/tmp partition full, should I worry?

/tmp partition full, should I worry? - Printable Version

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+--- Thread: /tmp partition full, should I worry? (/showthread.php?tid=5442)

/tmp partition full, should I worry? - rbourgeon - 29.05.2024

Hello,
I have noticed that on some of my LM's, the partition mounted on /tmp is full, for instance, in the "Partitions" dialog:

tmpfs 124.5M 124.0M (100%) 528.0K /tmp

Is this normal? Or should I worry about it? How can this be solved?

Furthermore, I executed the following Lua code to inspect which are the files inside /tmp and which are the ones that take up the most space in the partition:

Code:
local command = "find /tmp -type f -exec ls -l {} + | awk '{print $5, $9}' | sort -nr 2>&1"

local result = io.popen(command):read("*a"):trim()

log(result)

Here are the first lines of the result:

Code:
8670716 /tmp/lua_MgIPLL

8670257 /tmp/lua_NNPkKE

8670122 /tmp/lua_LjNhiA

8669658 /tmp/lua_OoIiJP

8669051 /tmp/lua_npLNGJ

8668460 /tmp/lua_EKcfhn

8668256 /tmp/lua_oApkAo

8665087 /tmp/lua_iNFJGL

8661846 /tmp/lua_naliMb

8661725 /tmp/lua_cAGiJK

8661703 /tmp/lua_IOjJIN

8661114 /tmp/lua_hokPHE

8660365 /tmp/lua_mAkAlP

4874240 /tmp/scada.db

1691648 /tmp/log/debug.log.2

1179397 /tmp/log/debug.log

34417 /tmp/scripting/210.lua

32810 /tmp/scripting/358.lua

24529 /tmp/scripting/340.lua

23334 /tmp/scripting/320.lua

18756 /tmp/lp/2b36717769101395fb60f21c4e1acd71/1686556848.lua

As you can see with the numbers (that are file sizes in bytes), the 14 most heavy files (lua_xxxxx where xxxxxx seems to be a random sequence of 6 letters) each take up ~8'668'000 bytes which is 8.25 MB.

8.25 MB times 14 is about 115 MB, so these 14 files account for about 115 MB of the 124 MB used space in the /tmp partition, that is to say, the vast majority of it.

So, what are these files? Why do they take up so much space in this partition, and is this a problem? If it is, what can be done to address the situation?

RE: /tmp partition full, should I worry? - admin - 29.05.2024

Such files can come from failed file uploads or not cleaning up temporary files in .lp scripts.
If /tmp is full then the system won't be able to function properly.

RE: /tmp partition full, should I worry? - rbourgeon - 29.05.2024

Okay, so independently from the issue of understanding why they appeared in my specific case, can I safely delete these files?

RE: /tmp partition full, should I worry? - admin - 29.05.2024

You can delete them. You can also reboot LM and everything in /tmp will be cleared because it's placed in RAM.