kafka git commit: KAFKA-3557; Update rocksdb to 4.4.1 and patch updates to snappy and slf4j

[gu...@apache.org]

Repository: kafka
Updated Branches:
  refs/heads/trunk f4d3d2865 -> 4fa456bc6


KAFKA-3557; Update rocksdb to 4.4.1 and patch updates to snappy and slf4j

* The hope is that RocksDb 4.4.1 is more stable than 4.1.0 (occasional segfaults) and 4.2.0 (very frequent segfaults), release notes for 4.4.1: https://www.facebook.com/groups/rocksdb.dev/permalink/925995520832296/
* slf4j 1.7.21 includes thread-safety fixes: http://www.slf4j.org/news.html
* snappy 1.1.2.4 includes performance improvements requested by Spark, which apply to our usage: https://github.com/xerial/snappy-java/blob/master/Milestone.md

I ran the stream tests several times and they passed every time while 4.2.0 segfaulted every time.

Author: Ismael Juma <is...@juma.me.uk>

Reviewers: Eno Thereska <en...@gmail.com>, Guozhang Wang <wa...@gmail.com>

Closes #1219 from ijuma/kafka-3557-update-rocks-db-4.4.1-snappy-slf4j


Project: http://git-wip-us.apache.org/repos/asf/kafka/repo
Commit: http://git-wip-us.apache.org/repos/asf/kafka/commit/4fa456bc
Tree: http://git-wip-us.apache.org/repos/asf/kafka/tree/4fa456bc
Diff: http://git-wip-us.apache.org/repos/asf/kafka/diff/4fa456bc

Branch: refs/heads/trunk
Commit: 4fa456bc6e875c819e41aadadd1e37ba9bdb9cd0
Parents: f4d3d28
Author: Ismael Juma <is...@juma.me.uk>
Authored: Thu Apr 14 10:44:05 2016 -0700
Committer: Guozhang Wang <wa...@gmail.com>
Committed: Thu Apr 14 10:44:05 2016 -0700

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 gradle/dependencies.gradle | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
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http://git-wip-us.apache.org/repos/asf/kafka/blob/4fa456bc/gradle/dependencies.gradle
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diff --git a/gradle/dependencies.gradle b/gradle/dependencies.gradle
index 87e83cb..8b292e8 100644
--- a/gradle/dependencies.gradle
+++ b/gradle/dependencies.gradle
@@ -37,12 +37,12 @@ versions += [
   metrics: "2.2.0",
   powermock: "1.6.4",
   reflections: "0.9.10",
-  rocksDB: "4.1.0",
+  rocksDB: "4.4.1",
   scalaTest: "2.2.6",
   scalaParserCombinators: "1.0.4",
   scoverage: "1.1.1",
-  slf4j: "1.7.18",
-  snappy: "1.1.2.1",
+  slf4j: "1.7.21",
+  snappy: "1.1.2.4",
   zkclient: "0.8",
   zookeeper: "3.4.6",
 ]