.tmp files in datastores ?

[RolandK]

by chance i found today, that i have some noticeable amount of .tmp files inside my datastores.

it looks , they are a little bit older

i guess they are remains of some interrupted jobs/ backup tasks or maybe crashes and it shouldn't harm to delete them ?

verify is perfectly fine for those DS

any clues ?

root@pbs01:/backuppool2# find . -name "*.tmp"| while read file;do ls -la $file ;done

-rw-r--r-- 1 backup backup 0 Apr 21 2021 ./ds-pve2-bnkw/.chunks/0a84/0a8435db270903219b3d60b74ceec2990eee3d7dce42e448577c39c81889f9f5.tmp
-rw-r--r-- 1 backup backup 1441792 Jul 31 2021 ./ds-pve2-bnkw/.chunks/2904/2904683a3200f6a34af70f092a054eb62059f2e7d86c3ae18b2c6ab850dea134.tmp
-rw-r--r-- 1 backup backup 393216 Apr 21 2021 ./ds-pve2-bnkw/.chunks/44ac/44ac92d304d83757aa3be5cb4a63120ef08c8bea81f55223e6a3a1344b10993a.tmp
-rw-r--r-- 1 backup backup 0 Jul 30 2021 ./ds-pve2-bnkw/.chunks/5577/55774b1a16f19874f1cd9527110bce53ca65f903293606dd4012991f1d5d3198.tmp
-rw-r--r-- 1 backup backup 917504 Jul 30 2021 ./ds-pve2-bnkw/.chunks/6f89/6f897fb6fb4f7f2fe7534e83b3c85cc9249664c6c65aa41f8c872e014815be68.tmp
-rw-r--r-- 1 backup backup 0 Jul 30 2021 ./ds-pve2-bnkw/.chunks/8002/8002a36474084f13bbd7c17f9a6fb5ee0daf276280afa8719bfe0f5a9ac94cf9.tmp
-rw-r--r-- 1 backup backup 524288 Jul 30 2021 ./ds-pve2-bnkw/.chunks/8e86/8e866222d7a2d6b678349665aad13f8219947e7a3143582a8b69d7c999d260c9.tmp
-rw-r--r-- 1 backup backup 0 Apr 21 2021 ./ds-pve2-bnkw/.chunks/bf6c/bf6cd742eca64470de9fb47802373dc1fee0e275f5719e219f73a0a41c6bd515.tmp
-rw-r--r-- 1 backup backup 0 Jul 30 2021 ./ds-pve2-bnkw/.chunks/ccb2/ccb2dcf73c5fe29189bde05d6a82b0ab926c560f73c7828a709f7f4db1e65532.tmp
-rw-r--r-- 1 backup backup 0 Jul 31 2021 ./ds-pve2-bnkw/.chunks/d7c3/d7c34083525b42024cf21d816bd16ccdf2517291554e219a8c6094c1989a198c.tmp
-rw-r--r-- 1 backup backup 0 Apr 21 2021 ./ds-pve2-bnkw/.chunks/eda1/eda10785c61113a172cd7771982705f57245e3feecb306b41fd2ee3c4b07f584.tmp
-rw-r--r-- 1 backup backup 0 Jul 31 2021 ./ds-pve-cluster3/.chunks/565d/565dc96766030bae51e848d02b02b4e02abfbd5d9dd75253679b8287c01ed982.tmp
-rw-r--r-- 1 backup backup 1572864 Jul 30 2021 ./ds-pve-cluster3/.chunks/9d54/9d544c1ac54ce326f2d55ce1a7332d37183b00c09e0593f3e980ebc7f4b7009c.tmp
-rw-r--r-- 1 backup backup 0 Jul 30 2021 ./ds-pve-cluster3/.chunks/c4b9/c4b940c4e169dc199dc3d70fdf126c378bf68514b1ed012586513c416c32f3b2.tmp
-rw-r--r-- 1 backup backup 0 Apr 28 2021 ./ds-pve1-bnkw/.chunks/2a81/2a81d93425095d0260c92e09f7dc7e093aa6bb05e84505eb5e598cc8cc0905f2.tmp
-rw-r--r-- 1 backup backup 0 May 3 2021 ./ds-pve1-bnkw/.chunks/3dd0/3dd0bf2d9962e8f96c6a28901ce20c45939d52ba4ba14cfb21960ecec24a43b1.tmp
-rw-r--r-- 1 backup backup 0 Apr 20 2021 ./ds-pve1-bnkw/.chunks/527b/527b2a7d7b53790b361f919e5c104a5980681f09ff62178b88e2b1fc182f6de7.tmp
-rw-r--r-- 1 backup backup 0 Jul 30 2021 ./ds-pve1-bnkw/.chunks/6271/62719498a3824fc6c377dbbc002bbaba954cbb8e72d534ea33c95845446fd504.tmp
-rw-r--r-- 1 backup backup 0 Apr 29 2021 ./ds-pve1-bnkw/.chunks/91ce/91ced598b753a103129574657c52b54cfa8d43406d1cc2e812f700628771275d.tmp
-rw-r--r-- 1 backup backup 0 Apr 16 2021 ./ds-pve1-bnkw/.chunks/d9af/d9af82e06bd3fc257492592c0c81c71d0c14f28cfe0bdcaa93921dd46789bea6.tmp
-rw-r--r-- 1 backup backup 131072 Apr 17 2021 ./ds-pve1-bnkw/.chunks/ddff/ddffb5cab4efb9bdfd7e2225e26ea3d51dbac53bc428af54db25b8aa9bc8c842.tmp
-rw-r--r-- 1 backup backup 0 Apr 20 2021 ./ds-pve1-bnkw/.chunks/deef/deef23246c41ee41cb4d277879110fd292bd43e75dd93325d5b1357e01fcff75.tmp
-rw-r--r-- 1 backup backup 0 May 3 2021 ./ds-pve1-bnkw/.chunks/e42c/e42c2285794a159fb4e9174ab7f160235fcdc299278270a31244780f6b9cb11b.tmp
-rw-r--r-- 1 backup backup 131072 Jul 30 2021 ./ds-pve1-bnkw/.chunks/efb2/efb22330ef23df1e010abc8ce81f9f952b9e79c7aaef6638d5d203197fda5fcc.tmp

 

[wbumiller]

Files are written to a temp file, synced, and then moved into place. If the backup was abnormally cancelled (crash, powerloss, etc.) the files can linger.
The code around this had a few changes since those dates (eg. the files would now end in `.tmp_<random letters>`), so I'd argue that these look old enough to just be removed. They wouldn't be found by a client trying to read out the chunks anyway.