In HTTP connection pooling, What happened to write_buffer in case receiver gets time out -

most of use httpclient , connection pooling connection gets reused multiple client thread.

now if 1 client gets read-timeout, releases connection pool may used other threads.

but curious know happens @ server side. server still processing request , may try write data write_buffer. since connection not closed, how write_buffer gets cleared before other request comes in using same tcp connection.

1. what happens server worker thread , write_buffer when reader gets timeout.
2. does reader(httpclient) interrupt or send ack server when gets timeout.