Then send us a detailed description of the issue accompanied with the thread dumps and full server (or agent) logs covering the issue. Unless it is undesirable for some reason, the preferred way is to file an issue into our issue tracker . Please include all the relevant details of investigation, including the CPU/IO load information, what specifically is slow and what is not, etc.
For large amounts of data please use our FTP.
Server Thread Dump
It is recommended that you take a thread dump of the TeamCity server from the Web UI (if the hanging is local and you can still open the TeamCity Administration pages): go to the Administration | Server Administration | Diagnostics page and click the View server thread dump link to open the thread dump in a new browser window or Save Thread Dump button to save it to the
<TeamCity home>/logs directory (where you can later download the files from "Server Logs").
If the web UI is not responsive, try the direct URL using the actual URL of your TeamCity server.