Specifications

A-7
Cisco TV CDS 2.5 ISA Software Configuration Guide
OL-24788-01
Appendix A Troubleshooting
General Information and Issues
• 8—Stream has been destroyed (cnDestroyed).
Protocoltiming Warning Messages
Table A-1 describes some of the warning messages that might be seen in the Protocoltiming log.
ISA Log Files
The Linux user isa is the owner of the application files in an ISA environment. Logging in as isa starts
the database. To change from the root login use the su – isa command.
The following log files provide information on content ingest and mirroring:
• /arroyo/log/ContentStoreMaster.log
• /arroyo/log/ContentStore.log
Table A-1 Protocoltiming Warning Messages
Warning Message Description
WARNING: Fill transmit
bus hold offs
System bus is overloaded or network transmissions are not occurring fast enough and
transmission of data is being delayed. The counts following these numbers may be low, this is not
a concern because the delay is only 2 microseconds (ms). However, if the counts are high, this
can cause stream data delivery problems.
WARNING: Fill Data
Wait
Vault or Caching Node is unable to deliver data to a waiting Caching Node or Streamer because
the data is not yet available. If the numbers are low, this is not a concern because the delay is only
2 ms. If the counts are high, this can cause stream data delivery problems.
WARNING Data Low Data being streamed has less than 100 ms buffered ahead of the current stream point. Normally
there should be a 2-second elasticity buffer for data being transmitted, except for a short interval
when the stream first starts and the data is still “bursting” to fill the elasticity buffer. There are
no problems as a result of this warning, but it is a precursor to the Fill Data Wait warning.
WAR NI NG : D isk
Refetches
Warning does not indicate any problems with streaming content, just that the disk bandwidth was
not being used as efficiently as possible.
WARNING: No capacity
5 percent
Server was not accepting any new requests, which were sent to it during five percent of the
preceding ten-second sample period, because it was out of capacity. Other statistics in the
protocoltiming log need to be examined to determine why the server determined it was out of
capacity. If Caching Nodes or Streamers are unable to find an alternate server to provide the data
they need, a stream failure may occur.
WARNING: Cannot
stripe disk writes
Indicates one of the following two conditions:
• Some disk drives are completely full and data can no longer be written to them.
• The disk system is under a full-bandwidth load such that some drives are fully committed to
reading stream data and are never getting any time to write data to the drive.
The data storage pattern is not efficient when this happens because the data can no longer be
spread equally across all the drives. Check other load statistics to determine why the disk system
cannot stripe to some drives is useful in determining why these warnings are occurring.
WARNING: Mirror
Recovery degraded -
some remote vaults (0:1)
are inaccessible
The configured mirroring has not occurred because 1 or more required Vaults are down, or a
partner Vault is up but configured to be in a different Vault Group.