Clarity PPM App service is not starting with deprecated JVM parameters
Article ID: 144003
Updated On:
Products
Issue/Introduction
After upgrade to Clarity PPM 15.5.1, 15.6, 15.6.1, 15.7 or 15.7.1 we see that few Java parameters are deprecated. Especially if we use extensive GC logging using options such as
-loggc, -XX:+PrintGCTimeStamps, -XX:+PrintGC(-verbose:GC), -XX:+PrintGCDetails, -XX:+PrintGCDateStamps.
This also causes the application to fail starting up with below errors. If we remove them then the application starts as expected
YYYY/MM/DD 08:26:28.822 | Launching a JVM...
YYYY/MM/DD 08:26:28.932 | [0.003s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:Path instead.
YYYY/MM/DD 08:26:28.932 | Unrecognized VM option 'PrintGCTimeStamps'
YYYY/MM/DD 08:26:28.932 | Error: Could not create the Java Virtual Machine.
YYYY/MM/DD 08:26:28.947 | Error: A fatal exception has occurred. Program will exit.
YYYY/MM/DD 08:26:28.947 | JVM exited while loading the application.
YYYY/MM/DD 08:26:33.976 | Launching a JVM...
YYYY/MM/DD 08:26:34.086 | [0.003s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:Path instead.
YYYY/MM/DD 08:26:34.086 | Unrecognized VM option 'PrintGCTimeStamps'
YYYY/MM/DD 08:26:34.086 | Error: Could not create the Java Virtual Machine.
YYYY/MM/DD 08:26:34.101 | Error: A fatal exception has occurred. Program will exit.
YYYY/MM/DD 08:26:34.101 | JVM exited while loading the application.
YYYY/MM/DD 08:26:39.159 | Launching a JVM...
YYYY/MM/DD 08:26:39.269 | [0.003s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:Path instead.
YYYY/MM/DD 08:26:39.269 | Unrecognized VM option 'PrintGCTimeStamps'
YYYY/MM/DD 08:26:39.269 | Error: Could not create the Java Virtual Machine.
YYYY/MM/DD 08:26:39.289 | Error: A fatal exception has occurred. Program will exit.
YYYY/MM/DD 08:26:39.291 | JVM exited while loading the application.
Environment
Release : 15.5.1,15.6,15.6.1,15.7,15.7.1
Cause
This is caused by deprecated Java parameters in Java 11 used by Clarity
Resolution
- With Java's new Unified logging we don't need additional parameters to do GC logging.
- We can achieve it using the below single line parameter.
- -Xlog:gc*=debug:file=<Path to File>:time,uptime,level,hostname,pid,tid:filecount=20,filesize=5M
- Correct the JVM parameters to remove all deprecated entries and restart services
Additional Information
More information can be found below
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