For my own purposes, I fixed this in 0.7.1
/nifi-bootstrap///src/main/java/org/////apache/nifi/bootstrap/RunNiFi.java/,
but at Joe's suggestion, I created JIRA NIFI-3364 hoping some committer
will get to it for all code branches-forward. The solution I used was
made to be as little disruptive to the existing code as possible. To
that JIRA I attached the solution pinched between comments in a larger
test demonstrating it.
I had found that I could trick the order in my local environment by
trial and error, however, moving to another host and with the additional
need to dominate the order of JMX remote definitions as well (in order
to reach NiFi remote from Java Mission Control), it just became
impossible to achieve it.
The code I wrote isn't the only way to fix nor even necessarily the
best, but it works supporting both the ordering of /N/in java.arg.Nas
well as (did you know this?) the use of non-numeric options for the
position of /N/.
Russ
On 12/14/2016 11:05 AM, Russell Bateman wrote:
I've doctored /conf/bootstrap.conf/ to contain these additional lines:
java.arg.15=-XX:+UnlockCommercialFeatures
java.arg.16=-XX:+FlightRecorder
java.arg.17=-XX:StartFlightRecording=duration=120m,filename=recording.jfr
In the end, NiFi's grumpy about this and won't start (from
/logs/nifi-bootstrap.log/):
2016-12-14 10:39:36,489 ERROR [NiFi logging handler]
org.apache.nifi.StdErr Error: *To use 'FlightRecorder', first unlock
using -XX:+UnlockCommercialFeatures.*
2016-12-14 10:39:36,489 ERROR [NiFi logging handler]
org.apache.nifi.StdErr Error: Could not create the Java Virtual Machine.
2016-12-14 10:39:36,489 ERROR [NiFi logging handler]
org.apache.nifi.StdErr Error: A fatal exception has occurred. Program
will exit.
2016-12-14 10:39:36,507 INFO [main] org.apache.nifi.bootstrap.RunNiFi
NiFi never started. Will not restart NiFi
I tried using all options as one (in case the order is disturbed,
which it was):
java.arg.15=-XX:+UnlockCommercialFeatures-XX:+FlightRecorder-XX:StartFlightRecording=duration=120m,filename=recording.jfr
and then I get:
*2016-12-14 10:50:07,574 ERROR [NiFi logging handler]
org.apache.nifi.StdErr Unrecognized VM option
'UnlockCommercialFeatures -XX:+FlightRecorder
-XX:StartFlightRecording=duration=120m,filename=recording.jfr'*
2016-12-14 10:50:07,574 ERROR [NiFi logging handler]
org.apache.nifi.StdErr Error: Could not create the Java Virtual Machine.
2016-12-14 10:50:07,574 ERROR [NiFi logging handler]
org.apache.nifi.StdErr Error: A fatal exception has occurred. Program
will exit.
2016-12-14 10:50:07,598 INFO [main] org.apache.nifi.bootstrap.RunNiFi
NiFi never started. Will not restart NiFi
Here's the second command line from /logs/nifi-bootstrap.log/, which
I've wrapped for convenience in reading (see JVM version here too):
2016-12-14 10:56:40,526 INFO [main] org.apache.nifi.bootstrap.Command
Working Directory: /home/russ/dev/nifi/nifi-1.1.0
2016-12-14 10:56:40,526 INFO [main] org.apache.nifi.bootstrap.Command
Command: */home/russ/dev/jdk1.8.0_112/bin/java*
-classpath
/home/russ/dev/nifi/nifi-1.1.0/./conf:/home/russ/dev/nifi/nifi-1.1.0/./lib/jcl-over-slf4j-1.7.12.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/logback-core-1.1.3.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/nifi-documentation-1.1.0.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/nifi-nar-utils-1.1.0.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/logback-classic-1.1.3.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/jul-to-slf4j-1.7.12.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/nifi-runtime-1.1.0.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/slf4j-api-1.7.12.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/nifi-api-1.1.0.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/nifi-framework-api-1.1.0.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/log4j-over-slf4j-1.7.12.jar:/home/russ/dev/nifi/nifi-1.1.0/./lib/nifi-properties-1.1.0.jar
-Dorg.apache.jasper.compiler.disablejsr199=true
-Xmx512m
-Xms512m
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=9191
*-XX:+UnlockCommercialFeatures
-XX:+FlightRecorder
-XX:StartFlightRecording=duration=120m,filename=recording.jfr*
-Dsun.net.http.allowRestrictedHeaders=true
-Djava.net.preferIPv4Stack=true
-Djava.awt.headless=true
-XX:+UseG1GC
-Djava.protocol.handler.pkgs=sun.net.www.protocol
-Dnifi.properties.file.path=/home/russ/dev/nifi/nifi-1.1.0/./conf/nifi.properties
-Dnifi.bootstrap.listen.port=41736
-Dapp=NiFi
-Dorg.apache.nifi.bootstrap.config.log.dir=/home/russ/dev/nifi/nifi-1.1.0/logs
org.apache.nifi.NiFi
Last, I frantically tried this:
java.arg.15="-XX:+UnlockCommercialFeatures -XX:+FlightRecorder
-XX:StartFlightRecording=duration=120m,filename=recording.jfr"
and then got:
*2016-12-14 11:01:36,659 ERROR [NiFi logging handler]
org.apache.nifi.StdErr Error: Could not find or load main class
"-XX:+UnlockCommercialFeatures -XX:+FlightRecorder
-XX:StartFlightRecording=duration=120m,filename=recording.jfr"*
What's the canonical way of adding/inserting my own JVM commands?
Alternatively, is NiFi analyzing and blocking -XX:arguments to the JVM
as illegal or unrecognized?
Thanks,
Russ
