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stack commented on HBASE-487: ----------------------------- I'll add in the jar then. Tim, that dslkit is GPL so I can't check it in (Looks good though... ) > Replace hql w/ a hbase-friendly jirb or jython shell > ---------------------------------------------------- > > Key: HBASE-487 > URL: https://issues.apache.org/jira/browse/HBASE-487 > Project: Hadoop HBase > Issue Type: Wish > Reporter: stack > Assignee: stack > Priority: Minor > Fix For: 0.2.0 > > Attachments: groovy-2.patch, groovy.patch, jruby.patch > > > The hbase shell is a useful admin and debugging tool but it has a couple of > downsides. To extend, a fragile parser definition needs tinkering-with and > new java classes must be added. The current test suite for hql is lacking > coverage and the current code could do with a rewrite having evolved > piecemeal. Another downside is that the presence of an HQL interpreter gives > the mis-impression that hbase is like a SQL database. > This 'wish' issue suggests that we jettison HQL and instead offer users a > jirb or jython command line. We'd ship with some scripts and jruby/jython > classes that we'd source on startup to do things like import base client > classes -- so folks wouldn't have to remember all the packages stuff sat in > -- and added a pretty-print for scanners and getters outputting text, xhtml > or binary. They would also make it easy to do HQL-things in jruby/python > script. > Advantages: Already-written parser with no need of extension probing deeper > into hbase: i.e. better for debugging than HQL could ever be. Easy extension > adding scripts/modules rather than java code. Less likely hbase could be > confused for a SQL db. > Downsides: Probably more verbose. Requires ruby or python knowledge > ("Everyone knows some sql"). Big? (jruby lib is 24M). > I was going to write security as downside but HQL suffers this at the moment > too -- though it has been possible to sort the updates from the selects in > the UI to prevent modification of the db from the UI, something that would be > hard to do in a jruby/jython parser. > What do others think? -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.