org.apache.hadoop.hbase.tool

类 CanaryTool

java.lang.Object

org.apache.hadoop.hbase.tool.CanaryTool

所有已实现的接口:

org.apache.hadoop.conf.Configurable, Canary, org.apache.hadoop.util.Tool

@InterfaceAudience.LimitedPrivate(value="Tools")
public class CanaryTool
extends Object
implements org.apache.hadoop.util.Tool, Canary

HBase Canary Tool for "canary monitoring" of a running HBase cluster. There are three modes:

1. region mode (Default): For each region, try to get one row per column family outputting information on failure (ERROR) or else the latency.
2. regionserver mode: For each regionserver try to get one row from one table selected randomly outputting information on failure (ERROR) or else the latency.
3. zookeeper mode: for each zookeeper instance, selects a znode outputting information on failure (ERROR) or else the latency.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	CanaryTool.Monitor A Monitor super-class can be extended by users
static class	CanaryTool.RegionServerStdOutSink By RegionServer, for 'regionserver' mode.
static class	CanaryTool.RegionStdOutSink By Region, for 'region' mode.
static class	CanaryTool.RegionTaskResult Canary region mode-specific data structure which stores information about each region to be scanned
static interface	CanaryTool.Sink Sink interface used by the canary to output information
static class	CanaryTool.StdOutSink Simple implementation of canary sink that allows plotting to a file or standard output.
static class	CanaryTool.ZookeeperStdOutSink Output for 'zookeeper' mode.

从接口继承的嵌套类/接口 org.apache.hadoop.hbase.tool.Canary

Canary.Factory

字段概要

字段

限定符和类型	字段和说明
static TableName	DEFAULT_WRITE_TABLE_NAME
static String	HBASE_CANARY_FAIL_ON_ERROR
static String	HBASE_CANARY_REGION_READ_TABLE_TIMEOUT
static String	HBASE_CANARY_REGION_WRITE_SNIFFING
static String	HBASE_CANARY_REGION_WRITE_TABLE_NAME
static String	HBASE_CANARY_REGION_WRITE_TABLE_TIMEOUT
static String	HBASE_CANARY_REGIONSERVER_ALL_REGIONS
static String	HBASE_CANARY_TIMEOUT
static String	HBASE_CANARY_USE_REGEX
static String	HBASE_CANARY_ZOOKEEPER_PERMITTED_FAILURES

构造器概要

构造器

构造器和说明
CanaryTool()
CanaryTool(ExecutorService executor)

方法概要

方法

限定符和类型	方法和说明
int	checkRegions(String[] targets) Run Canary in Region mode.
int	checkRegionServers(String[] targets) Runs Canary in Region server mode.
int	checkZooKeeper() Runs Canary in Zookeeper mode.
org.apache.hadoop.conf.Configuration	getConf()
Map<String,String>	getReadFailures()
Map<String,String>	getWriteFailures()
static void	main(String[] args)
int	run(String[] args)
void	setConf(org.apache.hadoop.conf.Configuration conf)

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_WRITE_TABLE_NAME

public static final TableName DEFAULT_WRITE_TABLE_NAME

HBASE_CANARY_REGIONSERVER_ALL_REGIONS

public static final String HBASE_CANARY_REGIONSERVER_ALL_REGIONS

另请参阅:

常量字段值

HBASE_CANARY_REGION_WRITE_SNIFFING

public static final String HBASE_CANARY_REGION_WRITE_SNIFFING

另请参阅:

常量字段值

HBASE_CANARY_REGION_WRITE_TABLE_TIMEOUT

public static final String HBASE_CANARY_REGION_WRITE_TABLE_TIMEOUT

另请参阅:

常量字段值

HBASE_CANARY_REGION_WRITE_TABLE_NAME

public static final String HBASE_CANARY_REGION_WRITE_TABLE_NAME

另请参阅:

常量字段值

HBASE_CANARY_REGION_READ_TABLE_TIMEOUT

public static final String HBASE_CANARY_REGION_READ_TABLE_TIMEOUT

另请参阅:

常量字段值

HBASE_CANARY_ZOOKEEPER_PERMITTED_FAILURES

public static final String HBASE_CANARY_ZOOKEEPER_PERMITTED_FAILURES

另请参阅:

常量字段值

HBASE_CANARY_USE_REGEX

public static final String HBASE_CANARY_USE_REGEX

另请参阅:

常量字段值

HBASE_CANARY_TIMEOUT

public static final String HBASE_CANARY_TIMEOUT

另请参阅:

常量字段值

HBASE_CANARY_FAIL_ON_ERROR

public static final String HBASE_CANARY_FAIL_ON_ERROR

另请参阅:

常量字段值

构造器详细资料

CanaryTool

public CanaryTool()

CanaryTool

public CanaryTool(ExecutorService executor)

方法详细资料

checkRegions

public int checkRegions(String[] targets)
                 throws Exception

从接口复制的说明: Canary

Run Canary in Region mode.

指定者:

checkRegions 在接口中 Canary

参数:

targets - -- list of monitor tables.

返回:

the exit code of the Canary tool.

抛出:

Exception

checkRegionServers

public int checkRegionServers(String[] targets)
                       throws Exception

从接口复制的说明: Canary

Runs Canary in Region server mode.

指定者:

checkRegionServers 在接口中 Canary

参数:

targets - -- list of monitor tables.

返回:

the exit code of the Canary tool.

抛出:

Exception

checkZooKeeper

public int checkZooKeeper()
                   throws Exception

从接口复制的说明: Canary

Runs Canary in Zookeeper mode.

指定者:

checkZooKeeper 在接口中 Canary

返回:

the exit code of the Canary tool.

抛出:

Exception

getConf

public org.apache.hadoop.conf.Configuration getConf()

指定者:

getConf 在接口中 org.apache.hadoop.conf.Configurable

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

指定者:

setConf 在接口中 org.apache.hadoop.conf.Configurable

run

public int run(String[] args)
        throws Exception

指定者:

run 在接口中 org.apache.hadoop.util.Tool

抛出:

Exception

getReadFailures

public Map<String,String> getReadFailures()

指定者:

getReadFailures 在接口中 Canary

getWriteFailures

public Map<String,String> getWriteFailures()

指定者:

getWriteFailures 在接口中 Canary

main

public static void main(String[] args)
                 throws Exception

抛出:

Exception