Package org.apache.bookkeeper.verifier

Class BookkeeperVerifier

java.lang.Object

org.apache.bookkeeper.verifier.BookkeeperVerifier

public class BookkeeperVerifier
extends java.lang.Object

Encapsulates logic for playing and verifying operations against a bookkeeper-like interface. The test state consists of a set of ledgers in 1 of several states: 1) opening -- waiting for driver to complete open 2) open -- valid targets for reads and writes 3) live -- valid targets for reads 4) deleting Each ledger moves in sequence through these states. See startWrite for the code driving the lifecycle.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	BookkeeperVerifier.BookkeeperDriver	Provides an interface for translating test operations into operations on a cluster.
(package private) class	BookkeeperVerifier.EntryInfo	State required to regenerate an entry.
(package private) class	BookkeeperVerifier.LedgerInfo	Contains the state required to reconstruct the contents of any entry in the ledger.
(package private) class	BookkeeperVerifier.WriteCallback

Constructor Summary

Constructors

Constructor	Description
BookkeeperVerifier(BookkeeperVerifier.BookkeeperDriver driver, int ensembleSize, int writeQuorum, int ackQuorum, int duration, int drainTimeout, int targetConcurrentLedgers, int targetConcurrentWrites, int targetWriteGroup, int targetReadGroup, int targetLedgers, long targetLedgerSize, int targetEntrySize, int targetConcurrentReads, double coldToHotRatio)

Method Summary

Modifier and Type	Method	Description
void	run()	This is the method used to invoke the main loop of the IO driver.

Methods inherited from class java.lang.Object

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

Constructor Detail

BookkeeperVerifier

BookkeeperVerifier(BookkeeperVerifier.BookkeeperDriver driver,
                   int ensembleSize,
                   int writeQuorum,
                   int ackQuorum,
                   int duration,
                   int drainTimeout,
                   int targetConcurrentLedgers,
                   int targetConcurrentWrites,
                   int targetWriteGroup,
                   int targetReadGroup,
                   int targetLedgers,
                   long targetLedgerSize,
                   int targetEntrySize,
                   int targetConcurrentReads,
                   double coldToHotRatio)

Method Detail

run

public void run()
         throws java.lang.Exception

This is the method used to invoke the main loop of the IO driver. run() will loop starting IO requests until the time runs out on the test and all outstanding requests complete. Test execution state is accessed only under the instance lock for 'this'. There is no fine grained locking, hence run() simply needs to be synchronized and can wait for IOs to complete atomically with startWrite and startRead returning false (see those comments).

Throws:

java.lang.Exception