10-18-2014
Quote:
Originally Posted by
jim mcnamara
This may sound obvious, but consider traceroute. A 20+ second delay almost surely indicates a grossly overloaded system, somewhere in the path from A to B. You cannot do much about it until you locate it. Ignore my suggestion if you are routing over lots of DSL lines, in which case you are stuck.
We had remote printers on the other side of DSL lines from their print servers. Printing was painfully slow. Created local remote print servers, the problem went away.
hi jim, thanks. yes i have requested traceroute restriction to be lifted so we can troubleshoot this problem. I have no say over network security. the productions VMs are running in a cloud platform hence I don't think there are DSL lines involved.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
I'm a DBA so no abuse please! I've for 5 Oracle Forms processes that are spinning and am trying to find out if they're doing anything:
Running HPUX 11.11
CPU TTY PID USERNAME PRI NI SIZE RES STATE TIME %WCPU %CPU COMMAND
9 ? 2735 oracle 241 20 24228K 16668K run 2607:29 84.92... (2 Replies)
Discussion started by: fraze
2 Replies
2. UNIX for Advanced & Expert Users
Hi,
We keep getting hanging Oracle process for our ETL. The dba's asked me to do o truss. All I see is pages and pages of the following,:cool:
pollsys(0xFFFFFFFF7FFF38C8, 1, 0xFFFFFFFF7FFF3800, 0x00000000) = 0
pollsys(0xFFFFFFFF7FFF38C8, 1, 0xFFFFFFFF7FFF3800, 0x00000000) = 0... (0 Replies)
Discussion started by: happyadm
0 Replies
3. Shell Programming and Scripting
Hi all,
while trying to debug and figure out why a lofiadm command was not working on my script, i came across a cmd called "truss"
all i know about it is that it executes the specified command and produces a trace of the system calls it performs, the signals it receives, and the machine faults... (5 Replies)
Discussion started by: wrapster
5 Replies
4. Shell Programming and Scripting
Hi
I have to get redirect the truss ouput to file.
I am doing truss -p 12121 >> output.txt
But it still displays on the screen adn output.txt is empty
Can some help how to do this?
Thanks in advance
Ammu (1 Reply)
Discussion started by: ammu
1 Replies
5. Shell Programming and Scripting
i have to gather some info about a process and redirect it to a1.txt file. For this i m using truss command
truss -po a1.txt $PID_Detail
where $PID_Detail= 1482944 3362976
--------------------------------------------------------------------------
Below the script:
#!/bin/ksh
for i... (6 Replies)
Discussion started by: ali560045
6 Replies
6. AIX
On my VIo I see the following for my disks:
$ lspath | grep hdisk6
Enabled hdisk6 fscsi0 200600a0b82193f7,4000000000000
Enabled hdisk6 fscsi0 200700a0b82193f7,4000000000000
Enabled hdisk6 fscsi2 200600a0b82193f8,4000000000000
Failed hdisk6 fscsi2 200700a0b82193f8,4000000000000
$ lspath |... (8 Replies)
Discussion started by: petervg
8 Replies
7. AIX
Hello,
I'm using AIX 5.3.12.5 and trying to understand truss output.
I'm running a job with real time of 16 minutes but only 4 minutes of CPU time. I'm trying to understand what the process is doing.
I'm getting a lot of
kread,
kpread,
kwrite,
kpwrite...
localhost:~ x$ grep... (1 Reply)
Discussion started by: Kovacs
1 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I want to trace a background java program which runs in infinite loop. I have used truss command for this.
But the program terminated after some hours with below truss output:
Received signal #1, SIGHUP, in lwp_cond_wait()
/1: siginfo: SIG#0
Please let me know what... (0 Replies)
Discussion started by: Hara Prasad
0 Replies
9. UNIX for Advanced & Expert Users
Hi,
I want to trace a background java program which runs in infinite loop. I have used truss command for this.
But the program terminated after some hours with below truss output:
Received signal #1, SIGHUP, in lwp_cond_wait()
/1: siginfo: SIG#0
Please let me know what... (5 Replies)
Discussion started by: Hara Prasad
5 Replies
10. UNIX for Advanced & Expert Users
Hi,
I am trying to set ulimit for soft stack unlimited, but this is not taking effect, after tracing the ulimit -a unlimited command, the below output was generated, which i am unable to comprehend. Could any one help me with this?
prcbap1-r10prod: truss -d ulimit -s unlimited
Tue Dec 30... (2 Replies)
Discussion started by: NasirAbbasi
2 Replies
LEARN ABOUT DEBIAN
pppoe-sniff
PPPOE-SNIFF(8) System Manager's Manual PPPOE-SNIFF(8)
NAME
pppoe-sniff - examine network for non-standard PPPoE frames
SYNOPSIS
pppoe-sniff [options]
DESCRIPTION
pppoe-sniff listens for likely-looking PPPoE PADR and session frames and deduces extra options required for pppoe(8) to work.
Some DSL providers seem to use non-standard frame types for PPPoE frames, and/or require a certain value in the Service-Name field. It is
often easier to sniff those values from a machine which can successfully connect rather than try to pry them out of the DSL provider.
To use pppoe-sniff, you need two computers, a DSL modem and an Ethernet hub (not an Ethernet switch.)
If the DSL modem normally connects directly to your computer's Ethernet card, connect it to the "uplink" port on the Ethernet hub. Plug
two computers into normal ports on the hub. On one computer, run whatever software the DSL provider gave you on whatever operating system
the DSL provider supports. On the other computer, run Linux and log in as root.
On the Linux machine, put the Ethernet interface into promiscuous mode and start pppoe-sniff. If the ethernet interface is eth0, for exam-
ple, type these commands:
ifconfig eth0 promisc
pppoe-sniff -I eth0
On the other machine, start your DSL connection as usual. After a short time, pppoe-sniff should print recommendations for the value of
PPPOE_EXTRA. Set this value in /etc/ppp/pppoe.conf. If pppoe-sniff indicates that something special is required in PPPOE_EXTRA, please e-
mail this to pppoe@roaringpenguin.com along with the name of your ISP and the manufacturer and model number of your DSL modem. This infor-
mation will be collated and provided on the PPPoE web page for users who do not have two computers.
After pppoe-sniff finishes (or you stop it if it seems hung), remember to turn off promiscuous mode:
ifconfig eth0 -promisc
OPTIONS
-I interface
The -I option specifies the Ethernet interface to use. Under Linux, it is typically eth0 or eth1. The interface should be "up" and
in promiscuous mode before you start pppoe-sniff.
-V The -V option causes pppoe-sniff to print its version number and exit.
BUGS
pppoe-sniff only works on Linux.
AUTHORS
pppoe-sniff was written by David F. Skoll <dfs@roaringpenguin.com>.
The pppoe home page is http://www.roaringpenguin.com/pppoe/.
SEE ALSO
pppd(8), pppoe(8), pppoe-sniff(8), pppoe-relay(8), /usr/share/doc/pppoe/README.Debian.gz
4th Berkeley Distribution 3 July 2000 PPPOE-SNIFF(8)