Re: [Zope-dev] find unused objects: hopefully the last misunderstanding...
* > Starting at root, check all objects if they are referenced, * > and produce a list of those which are not, for cleanup purposes. * Packing the database cleans up in this manner. Oh well. Third try: I know about the 'pack database' button. Garbage collection of this kind is not my problem. I have lots of scripts, dtml methods etc. everywhere which are perfectly well-known to the ZODB, nothing wrong with that, but which are simply not used by me anymore. No usage from other scripts nor methods nor documents. And these buggers I'd like to find. Finally unmistakeable? Tobias Herp
extremely expensive. you would have to... - assemble a list of all objects IDs in the ZODB and then... - parse all contents of all objects and check against that ID list. you would probably need a little counter for every single ID that gets incremented upon finding its ID referenced, and all those that are left over with the counter at 0 in the end would probably be candidates for removal. this schema will fall down the moment your object IDs are not unique across the whole ZODB. besides, every object is potentially different in how you access and read its "contents". if your whole intent is to have a "cleaner ZODB" and there is no pressing reason to do this cleanup, i would just forget about it. jens On Friday, Aug 30, 2002, at 07:48 US/Eastern, THerp@apriori.de wrote:
* > Starting at root, check all objects if they are referenced, * > and produce a list of those which are not, for cleanup purposes.
* Packing the database cleans up in this manner.
Oh well. Third try: I know about the 'pack database' button. Garbage collection of this kind is not my problem.
I have lots of scripts, dtml methods etc. everywhere which are perfectly well-known to the ZODB, nothing wrong with that, but which are simply not used by me anymore. No usage from other scripts nor methods nor documents. And these buggers I'd like to find.
Finally unmistakeable?
Tobias Herp
THerp@apriori.de wrote:
I have lots of scripts, dtml methods etc. everywhere which are perfectly well-known to the ZODB, nothing wrong with that, but which are simply not used by me anymore. No usage from other scripts nor methods nor documents. And these buggers I'd like to find.
They're impossible to find :)) Take for example the 'index_html' of a folder: nothing else in my Zope app refers to it. But whenever someone browses to http://my.zopeserver.com/folder they see that 'index_html'. No automatic method can guess what objects have become irrelevant. If you want to find everything that isn't refered to by another Zope object, you could use 'sitecopy' to make a filesystem copy of everything in your ZODB, 'ls -R' to get a list of filenames, and 'grep -r filename *' for each filename in the list. If the grep returns nothing, nothing refers to that object. You could do the same kind of thing ('ls -R' and 'grep') from the Zope Management Interface using Jerome Alet's zshell. -- Jean Jordaan Upfront Systems http://www.upfrontsystems.co.za
participants (3)
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Jean Jordaan -
Jens Vagelpohl -
THerp＠apriori.de