Add release note about the final 3.x release
Change-Id: I8e83d8c40893a395dedb6afcbec3dc86f8be0ac9
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@ -18,6 +18,8 @@ The following general configuration setting in
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This instructs ZooKeeper to purge old snapshots every 6 hours. This
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This instructs ZooKeeper to purge old snapshots every 6 hours. This
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will avoid filling the disk.
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will avoid filling the disk.
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.. _zk-encrypted-connections:
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Encrypted Connections
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Encrypted Connections
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---------------------
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---------------------
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@ -1,5 +1,7 @@
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:title: SQL Driver
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:title: SQL Driver
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.. _sql-driver:
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SQL
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SQL
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===
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===
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@ -0,0 +1,26 @@
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---
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prelude: |
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This is expected to be the last 3.x release of Zuul (barring any
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unanticpated bugfix releases).
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The next release of Zuul, 4.0.0, will require the following
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deployment changes:
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* TLS ZooKeeper connections
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* Network connectivity from all components to ZooKeeper
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* A SQL database
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These features are supported now, so it is important that you take
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this time to :ref:`switch your ZooKeeper connection to use
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TLS<zk-encrypted-connections>`, and :ref:`configure a SQL
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connection<sql-driver>`. Even though only some Zuul components
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connect to ZooKeeper today, you should ensure that the
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``[zookeeper]`` section is present in ``zuul.conf`` for all
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components, and that they have network connectivity to the ZooKeeper
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servers. Doing so will make the upgrade to 4.0.0 seamless.
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These changes are in support of ongoing work to enable multiple
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scheduler processes for scaling and availability. After the 4.0.0
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release, it is anticipated that further upgrades to Zuul made in
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support of this work will be done with minimal disruption in the
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course of normal releases.
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