Ivan Kelly created BOOKKEEPER-303:
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Summary: LedgerMetadata should serialized using protobufs
Key: BOOKKEEPER-303
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-303
Project: Bookkeeper
Issue Type: Bug
Reporter: Ivan Kelly
Assignee: Ivan Kelly
Fix For: 4.1.0
Google protobufs is a library for serializing and deserializing data. It
elegantly handles the cases where new data is added to a data format. This is
useful in the case of something like LedgerMetadata, which may change over
time. However, at the moment, whenever we make a change to the LedgerMetadata
serialization format we have to break compatibility with old clients. By using
protobufs, even if we add something to the format, old clients should be able
to read the ledgers.
We should also change our protocols to use protobufs for the same reason, but
this should be done in 4.3.0.
http://code.google.com/p/protobuf/
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