Hi,
we are running nifi 1.11.4 version .we had resource issue before recently RAM and CPU core increase in server.
we changed bootstrap.conf file
java.arg.2=-Xms20g
java.arg.3=-Xmx40g
Total 1100 processors are running in nifi, around 150+ processor disable (in disable processors have queue with 3GB).
After restart nifi it is working fine for sometime ,after that Nifi ui response is too slowly.
Even for refresh option it is taking 1 minute +.
After sometime we are unable to access nifi ui. it is not loading anything but in server nifi is running telnet is working fine.
os: redhat
RAM : 64 GB
CPU : 16GB
java:1.8
unable to find the actually issue.
nifi-api/system-diagnostics
{"systemDiagnostics":{"aggregateSnapshot":{"totalNonHeap":"366 MB","totalNonHeapBytes":383778816,"usedNonHeap":"273.25 MB","usedNonHeapBytes":286525256,"freeNonHeap":"92.75 MB","freeNonHeapBytes":97253560,"maxNonHeap":"-1 bytes","maxNonHeapBytes":-1,"totalHeap":"38.34 GB","totalHeapBytes":41163423744,"usedHeap":"35.97 GB","usedHeapBytes":38624675432,"freeHeap":"2.36 GB","freeHeapBytes":2538748312,"maxHeap":"38.34 GB","maxHeapBytes":41163423744,"heapUtilization":"94.0%","availableProcessors":20,"processorLoadAverage":14.13,"totalThreads":338,"daemonThreads":155,"uptime":"91:55:36.089","flowFileRepositoryStorageUsage":{"freeSpace":"145.38 GB","totalSpace":"300 GB","usedSpace":"154.62 GB","freeSpaceBytes":156101574656,"totalSpaceBytes":322122547200,"usedSpaceBytes":166020972544,"utilization":"52.0%"},"contentRepositoryStorageUsage":[{"identifier":"default","freeSpace":"145.38 GB","totalSpace":"300 GB","usedSpace":"154.62 GB","freeSpaceBytes":156101574656,"totalSpaceBytes":322122547200,"usedSpaceBytes":166020972544,"utilization":"52.0%"}],"provenanceRepositoryStorageUsage":[{"identifier":"default","freeSpace":"145.38 GB","totalSpace":"300 GB","usedSpace":"154.62 GB","freeSpaceBytes":156101574656,"totalSpaceBytes":322122547200,"usedSpaceBytes":166020972544,"utilization":"52.0%"}],"garbageCollection":[{"name":"PS Scavenge","collectionCount":2458,"collectionTime":"00:52:34.376","collectionMillis":3154376},{"name":"PS MarkSweep","collectionCount":4935,"collectionTime":"64:44:42.397","collectionMillis":233082397}],"statsLastRefreshed":"10:40:31 IST","versionInfo":{"niFiVersion":"1.11.4","javaVendor":"Oracle Corporation","javaVersion":"1.8.0_242","osName":"Linux","osVersion":"3.10.0-1062.12.1.el7.x86_64","osArchitecture":"amd64","buildTag":"nifi-1.11.4-RC1","buildTimestamp":"03/18/2020 12:42:54 IST"}}}}
