Github user mxm commented on a diff in the pull request:
https://github.com/apache/flink/pull/2249#discussion_r71178603
--- Diff: docs/setup/config.md ---
@@ -272,7 +272,9 @@ For example when running Flink on YARN on an
environment with a restrictive fire
- `recovery.zookeeper.quorum`: Defines the ZooKeeper quorum URL which is
used to connet to the ZooKeeper cluster when the 'zookeeper' recovery mode is
selected
-- `recovery.zookeeper.path.root`: (Default '/flink') Defines the root dir
under which the ZooKeeper recovery mode will create znodes.
+- `recovery.zookeeper.path.root`: (Default '/flink') Defines the root dir
under which the ZooKeeper recovery mode will create namespace directories.
+
+- `recovery.zookeeper.path.namespace`: (Default '/default_ns' in
standalone mode, or the <yarn-application-id> under Yarn) Defines the
subdirectory under the root dir where the ZooKeeper recovery mode will create
znodes. This allows to isolate multiple applications on the same ZooKeeper.
--- End diff --
It would be nice to have a default namespace for the standalone mode as
well. How about generating a namespace from the `masters` files. Would hashing
the contents of the file be a good fit? That should be consistent across all
master nodes.
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