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https://issues.apache.org/jira/browse/SOLR-3148?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14060502#comment-14060502
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Thomas Mueller commented on SOLR-3148:
--------------------------------------
FYI I faced the same problem, but found a different solution. I think the
problem is that you need to get the method on the interface
(com.sun.management.OperatingSystemMXBean), not on the class
(sun.management.OperatingSystemImpl). That way, setAccessible(true) is not
needed. This works for me:
{noformat}
OperatingSystemMXBean mxBean = ManagementFactory.
getOperatingSystemMXBean();
Method method = Class.forName(
"com.sun.management.OperatingSystemMXBean").
getMethod("getTotalPhysicalMemorySize");
long physicalMemorySize = (Long) method.invoke(mxBean);
{noformat}
> SystemInfoHandler does not expose all available info
> ----------------------------------------------------
>
> Key: SOLR-3148
> URL: https://issues.apache.org/jira/browse/SOLR-3148
> Project: Solr
> Issue Type: Bug
> Affects Versions: 3.6, 4.0-ALPHA
> Reporter: Sami Siren
> Assignee: Sami Siren
> Priority: Minor
> Fix For: 3.6, 4.0-ALPHA
>
>
> The following info is not returned even when they are available (on java 1.6
> and 1.7):
> {code}
> getSystemLoadAverage()
> getOpenFileDescriptorCount()
> getMaxFileDescriptorCount()
> getCommittedVirtualMemorySize()
> getTotalPhysicalMemorySize()
> getTotalSwapSpaceSize()
> getProcessCpuTime()
> {code}
> This is happening because the following exception is thrown:
> {code}
> java.lang.IllegalAccessException: Class
> org.apache.solr.handler.admin.SystemInfoHandler can not access a member of
> class com.sun.management.UnixOperatingSystem with modifiers "public native"
> {code}
> It seems to be enough to call setAccessible(true) on the method to get rid of
> that exception.
> Additionally I see a strange value for the ulimit key:
> "ulimit":"(error executing: ulimit -n)",
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