Package alluxio.cli.bundler.command

Class CollectMetricsCommand

java.lang.Object

alluxio.cli.bundler.command.AbstractCollectInfoCommand

alluxio.cli.bundler.command.CollectMetricsCommand

All Implemented Interfaces:

alluxio.cli.Command, java.io.Closeable, java.lang.AutoCloseable

public class CollectMetricsCommand
extends AbstractCollectInfoCommand

Command to probe Alluxio metrics for a few times.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	COMMAND_NAME
static org.apache.commons.cli.Options	OPTIONS

Fields inherited from class alluxio.cli.bundler.command.AbstractCollectInfoCommand

mFsContext, mWorkingDirPath

Constructor Summary

Constructors

Constructor	Description
CollectMetricsCommand(alluxio.client.file.FileSystemContext fsContext)	Creates a new instance of CollectMetricsCommand.

Method Summary

Modifier and Type	Method	Description
java.lang.String	getCommandName()
java.lang.String	getDescription()
static java.lang.String	getMetricsJson(java.lang.String url)	Probes Alluxio metrics json sink.
java.lang.String	getUsage()
static java.lang.String	masterMetrics(alluxio.client.file.FileSystemContext fsContext)	Get master metrics.
int	run(org.apache.commons.cli.CommandLine cl)
static java.util.List<java.lang.String>	workerMetrics(alluxio.client.file.FileSystemContext fsContext)	Get metrics from each worker.

Methods inherited from class alluxio.cli.bundler.command.AbstractCollectInfoCommand

generateOutputFile, getWorkingDirectory, validateArgs

Methods inherited from class java.lang.Object

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

Methods inherited from interface alluxio.cli.Command

close, getOptions, getSubCommands, hasSubCommand, parseAndValidateArgs

Field Detail

COMMAND_NAME

public static final java.lang.String COMMAND_NAME

See Also:

Constant Field Values

OPTIONS

public static final org.apache.commons.cli.Options OPTIONS

Constructor Detail

CollectMetricsCommand

public CollectMetricsCommand(alluxio.client.file.FileSystemContext fsContext)

Creates a new instance of CollectMetricsCommand.

Parameters:

fsContext - the FileSystemContext to execute in

Method Detail

getCommandName

public java.lang.String getCommandName()

run

public int run(org.apache.commons.cli.CommandLine cl)
        throws alluxio.exception.AlluxioException,
               java.io.IOException

Throws:

alluxio.exception.AlluxioException

java.io.IOException

getUsage

public java.lang.String getUsage()

getDescription

public java.lang.String getDescription()

masterMetrics

public static java.lang.String masterMetrics(alluxio.client.file.FileSystemContext fsContext)

Get master metrics.

Parameters:

fsContext - for connecting to master

Returns:

the string of master metrics in JSON format

workerMetrics

public static java.util.List<java.lang.String> workerMetrics(alluxio.client.file.FileSystemContext fsContext)
                                                      throws java.io.IOException

Get metrics from each worker.

Parameters:

fsContext - for connecting to master

Returns:

a list of worker metrics in JSON format

Throws:

java.io.IOException

getMetricsJson

public static java.lang.String getMetricsJson(java.lang.String url)
                                       throws java.io.IOException

Probes Alluxio metrics json sink. If the HTTP request fails, return the error content instead of throwing an exception.

Parameters:

url - URL that serves Alluxio metrics

Returns:

HTTP response in JSON string

Throws:

java.io.IOException