5

I have problems opening a berkeley db in python using bdtables. As bdtables is used by the library I am using to access the database, I need it to work.

The problem seems to be that the db environment I am trying to open (I got a copy of the database to open), is version 4.4 while libdb is version 4.6. I get the following error using bsddb.dbtables.bsdTableDB([dbname],[folder]):

(-30972, "DB_VERSION_MISMATCH: Database environment version mismatch -- Program version 4.6 doesn't match environment version 4.4")

However, bsddb.btopen([dbname]) works.

I have also tried installing db4.4-util, db4.5-util and db4.6-util. Trying to use db4.6_verify results in:

db4.6_verify: Program version 4.6 doesn't match environment version 4.4 db4.6_verify: DB_ENV->open: DB_VERSION_MISMATCH: Database environment version mismatchs

db4.4_verify results in the computer just hanging, and nothing happening.

Finally, if I run db4.4_recover on the database, that works. However, afterwards I get the following error 'No such file or directory' in python.

Improve this question

2 Answers 2

Reset to default
3

I think answers should go in the "answer" section rather than as an addendum to the question since that marks the question as having an answer on the various question-list pages. I'll do that for you but, if you also get around to doing it, leave a comment on my answer so I can delete it.

Quoting "answer in question":

Verifying everything in this question, I eventually solved the problem. The 'No such file or directory' are caused by some __db.XXX files missing. Using

bsddb.dbtables.bsdTableDB([dbname],[folder], create=1)

after db4.4_recover, these files got created and everything is now working.

Still, it was a bit of an obscure problem, and initially hard to figure out. But thanks to the question Examining Berkeley DB files from the CLI, I got the tools I needed. I'll just post it here if someone ends up with the same problem in the future and end up at stackoverflow.com

Improve this answer
Sign up to request clarification or add additional context in comments.

2 Comments

I posted the answer myself as well no. A shame that I can't accept my own answer, I think this is the 2nd question I ended up answering myself :).
Perhaps the time has come to delete this?
0

Damn, verifying everything in this question I eventually solved the problem. The 'No such file or directory' are caused by some __db.XXX files missing. Using bsddb.dbtables.bsdTableDB([dbname],[folder], create=1) after db4.4_recover, these files got created and everything is now working.

Still, it was a bit of an obscure problem, and initially hard to figure out. But thanks to the question Examining Berkeley DB files from the CLI I got the tools I needed. I'll just post it here if someone ends up with the same problem in the future and end up at stackoverflow.com

Improve this answer

Comments

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.