xdcr_trace logs are emply even after enabling trace logs

Executed command on each node:

"wget O --post-data='ale:set_loglevel(xdcr_trace, debug).' http://Administrator:password@127.0.0.1:8091/diag/eval "

http://qa.hq.northscale.net/job/centos_x64--01_01--uniXDCR_biXDCR-P0/12/consoleFull

---------------------------- ENABLE XDCR_TRACE DEBUG LOGS -----------------------
+ python scripts/ssh.py i centos_x6401_01uniXDCR_biXDCR-P0.ini wget -O --post-data='ale:set_loglevel(xdcr_trace, debug).' http://Administrator:password@127.0.0.1:8091/diag/eval
10.1.3.96
ok
-2014-06-16 04:48:11- http://Administrator:*password*@127.0.0.1:8091/diag/eval
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2 [text/plain]
Saving to: `STDOUT'

0K 100% 178K=0s

2014-06-16 04:48:11 (178 KB/s) - `-' saved [2/2]

10.1.3.94
ok
-2014-06-16 04:48:11- http://Administrator:*password*@127.0.0.1:8091/diag/eval
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2 [text/plain]
Saving to: `STDOUT'

0K 100% 115K=0s

2014-06-16 04:48:11 (115 KB/s) - `-' saved [2/2]

10.1.3.97
ok
-2014-06-16 04:48:11- http://Administrator:*password*@127.0.0.1:8091/diag/eval
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2 [text/plain]
Saving to: `STDOUT'

0K 100% 178K=0s

2014-06-16 04:48:11 (178 KB/s) - `-' saved [2/2]

10.1.2.12
ok
-2014-06-16 04:48:11- http://Administrator:*password*@127.0.0.1:8091/diag/eval
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2 [text/plain]
Saving to: `STDOUT'

0K 100% 195K=0s

2014-06-16 04:48:11 (195 KB/s) - `-' saved [2/2]

10.1.3.93
ok
-2014-06-16 04:48:11- http://Administrator:*password*@127.0.0.1:8091/diag/eval
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2 [text/plain]
Saving to: `STDOUT'

0K 100% 195K=0s

2014-06-16 04:48:11 (195 KB/s) - `-' saved [2/2]

10.1.3.95
ok
-2014-06-16 04:48:11- http://Administrator:*password*@127.0.0.1:8091/diag/eval
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2 [text/plain]
Saving to: `STDOUT'

0K 100% 178K=0s

2014-06-16 04:48:11 (178 KB/s) - `-' saved [2/2]

10.1.3.99
ok
-2014-06-16 04:48:11- http://Administrator:*password*@127.0.0.1:8091/diag/eval
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 401 Unauthorized
Connecting to 127.0.0.1:8091... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2 [text/plain]
Saving to: `STDOUT'

0K 100% 195K=0s

2014-06-16 04:48:11 (195 KB/s) - `-' saved [2/2]

But trace logs are not present on the nodes: