Examples of org.eclipse.jetty.monitor.thread.ThreadMonitorInfo

                if (threadId == _runner.getId())
                {
                    continue;
                }


                ThreadMonitorInfo currMonitorInfo = _monitorInfo.get(Long.valueOf(threadId));
                if (currMonitorInfo == null)
                {
                    // Create thread info object for a new thread 
                    currMonitorInfo = new ThreadMonitorInfo(thread);
                    currMonitorInfo.setStackTrace(entry.getValue());
                    currMonitorInfo.setCpuTime(getThreadCpuTime(threadId));
                    currMonitorInfo.setSampleTime(System.nanoTime());
                    _monitorInfo.put(Long.valueOf(threadId), currMonitorInfo);
                }
                else
                {
                    // Update the existing thread info object
                    currMonitorInfo.setStackTrace(entry.getValue());
                    currMonitorInfo.setCpuTime(getThreadCpuTime(threadId));
                    currMonitorInfo.setSampleTime(System.nanoTime());
    
                    // Stack trace count holds logging state
                    int count = currMonitorInfo.getTraceCount();
                    if (count >= 0 && currMonitorInfo.isSpinning())
                    {
                        // Thread was spinning and was logged before
                        if (count < _trailLength) 
                        {
                            // Log another stack trace
                            currMonitorInfo.setTraceCount(count+1);
                            repeat = true;
                            continue;
                        }
                        
                        // Reset spin flag and trace count
                        currMonitorInfo.setSpinning(false);
                        currMonitorInfo.setTraceCount(-1);
                    }
                    if (currMonitorInfo.getCpuUtilization() > _busyThreshold)
                    {
                        // Thread is busy
                        StackTraceElement[] lastStackTrace = currMonitorInfo.getStackTrace();
    
                        if (lastStackTrace != null 
                        && matchStackTraces(lastStackTrace, entry.getValue()))
                        {
                            // Thread is spinning
                            currMonitorInfo.setSpinning(true);
                            if (count < 0)
                            {
                                // Enable logging of spin status and stack traces 
                                // only if the incoming trace count is negative
                                // that indicates a new scan for this thread
                                currMonitorInfo.setTraceCount(0);
                                repeat = (_trailLength > 0);
                            }
                        }
                    }
                }

            // Select thread objects for all live threads
            long[] running = getAllThreadIds();
            List<ThreadMonitorInfo> all = new ArrayList<ThreadMonitorInfo>();
            for (int idx=0; idx<running.length; idx++)
            {
                ThreadMonitorInfo info = _monitorInfo.get(running[idx]); 
                if (info != null)
                {
                    all.add(info);
                }
            }


            // Sort selected thread objects by their CPU utilization
            Collections.sort(all, new Comparator<ThreadMonitorInfo>()
            {
                /* ------------------------------------------------------------ */
                public int compare(ThreadMonitorInfo info1, ThreadMonitorInfo info2)
                {
                    return (int)Math.signum(info2.getCpuUtilization()-info1.getCpuUtilization());
                }
            });
            
            String format = "Thread '%2$s'[%3$s,id:%1$d,cpu:%4$.2f%%]%5$s";
            
            // Log thread information for threads that exceed logging threshold
            // or log spinning threads if their trace count is zero
            boolean spinning=false;
            for (ThreadMonitorInfo info : all)
            {
                if (logAll && info.getCpuUtilization() > _logThreshold 
                || info.isSpinning() && info.getTraceCount() == 0)
                {
                    String message = String.format(format, 
                            info.getThreadId(), info.getThreadName(), 
                            info.getThreadState(), info.getCpuUtilization(),
                            info.isSpinning() ? " SPINNING" : "");
                   _logger.info(message);
                   spinning=true;
                }
            }
            
            // Dump info
            if (spinning && _dumpable!=null)
            {
                System.err.println(_dumpable.dump());
            }


            // Log stack traces for spinning threads with positive trace count
            for (ThreadMonitorInfo info : all)
            {
                if (info.isSpinning() && info.getTraceCount() >= 0)
                {
                    String message = String.format(format,
                            info.getThreadId(), info.getThreadName(), 
                            info.getThreadState(), info.getCpuUtilization(),
                            " STACK TRACE");
                    _logger.warn(new ThreadMonitorException(message, info.getStackTrace()));
                }
            }
        }
    }

Examples of org.eclipse.jetty.monitor.thread.ThreadMonitorInfo

Related Classes of org.eclipse.jetty.monitor.thread.ThreadMonitorInfo