RAM CACHE and Stale-if-error option

Hi Mic,

 

 

I don't believe this is possible currently. You could open a case with F5 Support to confirm this. If that's true for now, you could request an enhancement to support this type of functionality. I think it could make a good feature.

 

 

Thanks, Aaron

Hi Aaron,

 

 

thanks for your quick reply.

 

I opened a case with F5 support. hope they will answer quickly.

 

I was taking a look in the BIG-IP guide and found nothing on this.

 

But maybe this option avaible with the webaccelerator module only..

 

 

Thanks

 

 

Mic

Hi Aaron,

 

 

I had the reponse from F5 support and they said it's not possible with RAM cache profile.

 

 

I have another idea, let me know if you could help me.

 

I will increase the max-age to 1week in the profile and will set use this script to clear the cache:

 

 

Save the output file name as the script name

 

OUT=/var/log/`basename $0`.out

 

 

Print the date and script name

 

echo "`date +%Y%m%d_%H%M%S`: `basename $0`: starting" >> $OUT

 

 

List the current RAM cache entries for one HTTP profile

 

echo "Entries before delete:" >> $OUT

 

b profile http HTTP_1 ramcache entry show >> $OUT

 

 

Delete current RAM cache entries for one HTTP profile

 

b profile http HTTP_1 ramcache entry all delete

 

 

List the current RAM cache entries for one HTTP profile

 

echo "Entries after delete:" >> $OUT

 

b profile http HTTP_1 ramcache entry show >> $OUT

 

 

BUT i'd like to include a condition:

 

If Pool_1 is down, then do not delete the RAMCACHE.

 

 

Do you know to write this?

 

 

Thanks

 

 

Mic

Hi Mic,

 

 

You could try something like this:

 

 

tmsh show ltm pool $pool_name | grep 'Availability : offline'

 

 

Aaron