Need to remove unused zookeeper functions

[bijugs]

For e.g. here, the code got changed from :path to 'path' which is not recognized by ZooKeeper ruby.

[vt0r]

Ouch. Looks like a mistake when trying to move from pre- to post-1.9 hash syntax. Should read like this I think:
path: znode_path, data: node_name

[bijugs]

:path still works, but we have 'path' in quotes which I think never worked. The change went in as part of the commit "cf690ae7f5da6b9cf240b075bbbc01df8704c32a". If we have moved to locking cookbook, assuming some of these functions can be removed.

[leochen4891]

@bijugs Do you have an error message?

[cbaenziger]

We should have moved to locking_resource now. If we can remove these functions too that'd be great! As I recall formatting the HDFS ZKFC znode may use these znode handling functions though.

[bijugs]

ran zk.create('path' => znode_path, 'data' => node_name) manually on chef-shell and it returns a RC of -8 which corresponds to ZBADARGUMENTS. The chef-bach function returns false as if it is an issue with acquiring the lock i.e. creation of znode.

[leochen4891]

chef (12.19.36)> ret = zk.create('path' => znode_path, 'data' => node_name)
Zookeeper::Exceptions::BadArguments: Supported arguments are: [:path, :data, :acl, :ephemeral, :sequence, :callback, :callback_context], but arguments ["path", "data"] were supplied instead
        from /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/zookeeper-1.4.11/lib/zookeeper/client_methods.rb:267:in `assert_keys'
        from /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/zookeeper-1.4.11/lib/zookeeper/client_methods.rb:90:in `create'
        from (irb):24
        from /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/chef-12.19.36/lib/chef/shell.rb:75:in `block in start'
        from /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/chef-12.19.36/lib/chef/shell.rb:74:in `catch'
        from /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/chef-12.19.36/lib/chef/shell.rb:74:in `start'
        from /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/chef-12.19.36/bin/chef-shell:34:in `<top (required)>'
        from /usr/bin/chef-shell:57:in `load'
        from /usr/bin/chef-shell:57:in `<main>'

path: znode_path, data: node_name

works, thanks Sal

[cbaenziger]

So nothing should be calling acquire_restart_lock or zk.create in Chef-BACH any more -- that should now all be in locking_restart; that looks to be orphaned code? The only znode related function still called in Chef-BACH should be znode_exists.

@bijugs Where are you seeing zk.create run?

[bijugs]

As I mentioned in my earlier comment, if these functions are not used anymore we should remove them and this will be a non issue. It will prevent from any future use as I was trying to use it.

[cbaenziger]

Cool! Thanks @bijugs ; I've updated the title to reflect the desired direction and what is up. Yes, let us remove all Zookeeper related functions out of bcpc