I’ve got a reasonably fresh install of Nexus 3.37 OSS. I’ve been uploading packages from our old repository to it (via a bash script and a whole lot of curl posts), and notice that it seems to create lots of files in /tmp/nexus (ie. the tmp files storage location). It seems to delete some of these files, but continues to hold on to them, so the space is not returned to the operating system.
For example:
ls -l /tmp/nexus
-rw------- 1 nexus nexus 390627 Dec 6 10:36 9062782825936012913
-rw------- 1 nexus nexus 622831 Dec 6 10:39 9084232273460070609
-rw------- 1 nexus nexus 394072 Dec 6 10:41 9138135933766907165
-rw------- 1 nexus nexus 389640 Dec 6 10:35 9151339699576066519
...
(many files)
...
-rw------- 1 nexus nexus 625609 Dec 6 10:34 9153070826058366339
-rw------- 1 nexus nexus 625609 Dec 6 10:34 9177819176709486065
-rw------- 1 nexus nexus 386190 Dec 6 10:32 949051065493728029
-rw------- 1 nexus nexus 636119 Dec 6 10:45 949248672174908945
drwxr-xr-x 2 nexus nexus 4096 Dec 6 10:07 fileinstall--3095047162722324364
drwxr-xr-x 2 nexus nexus 4096 Dec 6 10:04 groovy-classes
drwxr-xr-x 2 nexus nexus 4096 Dec 6 10:08 nexus-ehcache
drwxr-xr-x 2 nexus nexus 4096 Dec 6 10:08 nexus-extdirect
drwxr-xr-x 2 nexus nexus 4096 Dec 6 10:09 outreach
Further, if look at lsof for the Java process, I see much the same:
java 89748 nexus 1304w REG 202,1 631113 277346 /tmp/nexus/1230783275107600165
java 89748 nexus 1305w REG 202,1 142668 277347 /tmp/nexus/3148034049482297053 (deleted)
java 89748 nexus 1306w REG 202,1 119149 277348 /tmp/nexus/1743810799457723591 (deleted)
java 89748 nexus 1307w REG 202,1 78187 277353 /tmp/nexus/5382883696070689459
java 89748 nexus 1308w REG 202,1 64860 277354 /tmp/nexus/8492441650099179080
java 89748 nexus 1310w REG 202,1 623825 277349 /tmp/nexus/6093362345927975447
java 89748 nexus 1311w REG 202,1 140930 277350 /tmp/nexus/3076188474774348371 (deleted)
java 89748 nexus 1312w REG 202,1 116986 277351 /tmp/nexus/1555700769386461673 (deleted)
java 89748 nexus 1315w REG 202,1 631113 277355 /tmp/nexus/7795946018788676346
java 89748 nexus 1316w REG 202,1 142668 277356 /tmp/nexus/597848602303470373
Looking at these files, they look like logs of package meta information, for the packages I’ve uploaded. Deleting the files doesn’t do much, I have to restart the Nexus process to get it to release the files (so the OS can actually free the disk space).
I’m in a slightly unusual situation in that I’m constantly uploading lots of packages (which is perhaps accelerating this problem), but I’m worried that at other times this will just be a slow creeping death. Any ideas what I can do about this?
