Apache ZooKeeper
· ZooKeeper is a centralized service for maintaining configuration information, naming,
providing distributed synchronization, and providing group services. All of these kinds
of services are used in some form or another by distributed applications. Each time they
are implemented there is a lot of work that goes into fixing the bugs and race conditions
that are inevitable. Because of the difficulty of implementing these kinds of services,
applications initially usually skimp on them ,which make them brittle in the presence of
change and difficult to manage. Even when done correctly, different implementations of
these services lead to management complexity when the applications are deployed.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window parent-3.9.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
