org.apache.zookeeper.server.util

Class RequestPathMetricsCollector

java.lang.Object

org.apache.zookeeper.server.util.RequestPathMetricsCollector

public class RequestPathMetricsCollector
extends Object

This class holds the requests path ( up till a certain depth) stats per request type

Field Summary

Fields

Modifier and Type	Field and Description
static String	PATH_STATS_COLLECTOR_DELAY
static String	PATH_STATS_COLLECTOR_INITIAL_DELAY
static String	PATH_STATS_ENABLED
static String	PATH_STATS_MAX_DEPTH
static String	PATH_STATS_SAMPLE_RATE
static String	PATH_STATS_SLOT_CAPACITY
static String	PATH_STATS_SLOT_DURATION
static String	PATH_STATS_TOP_PATH_MAX

Constructor Summary

Constructors

Constructor and Description
RequestPathMetricsCollector()
RequestPathMetricsCollector(boolean accurateMode)

Method Summary

Modifier and Type	Method and Description
void	dumpTopPaths(PrintWriter pwriter, int queryMaxDepth)
void	dumpTopReadPaths(PrintWriter pwriter, int queryMaxDepth)
void	dumpTopRequestPath(PrintWriter pwriter, String requestTypeName, int queryMaxDepth)
void	dumpTopWritePaths(PrintWriter pwriter, int queryMaxDepth)
void	registerRequest(int type, String path) The public interface of the buffer.
void	shutdown()
void	start()

Methods inherited from class java.lang.Object

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

Field Detail

PATH_STATS_SLOT_CAPACITY

public static final String PATH_STATS_SLOT_CAPACITY

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Constant Field Values

PATH_STATS_SLOT_DURATION

public static final String PATH_STATS_SLOT_DURATION

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Constant Field Values

PATH_STATS_MAX_DEPTH

public static final String PATH_STATS_MAX_DEPTH

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Constant Field Values

PATH_STATS_SAMPLE_RATE

public static final String PATH_STATS_SAMPLE_RATE

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Constant Field Values

PATH_STATS_COLLECTOR_INITIAL_DELAY

public static final String PATH_STATS_COLLECTOR_INITIAL_DELAY

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Constant Field Values

PATH_STATS_COLLECTOR_DELAY

public static final String PATH_STATS_COLLECTOR_DELAY

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Constant Field Values

PATH_STATS_TOP_PATH_MAX

public static final String PATH_STATS_TOP_PATH_MAX

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Constant Field Values

PATH_STATS_ENABLED

public static final String PATH_STATS_ENABLED

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Constant Field Values

Constructor Detail

RequestPathMetricsCollector

public RequestPathMetricsCollector()

RequestPathMetricsCollector

public RequestPathMetricsCollector(boolean accurateMode)

Method Detail

shutdown

public void shutdown()

start

public void start()

registerRequest

public void registerRequest(int type,
                            String path)

The public interface of the buffer. FinalRequestHandler will call into this for each request that has a path and this needs to be fast. we sample the path so that we don't have to store too many paths in memory

dumpTopRequestPath

public void dumpTopRequestPath(PrintWriter pwriter,
                               String requestTypeName,
                               int queryMaxDepth)

dumpTopReadPaths

public void dumpTopReadPaths(PrintWriter pwriter,
                             int queryMaxDepth)

dumpTopWritePaths

public void dumpTopWritePaths(PrintWriter pwriter,
                              int queryMaxDepth)

dumpTopPaths

public void dumpTopPaths(PrintWriter pwriter,
                         int queryMaxDepth)