[syslog-ng]Logs lost in the FIFO

Hi All, I have the confusion regarding logs which are not read by the Destination programs. In case of FIFO, if the destination program which is reading the logs from syslog-ng is slow and unable to sysnchronise with the syslog-ng and there is also a limit for the fifo buffer(amount of data it holds) then where does thoses logs goes , are those logs recoverable. In other case of FIFO, if there is no destination program reading the logs from the FIFO what happens to the logs which are collected by the syslog-ng are those logs droped. How syslog-ng handles all these situations. Please help me out. Thank you all in advance, Regards, torpedo