Enrico Olivelli created BOOKKEEPER-912:
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Summary: Allow EnsemblePlacementPolicy to choose bookies using
ledger custom data (multitenancy support)
Key: BOOKKEEPER-912
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-912
Project: Bookkeeper
Issue Type: New Feature
Components: bookkeeper-client
Affects Versions: 4.4.0
Reporter: Enrico Olivelli
I would like to restrict the set of bookies to be used for a specific ledger.
Actually a single EnsemblePlacementPolicy is used for all the ledgers.
This is because I want to create a ledger only using a dedicated set of
machines/bookies which are dedicated to the 'tenant' for which I'm creating the
ledger.
We can add an optional (byte[]) parameter to asyncCreateLedger which in turn is
to be passed to the configured EnsemblePlacementPolicy which in turn will be
able to decide which are the most suitable bookies for the tenant.
This parameter must be stored on ledger metadata, in order to be used in
replaceBookie.
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