seaweedfs: Webdav server stops responding after saving some files

WebDav server stop responding after file with some extension was uploaded.

My configuration: I have 3 nodes in cluster. Every node runs 2 docker-container:

• official cockroachdb container for filer metadata (v.20.1.0)
• my custom seaweedfs container with:

• weed master -ip=b-img02 -mdir=/opt/seaweedfs/data/master -peers=b-img00:9333,b-img01:9333,b-img02:9333 -defaultReplication=200
• weed volume -ip=b-img02 -mserver=b-img00:9333,b-img01:9333,b-img02:9333 -dataCenter=b-img02 -rack=rack -dir=/opt/seaweedfs/data/
• weed filer -collection=filer -defaultReplicaPlacement=200
• weed webdav Weed version: 30GB 1.79

All works fine until I trying to upload file in filer.

In examples I create test file, upload it into filer and download from webdav.

Example#1 - all works fine

echo ok > data.html

curl -F file=@data.html http://b-img00:8888/
>> {"name":"data.html","size":3,"fid":"7,08ba03a642ff84","url":"http://b-img02:8080/7,08ba03a642ff84"}

curl -vvv http://b-img00:7333/data.html
*   Trying x.x.x.x...
* TCP_NODELAY set
* Connected to b-img00 (x.x.x.x) port 7333 (#0)
> GET /data.html HTTP/1.1
> Host: b-img00:7333
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Accept-Ranges: bytes
< Content-Length: 3
< Content-Type: text/html; charset=utf-8
< Etag: "161503d94245de003"
< Last-Modified: Wed, 03 Jun 2020 11:04:35 GMT
< Date: Wed, 03 Jun 2020 11:04:57 GMT
<
ok
* Connection #0 to host b-img00 left intact

curl -X DELETE -vvv http://b-img00:7333/data.html
*   Trying x.x.x.x...
* TCP_NODELAY set
* Connected to b-img00 (x.x.x.x) port 7333 (#0)
> DELETE /data.html HTTP/1.1
> Host: b-img00:7333
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 204 No Content
< Date: Wed, 03 Jun 2020 11:08:15 GMT
<
* Connection #0 to host b-img00 left intact

Ok. Example#2 - I change file extention from .html to .txt After file uploaded webdav stops to serv folder with this file (it can be downloaded via filer successfully). Another folders in webdav works fine.

echo ok > data.txt

curl -F file=@data.txt http://b-img00:8888/

curl -vvv http://b-img00:7333/data.txt
*   Trying xx.xx.xx.xx...
* TCP_NODELAY set
* Connected to b-img00 (xx.xx.xx.xx) port 7333 (#0)
> GET /data.txt HTTP/1.1
> Host: b-img00:7333
> User-Agent: curl/7.58.0
> Accept: */*
>
(( I await some time - but no response received ))
^C

curl -vvv http://b-img00:8888/data.txt
*   Trying xx.xx.xx.xx...
* TCP_NODELAY set
* Connected to b-img00 (xx.xx.xx.xx) port 8888 (#0)
> GET /data.txt HTTP/1.1
> Host: b-img00:8888
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Accept-Ranges: bytes
< Content-Disposition: inline; filename="data.txt"
< Content-Length: 3
< Content-Type: text/plain
< Etag: "908e596f"
< Last-Modified: Wed, 03 Jun 2020 11:09:35 GMT
< Date: Wed, 03 Jun 2020 11:10:06 GMT
<
ok
* Connection #0 to host b-img00 left intact

curl -X DELETE http://b-img00:8888/data.txt
(ok)