SNMP Alarms
239
Media Flow Controller Administrator’s Guide
Configuring and Using Media Flow Controller Logs and Alarms
Disk I/O High
(disk-io-high)
Disk I/O per second has risen above 5 MB. Indicates
that more content is served from disks.
Check if the amount of hot/popular
content is more than the available RAM
size. If the RAM sizing is inadequate,
consider increase the RAM in the system.
Memory Usage High
(memusage-high)
Memory usage has risen above 90%
Check if a single process is hogging the
system memory. If so, restart the process.
Network Usage High
(netusage-high)
Network utilization has risen too high
Check if Media Flow Controller is
constantly fetching content from origin
server. If so, verify the cache-ability
parameters on the origin server (such as
Cache-Control, Expiry, Last Modified
Date).
Check if Media Flow Controller is trying to
upload access logs to an unavailable
server.
Cache Resources Traps
Bandwidth Limit
(total_byte_rate)
Configured bandwidth limit has crossed on this server
Configure traffic redirection thresholds in
the external router/load balancer to
reduce the number of requests redirected
to the Media Flow Controller
Cache Bandwidth
(cache_byte_rate)
Current Cache bandwidth usage is too high
Configure traffic redirection thresholds in
the external router/load balancer to
reduce the number of requests redirected
to the Media Flow Controller
Origin Bandwidth
(origin_byte_rate)
Current Origin bandwidth usage is too high
Check if disk cache and RAM cache are
properly utilized by monitoring the
dashboard. Media Flow Controller may
be serving lots of long-tail content or the
content cannot be accommodated in the
RAM/disk cache. Check if the available
disk/RAM cache sizing is adequate for
the traffic load.
Disk Bandwidth
(disk_byte_rate)
Current Disk BW Usage is too high
Check if the amount of hot/popular
content is more than the available RAM
size. If the RAM sizing is inadequate,
consider increase the RAM in the system.
Averaged Cache
Bandwidth
(avg_cache_byte_rat
e)
Cache Average bandwidth usage, since the system
uptime, is too high
Configure traffic redirection thresholds in
the external router/load balancer to
reduce the number of requests redirected
to the Media Flow Controller.
Table 19
SNMP Alarms, Possible Causes, and Recommended Actions (Continued)
Event Name
(MIB/ stat Name)
Cause
Action
Summary of Contents for MEDIA FLOW CONTROLLER 2.0.4 -
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