Recently I noticed that I had surprisingly little free space on my root partition. Some investigation revealed a 6.8GB “/usr/local/crashplan/cache/42” directory.
The fix was pretty easy to find for MacOS, and for convenience I’m reposting the instructions suited for Linux. Firstly, to quote the page:
CrashPlan does not have the ability to limit the size of the Cache file though you can modify the New Version (every x [time]) setting to help prevent the Cache file from growing to quickly. You can find this setting by opening CrashPlan and viewing Settings > Backup (Sets) > Frequency and versions > New version.
To clear the cache, do the following:
- Launch CrashPlanDesktop (from terminal, or, Alt-F2 CrashPlanDesktop)
- Double-click the CrashPlan logo in the upper right corner.
- In the text input area at the very bottom of the CrashPlan desktop, type: backup.replace 42
- Press Enter.
- In the text input area at the very bottom of the CrashPlan desktop, type: restart
- Press Enter.
That’s it. These instructions are close to identical to those in the original post from MacIT Solutions, but I had no need to manually delete the cache directory after the steps above.
The result (after a resync) was a cache directory that was 0.6GB instead of 6.8GB (in my case).
Ref: http://support.crashplan.com/doku.php/recipe/stop_and_start_engine