I've been waiting all day for a single 60GB file to copy over to my otherwise empty 2TB cache drive on my unRAID 6.11.5 server (8GB RAM installed - nothing but file sharing enabled). It's going at about 1MB/s (and it is going to the cache drive and not the array, as I can see it writing to the cache drive).

 

Dashboard says that RAM is only about 23% used.

 

However, the log is full of memory errors. Any idea what might be going on?  Diagnostics file attached.

 

Jan 15 21:37:48 UNRAID-02 nginx: 2023/01/15 21:37:48 [crit] 1250#1250: ngx_slab_alloc() failed: no memory
Jan 15 21:37:48 UNRAID-02 nginx: 2023/01/15 21:37:48 [error] 1250#1250: shpool alloc failed
Jan 15 21:37:48 UNRAID-02 nginx: 2023/01/15 21:37:48 [error] 1250#1250: nchan: Out of shared memory while allocating message of size 7997. Increase nchan_max_reserved_memory.
Jan 15 21:37:48 UNRAID-02 nginx: 2023/01/15 21:37:48 [error] 1250#1250: *1052152 nchan: error publishing message (HTTP status code 500), client: unix:, server: , request: "POST /pub/devices?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 15 21:37:48 UNRAID-02 nginx: 2023/01/15 21:37:48 [error] 1250#1250: MEMSTORE:00: can't create shared message for channel /devices
Jan 15 21:37:49 UNRAID-02 nginx: 2023/01/15 21:37:49 [crit] 1250#1250: ngx_slab_alloc() failed: no memory
Jan 15 21:37:49 UNRAID-02 nginx: 2023/01/15 21:37:49 [error] 1250#1250: shpool alloc failed
Jan 15 21:37:49 UNRAID-02 nginx: 2023/01/15 21:37:49 [error] 1250#1250: nchan: Out of shared memory while allocating message of size 7997. Increase nchan_max_reserved_memory.
Jan 15 21:37:49 UNRAID-02 nginx: 2023/01/15 21:37:49 [error] 1250#1250: *1052158 nchan: error publishing message (HTTP status code 500), client: unix:, server: , request: "POST /pub/devices?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 15 21:37:49 UNRAID-02 nginx: 2023/01/15 21:37:49 [error] 1250#1250: MEMSTORE:00: can't create shared message for channel /devices
Jan 15 21:37:50 UNRAID-02 nginx: 2023/01/15 21:37:50 [crit] 1250#1250: ngx_slab_alloc() failed: no memory
Jan 15 21:37:50 UNRAID-02 nginx: 2023/01/15 21:37:50 [error] 1250#1250: shpool alloc failed
Jan 15 21:37:50 UNRAID-02 nginx: 2023/01/15 21:37:50 [error] 1250#1250: nchan: Out of shared memory while allocating message of size 7997. Increase nchan_max_reserved_memory.
Jan 15 21:37:50 UNRAID-02 nginx: 2023/01/15 21:37:50 [error] 1250#1250: *1052169 nchan: error publishing message (HTTP status code 500), client: unix:, server: , request: "POST /pub/devices?buffer_length=1 HTTP/1.1", host: "localhost"
Jan 15 21:37:50 UNRAID-02 nginx: 2023/01/15 21:37:50 [error] 1250#1250: MEMSTORE:00: can't create shared message for channel /devices

 

unraid-02-diagnostics-20230116-0251.zip

Maybe not the solution to your immediate problem, but if you intend more than simple NAS functionality, you need more RAM.

 

Have you done memtest?

 

 

Also fix your UPS connectivity problem.

 Yes, I know I have a UPS issue - it's an ancient APC with a network card in the back, and I think it's just responding too slowly across multiple unraid servers. Not really sure how to diagnose it.

 

Other than that - yes, it's just basic NAS sharing - no containers or VMs or plugins installed. I did a memtest when I installed the RAM. No errors detected.

Edited January 16, 20233 yr by SLRist

According to the diags nothing is being written at this moment, probability caching to RAM, run a single stream iperf test in both directions.