ml.shifu.guagua.util
类 JMap

java.lang.Object
  ml.shifu.guagua.util.JMap

public class JMap
extends Object

Helper to run jmap and print the output. Copy from Apache Giraph.

字段摘要

static String	ARGS Arguments to pass in to command
static String	CMD The command to run

构造方法摘要

protected

JMap() Do not construct

方法摘要

static int	getProcessId() Get the process ID of the current running process
static void	heapHistogramDump(int numLines) Run jmap, print numLines of output from it to stderr.
static void	heapHistogramDump(int numLines, PrintStream printStream) Run jmap, print numLines of output from it to stream passed in.

从类 java.lang.Object 继承的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细信息

CMD

public static final String CMD

The command to run

另请参见：

常量字段值

ARGS

public static final String ARGS

Arguments to pass in to command

另请参见：

常量字段值

构造方法详细信息

JMap

protected JMap()

Do not construct

方法详细信息

getProcessId

public static int getProcessId()

Get the process ID of the current running process

返回：

Integer process ID

heapHistogramDump

public static void heapHistogramDump(int numLines)

Run jmap, print numLines of output from it to stderr.

参数：

numLines - Number of lines to print

heapHistogramDump

public static void heapHistogramDump(int numLines,
                                     PrintStream printStream)

Run jmap, print numLines of output from it to stream passed in.

参数：

numLines - Number of lines to print

printStream - Stream to print to