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Re: [sup-talk] Fwd: Re: Crash while in thread-view-mode
Excerpts from William Morgan's message of Sun Oct 11 16:28:48 -0400 2009:
> I'm sorry you've had to rebuild the index so many times. The Xapian side
> of things is very new, and I think you've had a run of bad luck. But I
> am personally not motivated to improve index time performance, because
> that's not a common event. At least, it shouldn't be.
Unfortunately, it seems that the crashes have returned (In fact, they
returned only hours after I rebuilt). Interestingly, it is once again my
LKML label that is the culprit.
On the note of crashing, is it really necessary for the "wrong id called
on nil" exception to be fatal? Couldn't the client at least make some
attempt at recovering (skipping the problematic thread while catching
and logging the exception)? It seems like these issues could be rather
tricky to sort out (I've put an hour or so into tracking down the source
of the nils to no avail), and with a dynamically typed language like
Ruby, could occur at any time. Considering this, it seems like it might
be a good idea to handle these failures a bit more gracefully. Would
this be problematic?
Regardless, it might be a good idea to have a hierarchy of exception
classes instead of just throwing Strings. It seems that throwing
specialized classes would make the above substantially easier.
Thanks,
- Ben
--- RuntimeError from thread: load threads for thread-index-mode
wrong id called on nil
/opt/exp/sup/lib/sup.rb:17:in `id'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:225:in `update'
/usr/lib64/ruby/1.8/rubygems/custom_require.rb:31:in `sort_by'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:225:in `each'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:225:in `sort_by'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:225:in `update'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:223:in `synchronize'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:223:in `update'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:628:in `__unprotected_load_n_threads'
/opt/exp/sup/lib/sup/thread.rb:334:in `load_n_threads'
/opt/exp/sup/lib/sup/xapian_index.rb:117:in `each_id_by_date'
/opt/exp/sup/lib/sup/xapian_index.rb:110:in `each_id'
/opt/exp/sup/lib/sup/xapian_index.rb:110:in `each'
/opt/exp/sup/lib/sup/xapian_index.rb:110:in `each_id'
/opt/exp/sup/lib/sup/xapian_index.rb:117:in `each_id_by_date'
/opt/exp/sup/lib/sup/thread.rb:328:in `load_n_threads'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:625:in `__unprotected_load_n_threads'
(eval):12:in `load_n_threads'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:609:in `load_n_threads_background'
/opt/exp/sup/lib/sup.rb:77:in `reporting_thread'
/opt/exp/sup/lib/sup.rb:75:in `initialize'
/opt/exp/sup/lib/sup.rb:75:in `new'
/opt/exp/sup/lib/sup.rb:75:in `reporting_thread'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:608:in `load_n_threads_background'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:679:in `__unprotected_load_threads'
(eval):12:in `load_threads'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:81:in `initialize'
/opt/exp/sup/lib/sup/modes/line-cursor-mode.rb:22:in `call'
/opt/exp/sup/lib/sup/modes/line-cursor-mode.rb:22:in `initialize'
/opt/exp/sup/lib/sup/modes/line-cursor-mode.rb:22:in `each'
/opt/exp/sup/lib/sup/modes/line-cursor-mode.rb:22:in `initialize'
/opt/exp/sup/lib/sup/modes/line-cursor-mode.rb:19:in `new'
/opt/exp/sup/lib/sup/modes/line-cursor-mode.rb:19:in `initialize'
/opt/exp/sup/lib/sup/modes/thread-index-mode.rb:54:in `initialize'
/opt/exp/sup/lib/sup/modes/label-search-results-mode.rb:9:in `initialize'
/opt/exp/sup/lib/sup/modes/label-search-results-mode.rb:32:in `new'
/opt/exp/sup/lib/sup/modes/label-search-results-mode.rb:32:in `spawn_nicely'
/opt/exp/sup/lib/sup/buffer.rb:350:in `spawn_unless_exists'
/opt/exp/sup/lib/sup/util.rb:520:in `send'
/opt/exp/sup/lib/sup/util.rb:520:in `method_missing'
/opt/exp/sup/lib/sup/modes/label-search-results-mode.rb:32:in `spawn_nicely'
/opt/exp/sup/lib/sup/modes/label-list-mode.rb:134:in `select_label'
/opt/exp/sup/lib/sup/mode.rb:51:in `send'
/opt/exp/sup/lib/sup/mode.rb:51:in `handle_input'
/opt/exp/sup/lib/sup/buffer.rb:267:in `handle_input'
/usr/bin/sup:245
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