I've recently upgraded to version 7.0 but I've been having this problem since before then.  What essentially happens is my unRaid server becomes unresponsive from the GUI but all of the docker containers and VMs seem to function normally.  When I log into the CLI and view the the tail of the syslog, I see these errors scrolling by continuously:

Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: *770441 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/diagnostics?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [crit] 2632135#2632135: ngx_slab_alloc() failed: no memory
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: shpool alloc failed
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: nchan: Out of shared memory while allocating channel /diagnostics. Increase nchan_max_reserved_memory.
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: *770442 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/diagnostics?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [crit] 2632135#2632135: ngx_slab_alloc() failed: no memory
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: shpool alloc failed
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: nchan: Out of shared memory while allocating channel /diagnostics. Increase nchan_max_reserved_memory.
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: *770443 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/diagnostics?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [crit] 2632135#2632135: ngx_slab_alloc() failed: no memory
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: shpool alloc failed
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: nchan: Out of shared memory while allocating channel /diagnostics. Increase nchan_max_reserved_memory.
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: *770444 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/diagnostics?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [crit] 2632135#2632135: ngx_slab_alloc() failed: no memory
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: shpool alloc failed
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: nchan: Out of shared memory while allocating channel /diagnostics. Increase nchan_max_reserved_memory.
Jan 13 20:33:55 Tower nginx: 2025/01/13 20:33:55 [error] 2632135#2632135: *770445 nchan: error publishing message (HTTP status code 507), client: unix:, server: , request: "POST /pub/diagnostics?buffer_length=1 HTTP/1.1", host: "localhost"

 

I was able to run diagnostics from the CLI while this is happening but I am not sure if it is anonymizing the sensitive information so I'm attaching a diagnostics that I was able to run after restarting my unraid server, which seems to be the only way I've been able to resolve this issue...until it happens again. If there is a way to anonymize the diagnostics from the CLI in case the attached doesn't highlight where my problem is since it was captured when the server was in a stable state?


 

tower-diagnostics-20250113-2341.zip

I had a similar issue today.

Edited January 14, 20251 yr by Gragorg