How I disable or enable cache in NC?
Take a look at the parameter NC_CACHE_SIZE in eucalyptus.conf on the NC. Any value below 10 will disable caching.
By default neither NC_CACHE_SIZE nor NC_WORK_SIZE are set, which
causes the NC to pick values based on disk space available when NC is
first started. If you end up setting NC_CACHE_SIZE, I recommend setting
NC_WORK_SIZE, too, so that you know exactly what to expect.
How I clean the cache in NC?
To clean out the cache, you must terminate all running instances on
the NC (since the cache is used as part of a copy-on-write clone of the
disk image of the instance) first. Then you can just ‘rm -rf’ everything
in $INSTANCE_PATH/eucalyptus/cache directory.
restart the two hosts: frontend and node controller
:)
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