[Zope] ZODB error when trying to index object (Input/output error)

[J Cameron Cooper]

Felix Ulrich-Oltean wrote:

> I get the following error when certain new objects are added into a
> plone site - when archetypes tries to set the UID, it asks the catalog
> for all unique values of the index "UID".  I;ve never had input/output
> errors before from the ZODB.  There's definitely enough space on the
> drive and objects are added fine - it's just that the UID is then not
> set, which breaks all sorts of Archetypes stuff.  Any ideas how I can
> hunt this one down?

This IOError typically indicates a rights problem at the filesystem 
level. I could also be a full-disk problem or maybe a file corruption.

Check the OS-level stuff first, and then try the usual ZODB 
check/recover stuff.

I don't think this is relevant, but it may be useful:

http://mail.python.org/pipermail/python-list/2003-March/151633.html

		--jcc

> 2005-06-20T13:15:26 ERROR(200) ZODB Couldn't load state for 0x111310
> Traceback (most recent call last):
>   File "/usr/local/zope/lib/python/ZODB/Connection.py", line 597, in setstate
>     p, serial = self._storage.load(oid, self._version)
>   File "/usr/local/zope/lib/python/ZODB/FileStorage.py", line 689, in load
>     return self._load(oid, version, self._index, self._file)
>   File "/usr/local/zope/lib/python/ZODB/FileStorage.py", line 662, in _load
>     h = read(DATA_HDR_LEN)
> IOError: [Errno 5] Input/output error
> ------
> 2005-06-20T13:15:26 ERROR(200) Archetypes None
> Traceback (most recent call last):
>   File "/zope/global-products/Archetypes/Referenceable.py", line 69, in _register
>     cid = archetype_tool.registerContent(self)
>   File "/zope/global-products/Archetypes/ArchetypeTool.py", line 681, in registerContent
>     cid = self._genId(object)
>   File "/zope/global-products/Archetypes/ArchetypeTool.py", line 659, in _genId
>     keys = catalog.uniqueValuesFor('UID')
>   File "/usr/local/zope/lib/python/Products/ZCatalog/ZCatalog.py", line 562, in uniqueValuesFor
>     return self._catalog.uniqueValuesFor(name)
>   File "/usr/local/zope/lib/python/Products/ZCatalog/Catalog.py", line 425, in uniqueValuesFor
>     return self.getIndex(name).uniqueValues()
>   File "/usr/local/zope/lib/python/Products/PluginIndexes/common/UnIndex.py", line 445, in uniqueValues
>     return tuple(self._index.keys())
>   File "/usr/local/zope/lib/python/ZODB/Connection.py", line 597, in setstate
>     p, serial = self._storage.load(oid, self._version)
>   File "/usr/local/zope/lib/python/ZODB/FileStorage.py", line 689, in load
>     return self._load(oid, version, self._index, self._file)
>   File "/usr/local/zope/lib/python/ZODB/FileStorage.py", line 662, in _load
>     h = read(DATA_HDR_LEN)
> IOError: [Errno 5] Input/output error

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