Hi, I'm encountering this error randomly when running a distributed facet. (i.e. I'm sending the exact same request, yet this does not reproduce consistently) I have about 180 shards that are being queried. It seems that when Solr distributes the request to the shards one , or perhaps more, shards return an XML reply instead of Javabin.
I added some debug output to JavaBinCode.unmarshal (as done in the debugging.patch of SOLR-3258) to check whether the XML reply holds an error or not, and I noticed that the XML actually holds the response from one of the shards. I'm using the patch provided in SOLR-2894 on top of trunk 1404975. Has anyone encountered such an issue? Any ideas? Thanks, Shahar.