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https://issues.apache.org/jira/browse/NIFI-3680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16082601#comment-16082601
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Joseph Niemiec commented on NIFI-3680:
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Just some more detail, it appears zkCli parses commands using a space as a
split key.
https://github.com/apache/zookeeper/blob/b9beabf5cfbb8e447f67a8050486ca2821132f61/src/java/main/org/apache/zookeeper/ZooKeeperMain.java#L156
> Zookeeper ZNodes for NiFi LeaderElection shouldn't use spaces for ease of use
> -----------------------------------------------------------------------------
>
> Key: NIFI-3680
> URL: https://issues.apache.org/jira/browse/NIFI-3680
> Project: Apache NiFi
> Issue Type: Improvement
> Affects Versions: 1.1.1
> Environment: Ubuntu 14, Oracle JDK 1.8.0_77, 3 Node cluster,
> Zookeeper 3.4.6 [2.5.3.0-37]
> Reporter: Joseph Niemiec
> Priority: Trivial
>
> When navigating the ZKCli for problems the current naming of ZNodes for
> leader-election isn't easy to navigate. Noticed that the default cli
> behaviour of a space is that is is stored as data inside the path of the
> znode specified. I assume the ZK Java API is being alittle more 'powerful'
> but it would be nice to enable operators a easier native way to check the
> little things.
> ```
> [zk: localhost:2181(CONNECTED) 7] ls /nifi/leaders/
> Primary Node Cluster Coordinator
> [zk: localhost:2181(CONNECTED) 7] ls /nifi/leaders/Primary Node
> Node does not exist: /nifi/leaders/Primary
> [zk: localhost:2181(CONNECTED) 8] ls /nifi/leaders/Cluster Coordinator
> Node does not exist: /nifi/leaders/Cluster
> [zk: localhost:2181(CONNECTED) 1] create /test blah
> Created /test
> [zk: localhost:2181(CONNECTED) 2] get /test
> blah
> cZxid = 0xb0000038e
> ctime = Thu Apr 06 21:24:10 EDT 2017
> mZxid = 0xb0000038e
> mtime = Thu Apr 06 21:24:10 EDT 2017
> pZxid = 0xb0000038e
> cversion = 0
> dataVersion = 0
> aclVersion = 0
> ephemeralOwner = 0x0
> dataLength = 4
> numChildren = 0
> ```
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