GWT DevMode filling up tmp directory
gwt
Solution
1GB is too much for development purposes. The only reason I can think of is that you have set a lot of permutations in your .gwt.xml file. You should reduce the number of permutations during development to the minimum ( only include the specs you are using). You can use the DevGuideCompileReport to locate the problem.
Edit:
The common issue has been reported by other users. It has to do with the eclipse plugin not deleting the temp files correctly. The issue has been reported and had a lot of attention from GWT users, but no concrete patch has been released. The workarounds were to manually delete the files or to write a script to do the work for you:
google-plugin-for-eclipse-issue74
Problem
GWT 2.5.1 Anytime running GWT `DevMode` generates a new huge cache file under `/tmp` directory now, consequently the `OS` warns `low disk space`. However, this problem has never popped up in the past. The file `gwtXXXbyte-cache` (XXX being a long random number) is nearly `1 GB big`. Is it normal? The cache file is cleaned up automatically after the DevMode session ends. BTW, rebooting the machine doesn't help. @EDIT In comparison above, running GWT starter application on `DevMode` generates the new cache file about `50 MB size`. Is it oversize, too? @EDIT 2 I modifed GWT UI releated source code and ran `DevMode` again. Later, the new huge cache file `gwtYYYbyte-cache` (YYY being another long random number) was generated with the `same size` as before - exact number of bytes. Any ideas? @EDIT 3 After manual removal of `./gwt-unitCache`, `./war/WEB-INF/deploy` and `./war/ZZZ` directory (ZZZ being the hosted GWT application on `DevMode`), the next `DevMode` session generates the `/tmp/gwtXXXbyte-cache` file shrinking to `a few KB`. @EDIT 4 Launching `DevMode` with the option `-workDir DDD` (DDD being another writable directory) doesn't work. The cached staffs keep writing to the default `/tmp` directory.