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Monday, March 20, 2006
WxMonitor Update
I discovered some more issues when running through a poor quality SOHO router. Not only does it not like concurrent access,
it drops packets randomly even with synchronized access. You can improve the client behavior by adding
-Dsun.net.client.defaultReadTimeout=60000
to the Java command line. This way, the client will time out after 60 seconds, and keep running, rather than hang indefinitely.
You should not attempt to use the timeout to keep things humming along by making the timeout short; this will cause problems
when downloading logs and history. You can't make a timeout both short enough to perform well and long enough to be reliable.
The problem is still with the router. It is the thing that really needs to be fixed.
The Windows shortcuts will have this modification starting with version ow4j060320.
WxService Update
I added synchronization to the web service client. The web service is thread-safe end-to-end, but some routers seem to
drop packets when clients attempt concurrent access, causing client request timeouts. The syncronization seems to prevent
the timeouts (version ow4j060319).
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Welcome!
This site is dedicated to my interest in engineering. I use it as a place to just put stuff "out there" for anyone who
might be interested, as well as a job search tool. This page contains my engineering web log (to your left). Anything that
seems timeless enough, or too involved for a log entry may get it's own page as a full-blown article. And, of course, my resume
is here for anyone who might be considering hiring me to do something. Email me.
About Me
I have worked as a broadcast engineer, electronics designer (analog and digital) and software developer. I especially
enjoy audio engineering, although I've been writing software for the last several years, since that's where the opportunities
are in the Pacific Northwest (this is Microsoft country after all). I'm currently working as a Senior Staff Engineer -- Resume at another large independent software vendor in Washington State.
I majored in mathematics and physics in college. Other interests include music appreciation (baroque, classical and early
romantic, ragtime, and 60's and 70's rock & roll), high fidelity audio electronics, meteorology and of course, computing
hardware and software. I tend to think a lot like this guy.
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