[FRS-355] FusionReactor Production Debugger fails to start due to missing GLIBC_2.14

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[FRS-355] FusionReactor Production Debugger fails to start due to missing GLIBC_2.14

UPD uses a native library to provide some of its features. UPDs native library requires GLIBC_2.14 to function.

Centos 6.x, Red Hat Enterprise Linux and other linux systems don’t provide this version. When it’s not available you will see error messages like this during startup :

$ sudo bin/catalina.sh run
Using CATALINA_BASE:   /opt/apache-tomcat-8.0.3
Using CATALINA_HOME:   /opt/apache-tomcat-8.0.3
Using CATALINA_TMPDIR: /opt/apache-tomcat-8.0.3/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /opt/apache-tomcat-8.0.3/bin/bootstrap.jar:/opt/apache-tomcat-8.0.3/bin/tomcat-juli.jar
Error occurred during initialization of VM
Could not find agent library /opt/fusionreactor/instance/tomcat8/libfrjvmti_x64.so in absolute path, with 
error: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by /opt/fusionreactor/instance/tomcat8/libfrjvmti_x64.so)

On CF servers this error information is redirected to /dev/null so its never seen but you could be hitting this error.

Check glibc version

To check the version of glibc on a linux system you can run one of the following:

# red hat / centos
rpm -q glibc

# debian / ubuntu
dpkg -l libc6

# via ldd
ldd --version


To work around we have build a libc.so6 version 2.14.1 for uses on Centos (64 bit only) which must be explicitly loaded via the LD_PRELOAD variable

E.g. in tomcat you would set the following lines in the ‘setenv.sh’

export FR_OPTS="-javaagent:/opt/fusionreactor/instance/tomcat8/fusionreactor.jar=name=tomcat8,address= -agentpath:/opt/fusionreactor/instance/tomcat8/libfrjvmti_x64.so"

export LD_PRELOAD=/opt/fusionreactor/instance/tomcat8/libc.so.6

Disable the FusionReactor Production Debugger

You can disable the debugger completely by removing the


argument from your application server. For Tomcat this is in setenv.sh and for CF servers its in the jvm.config.


libc.so.6 – md5 checksum fa05af08d2993c478786a1f5b0335e1a

Issue Details

Type Technote
Issue Number FRS-355
Components UPD
Resolution Fixed
Last Updated 2019-11-27T12:19:37.645+0000
Affects Version(s) 6.0.0
Fix Version(s) 6.0.0
Platforms(s) Linux