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nixos/hadoop: release notes

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illustris 2021-11-03 22:59:17 +05:30
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23
nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
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@ -50,6 +50,29 @@
guide</link> is available. guide</link> is available.
</para> </para>
</listitem> </listitem>
<listitem>
<para>
Improvements have been made to the Hadoop module and package:
</para>
<itemizedlist spacing="compact">
<listitem>
<para>
HDFS and YARN now support production-ready highly
available deployments with automatic failover.
</para>
</listitem>
<listitem>
<para>
Hadoop now defaults to Hadoop 3, updated from 2.
</para>
</listitem>
<listitem>
<para>
JournalNode, ZKFS and HTTPFS services have been added.
</para>
</listitem>
</itemizedlist>
</listitem>
<listitem> <listitem>
<para> <para>
Activation scripts can now opt int to be run when running Activation scripts can now opt int to be run when running

5
nixos/doc/manual/release-notes/rl-2111.section.md
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@ -18,6 +18,11 @@ In addition to numerous new and upgraded packages, this release has the followin
- spark now defaults to spark 3, updated from 2. A [migration guide](https://spark.apache.org/docs/latest/core-migration-guide.html#upgrading-from-core-24-to-30) is available. - spark now defaults to spark 3, updated from 2. A [migration guide](https://spark.apache.org/docs/latest/core-migration-guide.html#upgrading-from-core-24-to-30) is available.
- Improvements have been made to the Hadoop module and package:
- HDFS and YARN now support production-ready highly available deployments with automatic failover.
- Hadoop now defaults to Hadoop 3, updated from 2.
- JournalNode, ZKFS and HTTPFS services have been added.
- Activation scripts can now opt int to be run when running `nixos-rebuild dry-activate` and detect the dry activation by reading `$NIXOS_ACTION`. - Activation scripts can now opt int to be run when running `nixos-rebuild dry-activate` and detect the dry activation by reading `$NIXOS_ACTION`.
This allows activation scripts to output what they would change if the activation was really run. This allows activation scripts to output what they would change if the activation was really run.
The users/modules activation script supports this and outputs some of is actions. The users/modules activation script supports this and outputs some of is actions.