Hi Wally, Based on the error, it sounds to me like PM2 is automatically restarting anytime a process goes over the " --max-memory-restart" value. This is a flag that can be used to tell PM2 to automatically restart anytime memory usage increases. You may want to look more at setting that flag to a reasonable value (it looks like from the error, it might be defaulting to 8MB? "max_memory_limit=8388608")
That's my immediate guess as to what might be going on. There are also some good guides out there for PM2 usage in general that might be helpful. Here's one which describes the "--max-memory-restart" flag in more detail: https://blog.appsignal.com/2022/03/09/a-complete-guide-to-nodejs-process-management-with-pm2.html Hopefully others will add advice here if they've run into this same issue before. Tim On Thursday, August 17, 2023 at 9:18:57 AM UTC-5 Wally Grotophorst wrote: > When tailing pm2.log I see this happening every 30 seconds or so (this is > just an excerpt, one of the worker processes out of the 10 I have running): > > 2023-08-17T10:16:20: PM2 log: [PM2][WORKER] Process 6 restarted because it > exceeds --max-memory-restart value (current_memory=117948416 > max_memory_limit=8388608 [octets]) > 2023-08-17T10:16:20: PM2 log: App [dspace-ui:6] starting in -cluster mode- > 2023-08-17T10:16:20: PM2 log: App [dspace-ui:6] online > 2023-08-17T10:16:21: PM2 log: -reload- New worker listening > 2023-08-17T10:16:21: PM2 log: Stopping app:dspace-ui id:_old_6 > 2023-08-17T10:16:21: PM2 log: App name:dspace-ui id:_old_6 disconnected > 2023-08-17T10:16:21: PM2 log: App [dspace-ui:_old_6] exited with code [0] > via signal [SIGINT] > 2023-08-17T10:16:21: PM2 log: pid=82542 msg=process killed > > Server has 16GB unused memory. Here's my dspace-ui.json file: > > "apps": [ > { > "name": "dspace-ui", > "cwd": "/opt/local/dspace-ui", > "script": "dist/server/main.js", > "instances": "max", > "exec_mode": "cluster", > "min_uptime": 30000, > "out_file": "/dev/null", > "env": { > "NODE_ENV": "production" > }, > "node_args": [ > "--max_old_space_size=6144" > ] > > Any suggestions on what might be wrong (I assume that much reloading is > wrong...but I am very new to node.js and pm2... > -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to dspace-tech+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/e02a0910-93f5-47bc-ac88-1e4a90dbe224n%40googlegroups.com.
