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• JMS catching when a JMS server goes away

  - by corydoras

  When there is a network problem which results in the client being disconnected from the JMS server, is there some other way to detect the problem other than waiting until the next JMS message being sent fails?

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• Using Objective C/Cocoa to unescape unicode characters, ie \u1234

  - by corydoras

  Some sites that I am fetching data from are returning UTF-8 strings, with the UTF-8 characters escaped, ie: \u5404\u500b\u90fd Is there a built in cocoa function that might assist with this or will I have to write my own decoding algorithm.

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• Mirror a git repository by pulling?

  - by corydoras

  I am wondering if there is an easy way, ie like a simple cron job, to regularly pull from a remote git repository to a local read only mirror for backup purposes? Ideally it would pull all branches and tags, but the master/trunk/head would be sufficient. I just need a way to make sure that if the master git server dies, we have a backup location that we could manually fail over to. (I have been googling and reading documentation for help on how to do this for quite some time now and the furthest I have gotten is a bash script that does pull's on a regular interval.)

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• Best compiled language for Mac OS X and Linux compatibility

  - by corydoras

  We need to write some software that will compile and run on both an Mac OS X server and Ubuntu. We would love to use Objective-C with all of its Cocoa goodness, however the GNUstep implementations of the parts we are using are broken (in the latest Ubuntu package anyway.) In light of this should we use C++ (I would really rather not), C or something else that we have not thought of? It is a server/back-end process that is very resource intensive, Java and other interpreted versions of this software perform much worse than the Objective-C proof of concept we have written, hence we now wish to re-write in a "compiled[1]" language. (NB: Some people might consider this subjective, however at the end of the day we do need to get a job done, there has to be a reasonably appropriate correct answer here). [1] Compiled to native CPU instructions, not compiled into "byte codes" that then have to be run by an interpreter.

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• Is it possible for bash commands to continue before the result of the previous command?

  - by corydoras

  When running commands from a bash script, does bash always wait for the previous command to complete, or does it just start the command then go on to the next one? ie: If you run the following two commands from a bash script is it possible for things to fail? cp /tmp/a /tmp/b cp /tmp/b /tmp/c

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