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apache/modules/cluster
Jim Jagielski 938554adf4 Merge r1902117, r1902130, r1902132, r1902133 from trunk:
*) mod_heartmonitor: Allow "HeartbeatMaxServers 0"
   to use file based storage instead of slotmem.
   Needed after setting HeartbeatMaxServers default
   to the documented value 10 in 2.4.54.
   [Jérôme Billiras]


Fix numeric check for HeartbeatMaxServers.


*) mod_heartmonitor: Document interaction between
   HeartbeatStorage and HeartbeatMaxServers.


Fix new typo in docs...

Submitted by: rjung
Reviewed by: rjung, rpluem, jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1903619 13f79535-47bb-0310-9956-ffa450edef68
2022-08-21 20:29:06 +00:00
..
2012-01-22 18:34:56 +00:00
2016-03-23 03:53:49 +00:00
2009-05-15 17:38:28 +00:00
2009-05-15 17:38:28 +00:00
2016-08-25 12:48:18 +00:00

mod_heartmonitor

Collects the Apache Connection status data over multicast.

Example Configuration:
  # First parameter is the interface to listen on
  HeartbeatListen 239.0.0.1:27999
  # Absolute path, or relative path to ServerRoot
  HeartbeatStorage logs/hb.dat

Dependencies:
  Due to a bug in APR's apr_socket_recvfrom, version 1.2.12 or newer must be
  used:
    <http://svn.apache.org/viewvc?view=rev&revision=467600>

Consuming:
  This module atomically writes to the configured path, a list of servers, 
  along with metadata about them.
  
  Included data about each server:
    - IP Address
    - Busy Slots
    - Open Slots
    - Last Seen

  Every 5 seconds, this file will be updated with the current status of the 
  cluster.