libasyncProfiler-linux-x64.so dump in /tmp

[MaBauMeBad]

Hi,

we use the current 2.1.2 Version to gather the profiles from our Java wildfly application deployments.

We notice many <USERNAME>-pyroscope<RANDOM-NUMBER> directories in the /tmp directory of the applications.
Within these directories are always a libasyncProfiler-linux-x64-<RANDOM-NUMBER>.so file.

Over a few days these directories quickly consume 15 GB and going.

Example:

de:/tmp # ls -l
drwx------ 2 <USER> <GROUP> 4096 Jan 23 01:25 <USER>-pyroscope10007989663887495671
drwx------ 2 <USER> <GROUP> 4096 Jan 21 15:45 <USER>-pyroscope10012825659281281608
drwx------ 2 <USER> <GROUP> 4096 Jan 21 23:00 <USER>-pyroscope10014036742711060812
drwx------ 2 <USER> <GROUP> 4096 Jan 22 04:30 <USER>-pyroscope10016341429057459220
drwx------ 2 <USER> <GROUP> 4096 Jan 23 05:43 <USER>-pyroscope10021521715323384330
drwx------ 2 <USER> <GROUP> 4096 Jan 22 01:01 <USER>-pyroscope10026068663342026847
drwx------ 2 <USER> <GROUP> 4096 Jan 23 01:06 <USER>-pyroscope10030053697773365765
drwx------ 2 <USER> <GROUP> 4096 Jan 21 22:36 <USER>-pyroscope1004060422333700746
drwx------ 2 <USER> <GROUP> 4096 Jan 21 21:14 <USER>-pyroscope10044648473989567707
drwx------ 2 <USER> <GROUP> 4096 Jan 22 21:57 <USER>-pyroscope10050690916701502291
drwx------ 2 <USER> <GROUP> 4096 Jan 21 10:43 <USER>-pyroscope10051623230129472605
drwx------ 2 <USER> <GROUP> 4096 Jan 23 07:44 <USER>-pyroscope10053846548520358818
drwx------ 2 <USER> <GROUP> 4096 Jan 22 13:42 <USER>-pyroscope10054852968457409904
drwx------ 2 <USER> <GROUP> 4096 Jan 23 10:56 <USER>-pyroscope10058046168975555431
drwx------ 2 <USER> <GROUP> 4096 Jan 22 21:30 <USER>-pyroscope100589165838902806
drwx------ 2 <USER> <GROUP> 4096 Jan 22 11:27 <USER>-pyroscope10062468989413554577
drwx------ 2 <USER> <GROUP> 4096 Jan 22 15:36 <USER>-pyroscope1006497513880083840
drwx------ 2 <USER> <GROUP> 4096 Jan 22 00:16 <USER>-pyroscope10074157862200598295
drwx------ 2 <USER> <GROUP> 4096 Jan 21 16:59 <USER>-pyroscope10076555267520939339
drwx------ 2 <USER> <GROUP> 4096 Jan 21 11:27 <USER>-pyroscope10078253711349513142
drwx------ 2 <USER> <GROUP> 4096 Jan 21 20:53 <USER>-pyroscope10086459638048789169

de:/tmp # ls -l <USER>-pyroscope10007989663887495671
-rw-r--r-- 1 <USER> <GROUP> 534792 Jan 23 01:25 libasyncProfiler-linux-x64-d73f214b50539537b06070b954cbc95c10a06024.so

We set the following options via envs:

PYROSCOPE_APPLICATION_NAME="<host/app-name>"
PYROSCOPE_SERVER_ADDRESS=http://localhost:4040
PYROSCOPE_PROFILER_ALLOC=512k
PYROSCOPE_PROFILER_LOCK=10ms
PYROSCOPE_EXPORT_COMPRESSION_LEVEL_JFR=BEST_COMPRESSION
PYROSCOPE_ALLOC_LIVE=true

Any idea why the filesystem is crushed with these files ?

Thanks in advance !