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Sorry to bother you with such a trivial thing, but...

In durus.btree code, there is a class variable called "root_is"that is
not ever use in the entire Durus codebase. :-??


I'm still trying to triagle my bug. Not sure yet if the bug is in my
code or in durus one. The symptom: under unknown circunstances (rare;
I'm writting about 60-100 commits per second, and only saw two
ocurrences in a month) a btree can get two entries with the same key!.
That is, of course, impossible!!. But I'm seeing it :-). I can see both
entries iterating over the btree. Scary.

Obviously, the suspect is my own code, that uses threads heavily,
sharing a single durus connection. I don't use multiple connections
since each thread life is very brief (<<1 second) and sharing a single
connection also shares an unified object cache pool. Of course I take
care to serialize any access to durus storage with a mutex, so no
concurrent access.

And the bug is such a rare ocurrence that debugging it is a nightmare
since I can't manage to reproduce it myself.

Life sucks! :-)

- --
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