Hi Krishna, Usually, people use a service discovery tool to do this. Some other people use a local service to cache the check response and serve it to all haproxy servers.
Baptiste On Wed, Jun 17, 2015 at 11:38 AM, Krishna Kumar (Engineering) <krishna...@flipkart.com> wrote: > On Tue, Jun 16, 2015 at 4:29 PM, Krishna Kumar (Engineering) > <krishna...@flipkart.com> wrote: > > I was referring to HAProxy as the LB here. If there is any means to do this, > kindly let me know. > > Thanks, > - Krishna Kumar > > > >> Hi list, >> >> Is there any way to log, or report, or notify, or identify any backend >> that is not responding, without using explicit health-checks? The >> reason for this is that we are planning a big deployment of LB/servers, >> something along the lines of: >> >> LB1, LB2, LB100 or more >> ^ >> | >> v >> Thousands of servers as backends >> >> where many of the LB's could share the same backend. Doing a health- >> check from many LB's to the same servers is a possible load issue on >> the servers. Is there any other way, based on response timeout, or >> something else, to determine which of the backends are not responding, >> and be able to retrieve that information? >> >> Thanks, >> - Krishna Kumar > > > > ------------------------------------------------------------------------------------------------------------------------------------------ > > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are addressed. > If you have received this email in error please notify the system manager. > This message contains confidential information and is intended only for the > individual named. If you are not the named addressee you should not > disseminate, distribute or copy this e-mail. Please notify the sender > immediately by e-mail if you have received this e-mail by mistake and delete > this e-mail from your system. If you are not the intended recipient you are > notified that disclosing, copying, distributing or taking any action in > reliance on the contents of this information is strictly prohibited. > Although Flipkart has taken reasonable precautions to ensure no viruses are > present in this email, the company cannot accept responsibility for any loss > or damage arising from the use of this email or attachments
