Hi,

We are using the latest Zarafa ZWS - version 7.2.4-1.
This seems to be working fine with Mac Mail. However, we get many errors in the ws.log that eventually grows to 5 GB after a day or so.
This is on Debian 7 and we have to direct log output to /dev/null to prevent the disk space from being eaten up.
There is an Assertion error followed by an xmlParseDoc error that keeps recurring.


Example AssertionError:

2016-08-20 07:57:46,180 16636:-8d2b940 <93ed1397-84cc-4cf4-a702-5630be162ed5> [INFO ] zarafa_ws.fronten
d.request Executing request with params: {client_ip='192.168.1.33', user_agent='Mac OS X/10.11.6 (15G31);
ExchangeWebServices/6.0 (243); Mail/9.3 (3124)', auth_method='basic', email=None, username='tim', tenant=N
one, mapi_logon_succeeded=True, operation=u'GetItem'}
2016-08-20 07:57:46,320 16636:-8d2b940 <93ed1397-84cc-4cf4-a702-5630be162ed5> [ERROR ] zarafa_ws.fronten
d.request Trapped uncaught exception:
Traceback (most recent call last):
File "./zarafa_ws/frontend/request.py", line 355, in handle
File "./zarafa_ws/HandlerBase.py", line 91, in handleStream
File "./zarafa_ws/items.py", line 660, in processStream
File "./zarafa_ws/shapes.py", line 126, in serialize
File "./zarafa_ws/shapes.py", line 114, in _serialize_collection
File "./zarafa_ws/fielddefs.py", line 1457, in serialize
File "./zarafa_ws/Util.py", line 404, in flatentrylist_to_list
AssertionError
2016-08-20 07:57:46,320 16636:-8d2b940 <93ed1397-84cc-4cf4-a702-5630be162ed5> [CRITICAL] zarafa_ws.fronten
d.request Request: <?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:t="http://schemas.microsoft.co
m/exchange/services/2006/types">
<soap:Header>
<t:RequestServerVersion Version="Exchange2007_SP1"/>
</soap:Header>
<soap:Body>
<m:GetItem xmlns:m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:t="http://sche
mas.microsoft.com/exchange/services/2006/types">
<m:ItemShape>
<t:BaseShape>IdOnly</t:BaseShape>
<t:IncludeMimeContent>false</t:IncludeMimeContent>
<t:AdditionalProperties>
<t:FieldURI FieldURI="item:Subject"/>
<t:FieldURI FieldURI="itemateTimeReceived"/>
<t:FieldURI FieldURI="itemateTimeSent"/>
<t:FieldURI FieldURI="item:Size"/>
<t:FieldURI FieldURI="message:InternetMessageId"/>
<t:FieldURI FieldURI="message:IsRead"/>
<t:FieldURI FieldURI="item:IsDraft"/>
<t:FieldURI FieldURI="item:Importance"/>
<t:FieldURI FieldURI="item:HasAttachments"/>
<t:FieldURI FieldURI="message:References"/>
<t:FieldURI FieldURI="message:ReplyTo"/>
<t:FieldURI FieldURI="message:From"/>
<t:FieldURI FieldURI="message:Sender"/>
<t:FieldURI FieldURI="message:ToRecipients"/>
<t:FieldURI FieldURI="message:CcRecipients"/>
<t:FieldURI FieldURI="message:BccRecipients"/>
<t:FieldURI FieldURI="item:InternetMessageHeaders"/>
<t:ExtendedFieldURI PropertyTag="0xe17" PropertyType="Integer"/>
<t:ExtendedFieldURI PropertyTag="0x1090" PropertyType="Integer"/>
<t:ExtendedFieldURI PropertyTag="0x1095" PropertyType="Integer"/>
<t:ExtendedFieldURI PropertyTag="0x1081" PropertyType="Integer"/>
<t:ExtendedFieldURI PropertyName="MessageJunkFlag" PropertySetId="A7B529B5-4B75-47A7-A24F-20743D6C55CD" PropertyType="Boolean"/>
<t:ExtendedFieldURI PropertyName="MessageNotJunkFlag" PropertySetId="A7B529B5-4B75-47A7-A24F-20743D6C55CD" PropertyType="Boolean"/>
<t:ExtendedFieldURI PropertyName="MessageJunkRecordedFlag" PropertySetId="A7B529B5-4B75-47A7-A24F-20743D6C55CD" PropertyType="Boolean"/>
<t:ExtendedFieldURI PropertyName="MessageRedirectedFlag" PropertySetId="A7B529B5-4B75-47A7-A24F-20743D6C55CD" PropertyType="Boolean"/>
<t:FieldURI FieldURI="item:ItemClass"/>
</t:AdditionalProperties>
</m:ItemShape>
<m:ItemIds>
<t:ItemId Id="AAABMRg6HaP727BEToSGMTLtamobwpcBAAAAAAAYOh2j+9 uwRE6EhjEy7WpqG6t9AgAAAAAAAA=="/>
<t:ItemId Id="AAABMRg6HaP727BEToSGMTLtamobwpcBAAAAAAAYOh2j+9 uwRE6EhjEy7WpqG8OXAQAAAAAAAA=="/>
</m:ItemIds>
</m:GetItem>
</soap:Body>
</soap:Envelope>



Example xmlParseDoc error:

2016-08-20 07:57:46,324 16636:-8d2b940 <93ed1397-84cc-4cf4-a702-5630be162ed5> [ERROR ] zarafa_ws.xml.debug Failed to pretty print xml
Traceback (most recent call last):
File "./zarafa_ws/xml/debug.py", line 61, in prettify_xml
File "/usr/lib/python2.7/dist-packages/libxml2.py", line 1271, in parseDoc
if ret is None:raise parserError('xmlParseDoc() failed')
parserError: xmlParseDoc() failed
2016-08-20 07:57:46,328 16636:-8d2b940 <93ed1397-84cc-4cf4-a702-5630be162ed5> [CRITICAL] zarafa_ws.fronten
d.request Response: <?xml version='1.0'?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XM
LSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soap:Header><t:ServerVersionInfo MajorBuil
dNumber="628" MajorVersion="10" MinorBuildNumber="0" MinorVersion="0" xmlns:t="http://schemas.microsoft.co
m/exchange/services/2006/types" /></soap:Header><soap:Body><m:GetItemResponse xmlns:m="http://schemas.micr
osoft.com/exchange/services/2006/messages" xmlns:t="http://schemas.microsoft.com/exchange/services/2006/ty
pes"><m:ResponseMessages><m:GetItemResponseMessag e ResponseClass="Success"><m:ResponseCode>NoError</m:Resp
onseCode><m:Items><t:Message><t:ItemId ChangeKey="Oh2j+9uwRE6EhjEy7WpqG4DZAwA=" Id="AAABMRg6HaP727BEToSGMT
LtamobwpcBAAAAAAAYOh2j+9uwRE6EhjEy7WpqG6t9AgAAAAAA AA==" /><t:ItemClass>IPM.Note</t:ItemClass><t:Subject>So
uth Asia Birds Registration</t:Subject><tateTimeReceived>2011-01-24T19:18:44Z</tateTimeReceived><t:Siz
e>10383</t:Size><t:Importance>Low</t:Importance><t:IsDraft>false</t:IsDraft>

-snip-
2016-08-20 07:57:46,332 16636:-8d2b940 <93ed1397-84cc-4cf4-a702-5630be162ed5> [INFO ] zarafa_ws.frontend.app Returning response for operation GetItem with status: 500 INTERNAL SERVER ERROR to client: 192.168.1.33

Any ideas?
Regards, Chris