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java.lang.Object org.eclipse.jetty.util.component.AbstractLifeCycle org.eclipse.jetty.monitor.ThreadMonitor
public class ThreadMonitor
Nested Class Summary |
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Nested classes/interfaces inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle |
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AbstractLifeCycle.AbstractLifeCycleListener |
Nested classes/interfaces inherited from interface org.eclipse.jetty.util.component.LifeCycle |
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LifeCycle.Listener |
Field Summary |
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Fields inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle |
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_listeners, FAILED, RUNNING, STARTED, STARTING, STOPPED, STOPPING |
Constructor Summary | |
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ThreadMonitor()
Instantiates a new thread monitor. |
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ThreadMonitor(int intervalMs)
Instantiates a new thread monitor. |
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ThreadMonitor(int intervalMs,
int threshold)
Instantiates a new thread monitor. |
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ThreadMonitor(int intervalMs,
int threshold,
int depth)
Instantiates a new thread monitor. |
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ThreadMonitor(int intervalMs,
int threshold,
int depth,
int trail)
Instantiates a new thread monitor. |
Method Summary | |
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void |
doStart()
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void |
doStop()
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protected long[] |
getAllThreadIds()
Retrieve all avaliable thread ids |
int |
getBusyThreshold()
Gets the busy threshold. |
Dumpable |
getDumpable()
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int |
getLogInterval()
Gets the log interval. |
int |
getLogThreshold()
Gets the log threshold. |
int |
getScanInterval()
Gets the scan interval. |
int |
getStackDepth()
Gets the stack depth. |
protected long |
getThreadCpuTime(long id)
Retrieve the cpu time for specified thread. |
int |
getTrailLength()
Gets the stack trace trail length. |
protected void |
init()
Initialize JMX objects. |
void |
logCpuUsage(int frequencyMs,
int thresholdPercent)
Enable logging of CPU usage. |
protected void |
logThreadInfo(boolean logAll)
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void |
run()
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void |
setBusyThreshold(int percent)
Sets the busy threshold. |
void |
setDumpable(Dumpable dumpable)
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void |
setLogInterval(int ms)
Sets the log interval. |
void |
setLogThreshold(int percent)
Sets the log threshold. |
void |
setScanInterval(int ms)
Sets the scan interval. |
void |
setStackDepth(int stackDepth)
Sets the stack depth. |
void |
setTrailLength(int trailLength)
Sets the stack trace trail length. |
Methods inherited from class org.eclipse.jetty.util.component.AbstractLifeCycle |
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addLifeCycleListener, getState, getState, isFailed, isRunning, isStarted, isStarting, isStopped, isStopping, removeLifeCycleListener, start, stop, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public ThreadMonitor() throws Exception
Exception
public ThreadMonitor(int intervalMs) throws Exception
intervalMs
- scan interval
Exception
public ThreadMonitor(int intervalMs, int threshold) throws Exception
intervalMs
- scan intervalthreshold
- busy threshold
Exception
public ThreadMonitor(int intervalMs, int threshold, int depth) throws Exception
intervalMs
- scan intervalthreshold
- busy thresholddepth
- stack compare depth
Exception
public ThreadMonitor(int intervalMs, int threshold, int depth, int trail) throws Exception
intervalMs
- scan intervalthreshold
- busy thresholddepth
- stack compare depthtrail
- length of stack trail
Exception
Method Detail |
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public int getScanInterval()
public void setScanInterval(int ms)
ms
- the new scan intervalpublic int getLogInterval()
public void setLogInterval(int ms)
ms
- the new log intervalpublic int getBusyThreshold()
public void setBusyThreshold(int percent)
percent
- the new busy thresholdpublic int getLogThreshold()
public void setLogThreshold(int percent)
percent
- the new log thresholdpublic int getStackDepth()
public void setStackDepth(int stackDepth)
stackDepth
- the new stack depthpublic void setTrailLength(int trailLength)
trailLength
- the new trail lengthpublic int getTrailLength()
public void logCpuUsage(int frequencyMs, int thresholdPercent)
frequencyMs
- the logging frequencythresholdPercent
- the logging thresholdpublic Dumpable getDumpable()
Dumpable
that is dumped whenever spinning threads are detectedpublic void setDumpable(Dumpable dumpable)
dumpable
- A Dumpable
that is dumped whenever spinning threads are detectedpublic void doStart()
doStart
in class AbstractLifeCycle
AbstractLifeCycle.doStart()
public void doStop()
doStop
in class AbstractLifeCycle
AbstractLifeCycle.doStop()
protected long[] getAllThreadIds()
protected long getThreadCpuTime(long id)
id
- thread id
protected void init()
public void run()
run
in interface Runnable
Runnable.run()
protected void logThreadInfo(boolean logAll)
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