question NiFi - StandardHttpContextMap is causing OutOfMemoryError and UI won't load in Support Questions

NiFi - StandardHttpContextMap is causing OutOfMemoryError and UI won't load

noncitizen — Mon, 31 Mar 2025 14:30:53 GMT

That pretty much sums it up. We had a database server go down over the weekend, and I have a suspicion that things got backed up, but I can't get to the UI to try to unravel it. I have tried setting autoResumeState to false and setting everything in flow.xml.gz to "Disabled", but the UI still won't come up because of this error. Unfortunately, all of this is in an isolated environment, so sharing full logs is not impossible but very, very difficult. This vm has 23GB of RAM and Xms=4096m and Xmx=8192m. niagarafiles-community-11.6.3

Re: NiFi - StandardHttpContextMap is causing OutOfMemoryError and UI won't load

noncitizen — Mon, 31 Mar 2025 15:15:55 GMT

Looking at the log some more, I should add, the initial "error" includes "GC overhead limit exceeded", which I have learned GC = garbage collection.

Re: NiFi - StandardHttpContextMap is causing OutOfMemoryError and UI won't load

noncitizen — Mon, 31 Mar 2025 15:46:10 GMT

I doubled Xmx to 16384 and the UI came up and rather large backlog of files has begun to flow.