Unhelpful failure when wrong version of redis is installed

[fantapop]

The default redis installation in ubuntu 12.04 is 2.2. If I was paying closer attention to the requirements I would have noticed that hatch requires 2.6+. Instead I got this error message when trying to visit the root:

Error: zrange lua script is not loaded
at RedisHQ.all (/home/chrisf/dev/hatchjs/node_modules/jugglingdb-redis-hq/lib/adapter.js:839:19)
at Function.all (/home/chrisf/dev/hatchjs/node_modules/jugglingdb/lib/model.js:487:25)
at Function.findOne (/home/chrisf/dev/hatchjs/node_modules/jugglingdb/lib/model.js:602:10)
at loadPage (/home/chrisf/dev/hatchjs/lib/middleware.js:116:26)
at async.parallel.req.member (/home/chrisf/dev/hatchjs/lib/middleware.js:54:17)
at /home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:511:21
at /home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:227:13
at /home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:111:13
at Array.forEach (native)
at _each (/home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:32:24)
at async.each (/home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:110:9)
at _asyncMap (/home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:226:9)
at Object.map (/home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:204:23)
at _parallel (/home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:509:20)
at Object.async.parallel (/home/chrisf/dev/hatchjs/node_modules/async/lib/async.js:539:9)
at Object.hatchMiddleware as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:168:78)
at end (/home/chrisf/dev/hatchjs/lib/middleware.js:35:13)
at Object.rewriteMiddleware as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.handle (/home/chrisf/dev/hatchjs/lib/middleware.js:294:9)
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.csrfProtection as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.module.exports as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.methodOverride as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.session as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.cookieParser as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.multipart as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.json as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at Object.urlencoded as handle
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/lib/proto.js:193:15)
at SendStream.error (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/connect/node_modules/serve-static/index.js:86:37)
at SendStream.EventEmitter.emit (events.js:95:17)
at SendStream.error (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/send/lib/send.js:172:51)
at SendStream.onStatError (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/send/lib/send.js:285:48)
at next (/home/chrisf/dev/hatchjs/node_modules/express/node_modules/send/lib/send.js:484:28)
at /home/chrisf/dev/hatchjs/node_modules/express/node_modules/send/lib/send.js:492:23
at Object.oncomplete (fs.js:107:15)

Obviously this is a feature request but it would be nice to have a failure on startup that gives a more reasonable error.

[randunel]

I believe this is an issue for jugglingdb/redis-hq-adapter