after upgrading from 2.1.13 to 2.2.9,I noticed the following info in system.log:
INFO [main] 2017-04-25 10:43:30,073 SigarLibrary.java:44 - Initializing SIGAR library
INFO [main] 2017-04-25 10:43:30,084 SigarLibrary.java:57 - Could not initialize SIGAR library org.hyperic.sigar.Sigar.getFileSystemListNative()[Lorg/hyperic/sigar/FileSystem;
INFO [main] 2017-04-25 10:43:30,084 SigarLibrary.java:185 - Sigar could not be initialized, test for checking degraded mode omitted.
Could any one please advise? Thanks