_connections() {
> + mydir=$OCF_RESKEY_tickle_dir/`hostname`
> + rm -f $mydir/*
> + netstat -tn |egrep
> '^tcp[[:space:]]+[0-9]+[[:space:]]+[0-9]+[[:space:]]+[0-9\.]+:[0-9]+.*ESTABLISHED'
> |
> + awk '{print $4" "$5}' |
> + while read server client; do
> + ip=${server%:*}
> + echo $client $server >> $mydir/$ip
> + done
> +}
Can the filtering being done be egrep be rolled into the awk script?
> +
> +run_tickle_tcp() {
> + for f in $OCF_RESKEY_tickle_dir/*/$OCF_RESKEY_ip; do
> + [ -f $f ] && cat $f | while read client server; do
> + for i in `seq 1 3`; do
> + $TICKLETCP $client $server
> + done
> + done
> + done
> +}
> +
Would it be worth allowing $TICKLETCP to tickle multiple connections
in a single invocation - for instance by reading $client $server from stdin?
I'm concerned about a situation where there are lots of connections,
it might take a while to spawn $TICKLETCP lots of times.
[snip]
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