On Feb 12, 2007, at 12:25 PM, Andreas Jung wrote:
I have the following script to emulate a long running writing ZEO
client
by writing 100MB to a page template:
import transaction
pt = app.foo
while 1:
data = '*'*100000000
T = transaction.begin()
pt.pt_edit(data, 'text/html')
T.commit()
print 'done'
This script fails badly during during the first commit() call. Is
this a bug
or feature? I am using Zope 2.10.2 on MacOSX Intel.
Based on the traceback you gave, this looks like a bug. I've
noticed, however, that large database records can lead to memory
errors at sizes much smaller than I would expect. If the problem is
ultimately traced to a hidden memory error, there's not much that can
be done. In the long run, I expect we'll advise that "large" objects
be put in blobs, where "large" might be smaller than one might
expect. For example, I've seen 90MB records lead to memory errors
even on machines with a hundreds of megabytes free.
Jim
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