The 1GB limit of /tmp will cause indexing failures and random system failures when other processes are unable to use /tmp Opened an upstream ticket https://bitbucket.org/medoc/recoll/issue/229/should-use-var-tmp-instead-of-tmp-for but I believe it is more fedora specific.
/tmp is set to tmpfs with size = (total RAM) / 2 For low end systems /tmp might be too small, you can disable /tmp as tmpfs feature with: systemctl mask tmp.mount See: http://fedoraproject.org/wiki/Features/tmp-on-tmpfs
There is no limit to the size of tarballs that recollindex will try to unpack and index so it could fail even on much larger systems. Also, somewhere I read that programs should not assume that more than 1GB is available?
What happened in my case: recoll sees a file "samsung32.image.bz2" which is a compressed image of a 32GB MicroSDHC card. Recoll will hapilly uncompress it in /tmp. Apparently this could bring down even high end machines if done on tmpfs and there is no limit how much space recoll may need. Meanwhile upstream says that there is the (currently undocumented) $RECOLL_TMPDIR and wont fix it. I am not even sure if /var/tmp is suitable, mine is on root and does not have terrabytes of storage.
On my systems /var is far less than 32GB any way, it's ~ 5GB. I don't see any quick fix here. Using /tmp as default seems sane to me.
recoll-1.20.6-1.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/recoll-1.20.6-1.fc20
recoll-1.20.6-1.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/recoll-1.20.6-1.fc21
recoll-1.20.6-1.fc22 has been submitted as an update for Fedora 22. https://admin.fedoraproject.org/updates/recoll-1.20.6-1.fc22
Package recoll-1.20.6-1.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing recoll-1.20.6-1.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2015-7819/recoll-1.20.6-1.fc20 then log in and leave karma (feedback).
recoll-1.20.6-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.
recoll-1.20.6-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.
recoll-1.20.6-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.