https://bugs.openldap.org/show_bug.cgi?id=10316
Issue ID: 10316
Summary: build/lib/mdb.c:5882: Assertion
'IS_BRANCH(mc->mc_pg[mc->mc_top])' failed in
mdb_cursor_sibling()
Product: LMDB
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: liblmdb
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
I am developing ETL software in Python and I am using lmdb as backend. For this
I am using https://github.com/jnwatson/py-lmdb
In this big process I am resizing the map_size dynamically. I would say it is
certainly possible that I am reading at the same time. I end up in the
following error:
build/lib/mdb.c:5882: Assertion 'IS_BRANCH(mc->mc_pg[mc->mc_top])' failed in
mdb_cursor_sibling()
I ran my application again with a predetermined map size, and it did not
assert. Since it is a single shot, I don't know if I can be certain that it
therefore does not happen.
When searching for it I found the following issue from 2017, suggesting it can
be reproduced when running the performance test.
https://github.com/bnclabs/dbperf/issues/1
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