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https://issues.apache.org/jira/browse/ZOOKEEPER-1962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14065359#comment-14065359
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Hongchao Deng commented on ZOOKEEPER-1962:
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hi [~ggop],
Great idea and nice work.
I wanna share a caveat I found and a few other comments for the patch:
h1. Race condition
The following situation could break your code:
Original it is
{code}
/a, /a/b, /a/b/c
{code}
Now the code calls
{code}
zk.getChildren("/a/b", false)
{code}
but some other threads
{code}
delete /a
{code}
before.
The code will throw an exception.
You have to capture it. A nice thing to do is notify the user. Or ignore things
under this path.
> Add a CLI command to recursively list a znode and children
> ----------------------------------------------------------
>
> Key: ZOOKEEPER-1962
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1962
> Project: ZooKeeper
> Issue Type: New Feature
> Components: java client
> Affects Versions: 3.4.6
> Reporter: Gautam Gopalakrishnan
> Assignee: Gautam Gopalakrishnan
> Priority: Minor
> Fix For: 3.5.0
>
> Attachments: ZOOKEEPER-1962.diff
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> When troubleshooting applications where znodes can be multiple levels deep
> (eg. HBase replication), it is handy to see all child znodes recursively
> rather than run an ls for each node manually.
> So I propose adding an option to the "ls" command (-r) which will list all
> child nodes under a given znode.
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