December 2015
Beginner to intermediate
122 pages
2h 23m
English
Content preview from Building Python Real time Applications with StormBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Troubleshooting
If the topology doesn't run correctly, review the log files created in the current directory. Errors are often caused by using a version of Storm that does not have a corresponding version of Petrel on the PyPI website (https://pypi.python.org/pypi/petrel). At the time of writing this book, two Storm versions are supported:
- 0.9.3
- 0.9.4
If you are using an unsupported version of Storm, you are likely to see an error similar to one of these:
File "/home/barry/.virtualenvs/petrel2/lib/python2.7/site-packages/petrel-0.9.3.0.3-py2.7.egg/petrel/cmdline.py", line 19, in get_storm_version return m.group(2) AttributeError: 'NoneType' object has no attribute 'group' IOError: [Errno 2] No such file or directory: '/home/barry/.virtualenvs/petrel2/lib/python2.7/site-packages/petrel-0.9.3.0.3-py2.7.egg/petrel/generated/storm-petrel-0.10.0-SNAPSHOT.jar' ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.