Redmine

== Boot cache

Redmine uses bootsnap to speed up its startup. On the first start it writes

a cache of compiled Ruby files and resolved load paths under tmp/cache, and

later starts reuse it. The cache can be deleted at any time by running:

  bin/rails tmp:cache:clear

It is rebuilt on the next start.

If tmp/cache is on slow storage, such as a network file system, reading the

cache can take longer than the work it saves, and startup gets slower

instead of faster. In that case, move the cache to local storage by setting

the environment variable BOOTSNAP_CACHE_DIR to a directory that the user

running Redmine can write to, for example:

  BOOTSNAP_CACHE_DIR=/var/cache/redmine bin/rails server -e production

The cache then lives in a "bootsnap" subdirectory there, which

`bin/rails tmp:cache:clear` does not remove; delete it yourself when you

want to clear the cache.

Alternatively, start Redmine without the cache by setting DISABLE_BOOTSNAP=1:

  DISABLE_BOOTSNAP=1 bin/rails server -e production