network read failed (42)

[a_such87]

Wondering if anyone has a solution to this problem.

This is a relativly new enviroment with a VM policy and SAN transport.

Seems to be happening mostly on monthly fulls aposed to daily incrimentals.

05/08/2016 04:41:31 - Info bpbrm (pid=47573) VMHOST1 is the host to backup data from
05/08/2016 04:41:31 - Info bpbrm (pid=47573) reading file list for client
05/08/2016 04:41:31 - Info bpbrm (pid=47573) accelerator enabled
05/08/2016 04:41:33 - Info bpbrm (pid=47573) starting bpbkar on client
05/08/2016 04:41:33 - Info bpbkar (pid=47854) Backup started
05/08/2016 04:41:33 - Info bpbrm (pid=47573) bptm pid: 47856
05/08/2016 04:41:33 - Info bptm (pid=47856) start
05/08/2016 04:41:33 - connecting
05/08/2016 04:41:33 - connected; connect time: 0:00:00
05/08/2016 04:41:35 - Info bptm (pid=47856) using 1048576 data buffer size
05/08/2016 04:41:35 - Info bptm (pid=47856) using 256 data buffers
05/08/2016 04:41:36 - Info bptm (pid=47856) start backup
05/08/2016 04:41:37 - begin writing
05/08/2016 04:54:03 - Info bpbkar (pid=47854) INF - Transport Type =  san
05/08/2016 04:54:27 - Info bpbkar (pid=47854) accelerator sent 513038336 bytes out of 12760799232 bytes to server, optimization 96.0%
05/08/2016 04:54:27 - Info bptm (pid=47856) waited for full buffer 95 times, delayed 50077 times
05/08/2016 04:54:28 - Info bpbkar (pid=47854) bpbkar waited 82 times for empty buffer, delayed 3354 times
05/08/2016 05:02:51 - Error bptm (pid=47856) get_string() failed, Broken pipe (32), premature end of file encountered
05/08/2016 05:02:51 - Info bptm (pid=47856) EXITING with status 42 <----------
05/08/2016 05:02:55 - Info MEDIASERVER1 (pid=47856) StorageServer=PureDisk:MEDIASERVER1; Report=PDDO Stats for (MEDIASERVER1): scanned: 12466159 KB, CR sent: 17826 KB, CR sent over FC: 0 KB, dedup: 99.9%, cache disabled
05/08/2016 05:13:06 - Info bpbkar (pid=0) done
05/08/2016 05:13:06 - Info bpbkar (pid=0) done. status: 42: network read failed
05/08/2016 05:13:06 - end writing; write time: 0:31:29
network read failed  (42)
 

[Marianne]

Is media server also the backup host?

You will need logs to see what happened between these 2 timestamps as backup was actually completed at the time of the 1st entry over here:

05/08/2016 04:54:28 - Info bpbkar (pid=47854) bpbkar waited 82 times for empty buffer, delayed 3354 times
05/08/2016 05:02:51 - Error bptm (pid=47856) get_string() failed, Broken pipe (32), premature end of file encountered

Logs needed (preferrably level 3):

backup host: bpbkar

media server: bptm and bptm

[Marianne]

Have a look at this TN: http://www.veritas.com/docs/000100458 

Performance issues have been observed on some Linux servers (including NetBackup Appliances) acting as VMware backup hosts when Accelerator is enabled on VMware backups.

Error Message

Intermittent failures with Status Code 42 (network read failed) reported have been seen.

[a_such87]

Hi Marianne,

Thanks for responding, im unable to upload these due to the sensetivity of my employer as it is roughly 1000 lines littered with server names/addresses.

Are you looking for a particular entry in these that i can relay back to you?