Empty reply from server when converting an existing table to WAL #2962
Description
Describe the bug
When 'alter table ABC set type WAL;' is executed, the server closes the connection with no response.
To reproduce
- Go to Web Console
- Execute 'alter table ABC set type WAL;'
- The server closes the connection with no response, resulting in:
- "An error occured, please try again" message is displayed
- The status is changed to "Error connecting to QuestDB"
- The list of tables is changed to "Cannot load tables An error occured, please try again"
Expected Behavior
The operation is successful.
The server responds with some kind of confirmation.
WebConsole does not display an error message.
Environment
- **QuestDB version**: questdb/questdb:7.0.0 (docker image)
- **OS**: Ubuntu 22.04.1 LTS, Docker version 20.10.22
- **Browser**: Firefox 109.0, curl 7.68.0Additional context
The curl log is as follows:
curl -v 'http://192.168.50.21:9000/exec?limit=0%2C1000&explain=true&count=true&src=con&query=alter%20table%20some_meter1%20set%20type%20WAL%3B%0A&timings=true' -H 'User-Agent: xx' -H 'Accept: */*' -H 'Accept-Language: en-US,en;q=0.5' -H 'Accept-Encoding: gzip, deflate' -H 'Referer: http://192.168.50.21:9000/' -H 'Connection: keep-alive' -H 'Cookie: xx'
* Trying 192.168.50.21:9000...
* TCP_NODELAY set
* Connected to 192.168.50.21 (192.168.50.21) port 9000 (#0)
> GET /exec?limit=0%2C1000&explain=true&count=true&src=con&query=alter%20table%20some_meter1%20set%20type%20WAL%3B%0A&timings=true HTTP/1.1
> Host: 192.168.50.21:9000
> User-Agent: xx
> Accept: */*
> Accept-Language: en-US,en;q=0.5
> Accept-Encoding: gzip, deflate
> Referer: http://192.168.50.21:9000/
> Connection: keep-alive
> Cookie: xx
>
* Empty reply from server
* Connection #0 to host 192.168.50.21 left intact
curl: (52) Empty reply from server
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