/*
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on Mar 26, 2008
*/
package com.bigdata.counters;
import java.net.InetAddress;
/**
* The set of core (required) counters that must be reported for all
* platforms. The items declared on this interface are relative path names
* for {@link ICounterSet}s and {@link ICounter}s. The root for the path
* is generally the fully qualified domain name of a host (as reported by
* {@link InetAddress#getCanonicalHostName()}, a federation, or a service.
* <p>
* Note: it is good practice to keep these three namespaces distinct so that
* you can aggregate counters readily without these different contexts.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public interface IRequiredHostCounters extends ICounterHierarchy {
/*
* INFO
*/
/**
* The name of the operating system running on the platform as reported
* by {@link System#getProperty(String)} for the <code>os.name</code>
* property.
*/
String Info_OperatingSystemName = Info + ps
+ "Operating System Name";
/**
* The version of the operating system running on the platform as
* reported by {@link System#getProperty(String)} for the
* <code>os.version</code> property.
*/
String Info_OperatingSystemVersion = Info + ps
+ "Operating System Version";
/**
* System architecture as reported by {@link System#getProperty(String)}
* for the <code>os.arch</code> property.
*/
String Info_Architecture = Info + ps + "Architecture";
/*
* CPU
*
* TODO It would be great to have IO Wait as a required counter, but we
* do not have access to it under Windows (last I checked).
*
* See IHostCounters#CPU_PercentIOWait
*/
/** Percentage of the time the processor is not idle in [0:1]. */
String CPU_PercentProcessorTime = CPU + ps
+ "% Processor Time";
/*
* Memory
*/
/**
* Faults which required loading a page from disk.
*/
String Memory_majorFaultsPerSecond = Memory + ps
+ "Major Page Faults Per Second";
/*
* LogicalDisk
*/
/**
* Percentage of the disk space that is free (unused) [0.0:1.0].
*
* @todo This should only be monitoring local disk since NAS will typically
* be shared across a cluster and hence of its space remaining will be
* of little use to the LBS.
* <p>
* It will probably require platform specific configuration to select
* only the appropriate devices (which would also address the above
* concern).
*
* @todo not collected under linux.
*/
String LogicalDisk_PercentFreeSpace = LogicalDisk + ps + "% Free Space";
/*
* PhysicalDisk
*/
/** Disk bytes read per second for the host (vmstat). */
String PhysicalDisk_BytesReadPerSec = PhysicalDisk + ps
+ "Bytes Read Per Second";
/** Disk bytes written per second for the host (vmstat). */
String PhysicalDisk_BytesWrittenPerSec = PhysicalDisk + ps
+ "Bytes Written Per Second";
};