Package alluxio.util

Interface Summary

Interface	Description
JsonSerializable	This represents stress test objects that can be ser/de to/from json.
ObjectSizeCalculator.MemoryLayoutSpecification	Describes constant memory overheads for various constructs in a JVM implementation.
RateLimiter	Used to limit the rate of operations.

Class Summary

Class	Description
BucketCounter	Bucket Counter Utility.
CommonUtils	Common utilities shared by all components in Alluxio.
ConfigurationUtils	Utilities for working with Alluxio configurations.
EnvironmentUtils	Utilities to detect environment Alluxio is running in.
ExceptionUtils	Utility methods for working with exceptions.
ExtensionUtils	Utility functions for working with extensions.
FeatureUtils	Utilities to detect features that Alluxio is running with.
FileSystemOptionsUtils	This class contains static methods which can be passed Alluxio configuration objects that will populate the gRPC options objects with the proper values based on the given configuration.
FormatUtils	Utility methods to parse specific formats, print according to specific formats or transform among different formats.
HashUtils	Util class for hashing.
HFSUtils	Utility method called in alluxio-mount.sh to calculate space for Mac OS X HFS+.
IdUtils	Utility methods for working with an id in Alluxio.
JvmPauseMonitor	Class to monitor JVM with a daemon thread, the thread sleep period of time and get the true time the sleep takes.
JvmPauseMonitor.GarbageCollectorMXBeanView	An unmodifiable view of a garbage collector MX Bean.
LogUtils	Utility methods for working with log.
ModeUtils	Utility methods for mode.
ObjectSizeCalculator	Contains utility methods for calculating the memory usage of objects.
OSUtils	OS related utility functions.
SecurityUtils	Utility methods for security.
ShellUtils	A utility class for running Unix commands.
SimpleRateLimiter	A basic implementation of RateLimiter.
SleepUtils	Sleep utilities shared by all components in Alluxio.
StreamUtils	Convenience methods for working with streams.
ThreadFactoryUtils	Utility methods for the ThreadFactory class.
ThreadUtils	Utility method for working with threads.
UnderFileSystemUtils	Utility functions for working with UnderFileSystem.
UnixMountInfo	Class representing an entry in a Unix /etc/fstab file.
UnixMountInfo.Builder	Builder for UnixMountInfo.
UnixMountInfo.Options	Unix mount info options.
UnixMountInfo.Options.Builder	Builder for Unix mount info options.
URIUtils	Utility methods for working with URIs.
WaitForOptions	Options for the CommonUtils.waitFor(java.lang.String, java.util.function.Supplier<java.lang.Boolean>) method.

Enum Summary

Enum	Description
CommonUtils.ProcessType	Alluxio process types.

Exception Summary

Exception	Description
ShellUtils.ExitCodeException	This is an IOException with exit code added.