conformance.naming

Class ReplicationTest

java.lang.Object

test.Test

conformance.naming.NamingTest

conformance.naming.ReplicationTest

public class ReplicationTest
extends NamingTest

Tests naming server replication policy.

This test registers a storage server with a single file, and a second storage server with no files. It then accesses the file a large number of times. By the time all the accesses are complete, the naming server should have issued a command to the second server to copy the file from the first server. The "accesses" are performed by locking the file for shared access.

After testing replication in the manner described above, the test then locks the file for exclusive access. The file should now be deleted from exactly one of the two storage servers.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	ReplicationTest.InvalidationStorageServer Storage server expecting to be (potentially) notified that the file may be deleted.
private class	ReplicationTest.MirrorStorageServer Storage server expecting a request to copy the file.

Field Summary

Fields

Modifier and Type	Field and Description
private static int	ACCESS_COUNT Number of shared access requests to make in order to cause the file to be replicated.
private ReplicationTest.InvalidationStorageServer	hosting_server Storage server hosting the initial copy of the file.
private Storage	hosting_stub Stub for the storage server initially hosting the file.
private boolean	invalidated Indicates that the file has been invalidated.
private ReplicationTest.MirrorStorageServer	mirror_server Storage server receiving the replicated copy of the file.
static java.lang.String	notice Test notice.
static java.lang.Class[]	prerequisites Prerequisites.
private Path	replicate_file File to be replicated.
private boolean	replicated Indicates that the file has been replicated.
private boolean	wake_all Indicates that all waiting threads should terminate.

Fields inherited from class conformance.naming.NamingTest

registration_stub, service_stub

Constructor Summary

Constructors

Constructor and Description
ReplicationTest()

Method Summary

Modifier and Type	Method and Description
protected void	clean() Stops the storage servers and wakes any waiting threads.
protected void	initialize() Starts the two storage servers.
protected void	perform() Performs the test.

Methods inherited from class test.Test

cleanupFailure, cleanupSuccess, failure, success, task, task

Methods inherited from class java.lang.Object

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

Field Detail

notice

public static final java.lang.String notice

Test notice.

See Also:

Constant Field Values

prerequisites

public static final java.lang.Class[] prerequisites

Prerequisites.

hosting_server

private ReplicationTest.InvalidationStorageServer hosting_server

Storage server hosting the initial copy of the file.

mirror_server

private ReplicationTest.MirrorStorageServer mirror_server

Storage server receiving the replicated copy of the file.

hosting_stub

private Storage hosting_stub

Stub for the storage server initially hosting the file. The other server ensures that the naming server commands the copy to be done from this server.

replicate_file

private final Path replicate_file

File to be replicated.

replicated

private boolean replicated

Indicates that the file has been replicated.

invalidated

private boolean invalidated

Indicates that the file has been invalidated.

wake_all

private boolean wake_all

Indicates that all waiting threads should terminate.

ACCESS_COUNT

private static final int ACCESS_COUNT

Number of shared access requests to make in order to cause the file to be replicated.

See Also:

Constant Field Values

Constructor Detail

ReplicationTest

public ReplicationTest()

Method Detail

perform

protected void perform()
                throws TestFailed

Performs the test.

Specified by:

perform in class Test

Throws:

TestFailed

initialize

protected void initialize()
                   throws TestFailed

Starts the two storage servers.

Overrides:

initialize in class NamingTest

Throws:

TestFailed - If the naming server cannot be started, or if the stubs cannot be created.

clean

protected void clean()

Stops the storage servers and wakes any waiting threads.

Overrides:

clean in class NamingTest