[pybsddb] BDB Indexing and Joined Cursor issue

[Sury Soni]

Hi All,

 

I am having issue in using joined cursor for indexed database.

 

When, there are no records for given joined cursor, ideally,
jonedCursor.get(0) should return None or raise some exception.

 

But, in my case, I am getting 

 

(-30975, 'DB_RUNRECOVERY: Fatal error, run database recovery -- PANIC:
Invalid argument')

Traceback (most recent call last):

  File "dbNode.py", line 71, in next

    data = self.joinedCursor.get(0)

 

Later, 

 

Exception in destroy:  (-30975, 'DB_RUNRECOVERY: Fatal error, run
database recovery -- PANIC: fatal region error detected; run recovery')

Traceback (most recent call last):

  File "dbNode.py", line 91, in destroy

    self.joinedCursor.close()

 

Is there any quick fix solution I can do?

 

If these exceptions are getting raised due to some other replication
related issue, there is no mechanism I can get that error code and
handle the error accordingly.

 

When I look into the source code, I can see following comments around
this join function wrapper API.

 

    /* FIXME: this is a buggy interface.  The returned cursor

       contains internal references to the passed in cursors

       but does not hold python references to them or prevent

       them from being closed prematurely.  This can cause

       python to crash when things are done in the wrong order. */

____________________________________
Sury Prakash Soni
Developer
____________________________________

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