[GitHub] jvrao commented on a change in pull request #1611: BP-35: 128 bits support

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jvrao commented on a change in pull request #1611: BP-35: 128 bits support
URL: https://github.com/apache/bookkeeper/pull/1611#discussion_r211317259
 
 

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 File path: site/bps/BP-35-128-bits-support.md
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+---
+title: "BP-34: 128 bits support"
+issue: https://github.com/apache/bookkeeper/603
+state: "Under Discussion"
+design doc: https://docs.google.com/document/d/1cu54dNSV2ZrdWCi40LcyX8NxXGRCW0609T_ewmK9BWM
+release: "4.9.0"
+---
+
+### Motivation
+
+BookKeeper coordinates with a metadata store to generate a cluster wide `ledgerId`.
+Currently this is a signed `64 bit` number (effectively 63 bits). This method works
+great because we have a centralized metadata store for coordinating the id generation.
+However this method may not scale as the cluster size and number of ledgers grow.
+
+[Universally unique identifier - Wikipedia](https://en.wikipedia.org/wiki/Globally_unique_identifier)
 
 Review comment:
   That's my understanding too. So in that way, should we just keep calling it lid_usb? or something? naming it ```scope``` might make folks see things differently (mostly in the wrong way)

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