[NIFI-6731] Docker container JVM heap not applying

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.9.2
• Fix Version/s: 1.10.0
• Component/s: Docker
• Assignee: Unassigned
• Reporter: cavemandaveman
• Created: 30/Sep/19 16:42
• Updated: 30/Sep/19 18:41
• Resolved: 30/Sep/19 18:41

Description

The environment variables:
NIFI_JVM_HEAP_INIT
NIFI_JVM_HEAP_MAX
do not get set properly once the container is running.
 
For example, when setting these variables in the docker run command:
docker run -d -p 8080:8080 -e NIFI_JVM_HEAP_INIT=2g -e NIFI_JVM_HEAP_MAX=2g apache/nifi:1.9.2
then checking http://localhost:8080/nifi-api/system-diagnostics shows that totalHeap and maxHeap are set to the default 512mb. Also exec-ing into the container and looking at the bootstrap.conf shows that java.arg.2 and java.arg.3 did not get updated.