78b280ef88
The getRawObjects call can throw (eg, if you can't connect to the mongo
server for too long). A few pieces of state were being corrupted in
that case:
- self._results was being set too early, leading to 'first' not being
set on future _pollMongo calls, and_multiplexer.ready() never being
called. This had two effects:
- The observe (and thus any subscription) would never become
ready(). Due to deduping, *no observe on this query* would
ever become ready either. This also implies that the
observeChanges that are part of _publishCursor would never return,
so the sub.onStop would never get called, so the observeHandle
would never stop, leading not only to leaks, but for an inability
for that query to ever stop being deduped with the corrupted
PollingObserveDriver!
- The onFlush calls would throw a "not ready" error instead of
calling the callback, so (a) errors would be logged and (b) write
fences would never be closed
Fixed this by not writing to self._results at the top of the function.
- writesForCycle was being lost, so those write fences would never
close. Fixed this by pushing writesForCycle back onto _pendingWrites
if getRawObjects throws.
Meteor
Meteor is an ultra-simple environment for building modern web applications.
With Meteor you write apps:
- in pure Javascript
- that send data over the wire, rather than HTML
- using your choice of popular open-source libraries
Documentation is available at http://docs.meteor.com/
Quick Start
Install Meteor:
curl https://install.meteor.com | /bin/sh
Create a project:
meteor create try-meteor
Run it:
cd try-meteor
meteor
Deploy it to the world, for free:
meteor deploy try-meteor.meteor.com
Slow Start (for developers)
If you want to run on the bleeding edge, or help develop Meteor, you can run Meteor directly from a git checkout.
git clone git://github.com/meteor/meteor.git
cd meteor
If you're the sort of person who likes to build everything from scratch, you can build all the Meteor dependencies (node.js, npm, mongodb, etc) with the provided script. This requires git, a C and C++ compiler, autotools, and scons. If you do not run this script, Meteor will automatically download pre-compiled binaries when you first run it.
# OPTIONAL
./scripts/generate-dev-bundle.sh
Now you can run meteor directly from the checkout (if you did not build the dependency bundle above, this will take a few moments to download a pre-build version).
./meteor --help
From your checkout, you can read the docs locally. The /docs directory is a
meteor application, so simply change into the /docs directory and launch
the app:
cd docs/
../meteor
You'll then be able to read the docs locally in your browser at
http://localhost:3000/
Note that if you run Meteor from a git checkout, you cannot pin apps to specific
Meteor releases or run using different Meteor releases using --release.
Uninstalling Meteor
Aside from a short launcher shell script, Meteor installs itself inside your home directory. To uninstall Meteor, run:
rm -rf ~/.meteor/
sudo rm /usr/local/bin/meteor
Developer Resources
Building an application with Meteor?
- Announcement list: sign up at http://www.meteor.com/
- Ask a question: http://stackoverflow.com/questions/tagged/meteor
- Meteor help and discussion mailing list: https://groups.google.com/group/meteor-talk
- IRC:
#meteoronirc.freenode.net
Interested in contributing to Meteor?
- Core framework design mailing list: https://groups.google.com/group/meteor-core
- Contribution guidelines: https://github.com/meteor/meteor/tree/devel/Contributing.md