[Bill Allombert]
> We move the popcon cronjob to cron.dayly, and pick a random weekday
> for each submitter. The dayly cronjob check if it is running on this
> weekday before reporting, else it abort immediatly.
Here is a draft patch to implement this. It does not address the
renaming/moving of the cron job from cron.weekly to cron.daily. This
need to be handled as well. I hope splitting the submissions into 7
equal slots will reduce the load enough for all submissions to make it
thought. If not, we might need to spread it out even further.
Index: cron.weekly
===================================================================
RCS file: /cvsroot/popcon/popularity-contest/debian/cron.weekly,v
retrieving revision 1.25
diff -u -3 -p -r1.25 cron.weekly
--- cron.weekly 18 Mar 2008 08:38:32 -0000 1.25
+++ cron.weekly 19 Mar 2008 11:38:54 -0000
@@ -26,6 +26,11 @@ if [ -n "$HTTP_PROXY" ]; then
export http_proxy="$HTTP_PROXY";
fi
+# Only run on the given day, to spread the load on the server a bit
+if [ "$DAY" ] && [ "$DAY" != "$(date +%w)" ] ; then
+ exit 0
+fi
+
# keep old logs
cd /var/log
umask 022
Index: postinst
===================================================================
RCS file: /cvsroot/popcon/popularity-contest/debian/postinst,v
retrieving revision 1.19
diff -u -3 -p -r1.19 postinst
--- postinst 29 Oct 2006 08:58:26 -0000 1.19
+++ postinst 19 Mar 2008 11:38:54 -0000
@@ -34,8 +34,15 @@ generate_id() {
fi
}
+# Select a random day to submit on, to spread the load over time, unless it is
already set.
+select_random_day() {
+ RANDOM=$(dd if=/dev/urandom count=1 2> /dev/null | cksum | cut
-c"1-5")
+ DAY=$(($RANDOM % 7))
+}
+
generate_conffile() {
generate_id
+ select_random_day
cat <<-EOF >$conffile
# Config file for Debian's popularity-contest package.
#
@@ -50,6 +57,7 @@ generate_conffile() {
MY_HOSTID="$MY_HOSTID"
PARTICIPATE="$PARTICIPATE"
USEHTTP="yes"
+ DAY="$DAY"
EOF
# preseeding is only allowed on first time install
@@ -77,6 +85,13 @@ case "$1" in
# of behaviour with stdin. version 1.17, 2004-04-12.
*-) MY_HOSTID="${MY_HOSTID% -}";;
esac;
+
+ # If DAY is not set, add it.
+ if [ -z "$DAY" ] ; then
+ select_random_day
+ echo "DAY=\"$DAY\"" >> $conffile
+ fi
+
# Replace only if the content changed, to avoid changing the
# config file date when no change was done.
Happy hacking,
--
Petter Reinholdtsen
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