I am trying to use ZODB 3.10.2 on my web server which is running Debian and Python 2.7.1. It seems like every time I try to access the same database from 2 different processes, I get a mysterious e...

I am running Pyramid using pyramid_tm and pyramid_mailer. I am catching the following traceback by a Sentry logging service: Stacktrace (most recent call last): File "transaction/_transaction.py...

Looking at my ZEO workers I get to see quite a lot of: 2013-10-18T11:59:54 INFO ZPublisher.Conflict ConflictError at /VirtualHostBase/http/www.domain.com:80/Plone/VirtualHostRoot/: database confli...

I'm going to be writing a general object class for use with zodb. These objects will add themselves to a btree index once they are persisted to the zodb object graph. I've never really worked with...

I'm using ZODB which, as I understand it, uses pickle to store class instances. I'm doing a bit of refactoring where I want to split my models.py file into several files. However, if I do this, I d...

I am trying to handel the data generated by the following piece of code: for Gnodes in G.nodes() # Gnodes iterates over 10000 values Gvalue = someoperation(Gnodes) for Hnodes in H.nodes() # Hno...

Looking at plone.org to find a way to periodically pack my instance's ZODB I could only find http://plone.org/documentation/faq/how-do-i-pack-the-zodb that doesn't talk about automated packs, but j...

I'm using an object database (ZODB) in order to store complex relationships between many objects but am running into performance issues. As a result I started to construct indexes in order to speed...

My data.fs was 500 MB, so I packed it then backed it up, resulting in 100 MB. My hosting account is only 500 MB, so I am wondering if it is safe to delete data.fs.old (500 MB)?

I am using ZODB first time. Just trying to commit the data with FileStorage. But when I do the same script second time I am not able to commit the new object. Here is my script from ZODB import F...

The ZODB blobstorage directory contains a .layout file with the string 'lawn', 'bushy'. What is the difference between the various blob storage directory formats?

I am using plone.app.blob to store large ZODB objects in a blobstorage directory. This reduces size pressure on Data.fs but I have not been able to find any advice on backing up this data. I am al...

Current ZMI management "Pack database" functionality is little rough. 1) Could it be possible to have some kind of progress indicator for web UI? E.g. one telling how many minutes/hours are left g...

Writing an app in Python, and been playing with various ORM setups and straight SQL. All of which are ugly as sin. I have been looking at ZODB as an object store, and it looks a promising al...

I am a newbie to zope and I previously worked on Django for about 2.5 years. So when I first jumped into Zope(v2) (only because my new company is using it since 7 years), I faced these questions. P...