[GitHub] eolivelli commented on a change in pull request #1518: [RELEASE] Release Notes for Release 4.7.1

[GitBox <gi...@apache.org>]

eolivelli commented on a change in pull request #1518: [RELEASE] Release Notes for Release 4.7.1
URL: https://github.com/apache/bookkeeper/pull/1518#discussion_r195634821
 
 

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 File path: site/docs/4.7.1/overview/releaseNotes.md
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+---
+title: Apache BookKeeper 4.7.1 Release Notes
+---
+
+This is the eleventh release of Apache BookKeeper!
+
+The 4.7.1 release is a bugfix release which fixes a bunch of issues reported from users of 4.7.0.
+
+Apache BookKeeper users who are using 4.7.0 are encouraged to upgrade to 4.7.1. The technical details of this release are summarized
+below.
+
+## Highlights
+
+- Performance enhancement on eliminating bytes copying in `AddEntry` code path, see [apache/bookkeeper#1361](https://github.com/apache/bookkeeper/pull/1361)
+
+- Introduce Fast and Garbage-Free Statistics Timers in Codahale Stats Provider, see [apache/bookkeeper#1364](https://github.com/apache/bookkeeper/pull/1364)
+
+- Fix OrderedScheduler handling null key, see [apache/bookkeeper#1372](https://github.com/apache/bookkeeper/pull/1372)
+
+- Fix zookeeper ledger manager on handling no ledger exists, see [apache/bookkeeper#1382](https://github.com/apache/bookkeeper/pull/1382)
+
+- Fix long poll reads when ensemble size is larger than write quorum size, see [apache/bookkeeper#1404](https://github.com/apache/bookkeeper/pull/1404)
+
+- Fix IllegalReferenceCount on filling readahead cache for DbLedgerStorage, see [apache/bookkeeper#1487](https://github.com/apache/bookkeeper/issues/1487)
+
+- Fix LedgerEntry recycling issue on long poll speculative reads, see [apache/bookkeeper#1509](https://github.com/apache/bookkeeper/pull/1509)
+
+- Various bug fixes and improvements around bookkeeper table service, see changes under [apache/bookkeeper#release/4.7.1](https://github.com/apache/bookkeeper/issues?utf8=%E2%9C%93&q=is%3Aclosed+label%3Aarea%2Ftableservice+label%3Arelease%2F4.7.1)
+
+### Dependencies Upgrade
+
+Here is a list of dependencies changed in 4.7.1:
+
+- [Grpc](https://grpc.io/) is upgraded from `1.5.0` to `1.12.0`. See [apache/bookkeeper#1441](https://github.com/apache/bookkeeper/pull/1441)
+- [Netty](http://netty.io/) is upgraded from `4.1.12` to `4.1.22`. See [apache/bookkeeper#1441](https://github.com/apache/bookkeeper/pull/1441)
 
 Review comment:
   For java <= 9 we can suggest to add io.netty.trySetAccessible system property.
   See https://github.com/netty/netty/pull/7650 for reference.
   
   Otherwise they could see performance degradation (I never measured it systematically on jdk9/10)

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