When multiple threads pound on extractingUpdateRequestHandler using multipart form posting over an extended period of time, I'm seeing a huge number of sockets piling up in the following state:
tcp6 0 0 127.0.0.1:8983 127.0.0.1:44058 TIME_WAIT
Despite the fact that the client can only have 10 sockets open at a time, huge numbers of sockets accumulate that are in this state:
root@duck6:~# netstat -an | fgrep :8983 | wc
28223 169338 2257840
The sheer number of sockets lying around seems to eventually cause commons-fileupload to fail (silently - another bug) in creating a temporary file to contain the content data. This causes Solr to erroneously return a 400 code with "missing_content_data" or some such to the indexing poster.