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[xmlblaster] server sometimes stops matching XPath subscription properly
I'm having some really odd xmlBlaster server behavior, and I'm hoping you
might have some ideas even though I don't have that much information to
I put my projects own metadata into the xmlBlaster key before publishing.
Clients in our system subscribe either to a topic or using XPath (matching
our metadata in the key). What we started seeing is that some times XPath
subscriptions and queries stop working. Clients subscribed to the
corresponding topic still get the messages, but those subscribed to the
XPath don't. Stranger still is that I can change the XPath string and get
it to match. I give you an example below. These issues happen
intermittently, but now we have gotten into this state more often than not.
I am using 0.91. It happens on servers running on both WinXP and linux.
Here's an example. The xmlBlaster key that gets published looks something
like the following:
<key oid='ComponentControl' contentMime='text/xml'>
If I set the XPath string to "//product/System/Component/Control", the
server says it doesn't match, and client doesn't receive the message. On
the other hand if I were to set the XPath string to "//product" it does
match and deliver the message.
Please let me know if you have any ideas of what can be going on. If you
need any more information let me know.