[GH-ISSUE #2290] Use s3fs version 1.92 to generate a large number of hidden ".fs-detect" files in the mount root directory. What does this do? #1142

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opened 2026-03-04 01:51:42 +03:00 by kerem · 2 comments

kerem commented

2026-03-04 01:51:42 +03:00

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Originally created by @huihuikj on GitHub (Aug 23, 2023).
Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/2290

Use s3fs version 1.92 to generate a large number of hidden ".fs-detect" files in the mount root directory. What does this do?

Additional Information
Version of s3fs being used
V1.92

Version of fuse being used
2.9.2

Kernel information
3.10.0-862.el7.x86_64

How to run s3fs, if applicable

$ /usr/bin/s3fs bucketname /mnt/mys3fs -o compat_dir -o use_wtf8 -o listobjectsv2 -o dbglevel=info -f -o curldbg  -o passwd_file=/home/huihui/.password-s3fs -o url=https://xxx.xxx.com:443 -o use_path_request_style -o allow_other -o nonempty

$ ls -a
.fs-detect.xxxxx      .....

$ cat .fs-detect.xxxxx
FS-RW2023-08-22 15:55:33

$ cat s3log
[CURL DBG] > PUT /bucketname/.fs-detect.xxxxx HTTP/1.1
[INF] curl.cpp:insertV4headers(2891):computing signature [PUT]

Originally created by @huihuikj on GitHub (Aug 23, 2023). Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/2290 ### Use s3fs version 1.92 to generate a large number of hidden ".fs-detect" files in the mount root directory. What does this do? Additional Information Version of s3fs being used V1.92 Version of fuse being used 2.9.2 Kernel information 3.10.0-862.el7.x86_64 How to run s3fs, if applicable ```shell $ /usr/bin/s3fs bucketname /mnt/mys3fs -o compat_dir -o use_wtf8 -o listobjectsv2 -o dbglevel=info -f -o curldbg -o passwd_file=/home/huihui/.password-s3fs -o url=https://xxx.xxx.com:443 -o use_path_request_style -o allow_other -o nonempty ``` ``` $ ls -a .fs-detect.xxxxx ..... $ cat .fs-detect.xxxxx FS-RW2023-08-22 15:55:33 $ cat s3log [CURL DBG] > PUT /bucketname/.fs-detect.xxxxx HTTP/1.1 [INF] curl.cpp:insertV4headers(2891):computing signature [PUT] ```

kerem

2026-03-04 01:51:42 +03:00

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kerem commented

2026-03-04 01:51:43 +03:00

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@gaul commented on GitHub (Sep 8, 2023):

s3fs does not generate these files -- some other process on your system is doing this. If you compile from master then ee49ca4abf should tell you which pid is responsible. Can you try this and tell us what is creating these?

@gaul commented on GitHub (Sep 8, 2023): s3fs does not generate these files -- some other process on your system is doing this. If you compile from master then ee49ca4abfce5dc711b02a2c0b71658c9fc996d2 should tell you which pid is responsible. Can you try this and tell us what is creating these?

kerem commented

2026-03-04 01:51:43 +03:00

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@huihuikj commented on GitHub (Sep 14, 2023):

Sorry, after our investigation, we found that it was caused by the monitoring written by the business side.

@huihuikj commented on GitHub (Sep 14, 2023): Sorry, after our investigation, we found that it was caused by the monitoring written by the business side.

kerem referenced this issue

2026-03-04 02:02:27 +03:00

[PR #1142] [MERGED] Expose base parameter in s3fs_strtoofft #1847