org.apache.hadoop.hive.ql.debug

Class Utils

java.lang.Object

org.apache.hadoop.hive.ql.debug.Utils

public class Utils
extends Object

Debug utility methods for Hive.

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	dumpHeap(String fileName, boolean live) Dumps process heap.
static void	dumpHeapToTmp(String... args) Dumps process heap to a file in temp directoty.
static String	toStringBinary(byte[] b, int off, int len) Outputs some bytes as hex w/printable characters prints.

Methods inherited from class java.lang.Object

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

Constructor Detail

Utils

public Utils()

Method Detail

dumpHeapToTmp

public static void dumpHeapToTmp(String... args)

Dumps process heap to a file in temp directoty.

Parameters:

args - Strings to use to build a file name (dump_arg0_arg1_....).

dumpHeap

public static void dumpHeap(String fileName,
            boolean live)

Dumps process heap.

Parameters:

fileName - File name to use.

live - Whether to only dump live objects.

toStringBinary

public static String toStringBinary(byte[] b,
                    int off,
                    int len)

Outputs some bytes as hex w/printable characters prints. Helpful debug method; c/p from HBase Bytes.

Parameters:

b - Bytes.

off - Offset.

len - Length.

Returns:

The string representation.