RE: Reg : RHEL 5.0 Installatio

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Weird, you shouldn't be getting any packet loss at all. I wonder if
there's
Some faulty network device? Try these tests:

1. Ping from yourself to yourself; ping localhost, and ping the proper
qualified domain name - do you get any drops then?

2. Ping from another host on the same subnet, do you get any drops then?

3. ping from a host on a different subnet.

(also, in future be weary of transmitting lots of information about your
servers to a mailing list, your info might be posted on the internet -
just be mindful of that).


-----Original Message-----
From: redhat-list-bounces@xxxxxxxxxx
[mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
Seshadhri
Sent: Sunday, 3 May 2009 10:25 p.m.
To: General Red Hat Linux discussion list
Subject: Re: Reg : RHEL 5.0 Installatio

Yes during ping, packets are dropped. It gives like the one below

[root@dbbld u02]# ping dbbld.domain.com
PING appsbld.pharmatrade.pharmatrade.com (132.1.1.126) 56(84) bytes of
data.
64 bytes from dbbld.domain.com (132.1.1.126): icmp_seq=2 ttl=64
time=0.122
ms
64 bytes from dbbld.domain.com (132.1.1.126): icmp_seq=3 ttl=64
time=0.090
ms
64 bytes from dbbld.domain.com (132.1.1.126): icmp_seq=4 ttl=64
time=0.099
ms
64 bytes from dbbld.domain.com (132.1.1.126): icmp_seq=5 ttl=64
time=0.091
ms
64 bytes from dbbld.domain.com (132.1.1.126): icmp_seq=6 ttl=64
time=0.095
ms

--- dbbld.domain.com ping statistics ---
6 packets transmitted, 5 received, 16% packet loss, time 5000ms
rtt min/avg/max/mdev = 0.090/0.099/0.122/0.014 ms

I have all host entries in place and servers registered in DNS

Here is the output of "sar -q"

[root@dbbld u02]# sar -q
Linux 2.6.18-53.el5PAE (dbbld)  05/03/2009

09:50:01 AM   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15
10:00:01 AM         0       189      0.12      0.08      0.06
10:10:01 AM         0       185      0.01      0.04      0.04
10:20:01 AM         0       183      0.09      0.05      0.02
10:30:01 AM         0       183      0.04      0.05      0.00
10:40:01 AM         0       185      0.05      0.06      0.00
Average:            0       185      0.06      0.06      0.02

10:46:40 AM       LINUX RESTART

10:54:21 AM       LINUX RESTART

11:00:01 AM   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15
11:10:01 AM         0       173      0.03      0.12      0.21
Average:            0       173      0.03      0.12      0.21

11:22:15 AM       LINUX RESTART

11:38:03 AM       LINUX RESTART

11:40:01 AM   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15
11:50:01 AM         0       189      0.61      0.72      0.53
Average:            0       189      0.61      0.72      0.53

11:59:06 AM       LINUX RESTART

12:00:02 PM   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15
12:10:01 PM         0       189      0.24      1.20      0.96
12:20:01 PM         0       188      0.09      0.22      0.52
12:30:01 PM         0       188      0.04      0.06      0.28
12:40:01 PM         0       195      3.19      1.54      0.83
12:50:01 PM         0       191      2.69      1.37      0.96
01:00:02 PM         0       192      0.15      0.73      0.82
Average:            0       190      1.07      0.85      0.73

01:04:33 PM       LINUX RESTART

01:10:01 PM   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15
01:20:01 PM         0       186      2.66      2.47      1.67
01:30:01 PM         0       176      2.58      2.64      2.12
Average:            0       181      2.62      2.56      1.90

01:55:25 PM       LINUX RESTART

02:00:01 PM   runq-sz  plist-sz   ldavg-1   ldavg-5  ldavg-15
02:10:01 PM         0       172      1.84      1.75      1.16
02:20:01 PM         0       171      1.84      1.84      1.47
Average:            0       172      1.84      1.79      1.31


Ram

On Sun, May 3, 2009 at 2:18 PM, Geofrey Rainey
<Geofrey.Rainey@xxxxxxxxxx>wrote:

> That logical volume for swap is pretty weird, no point in having that
> there I think, but not to worry for the moment, I don't think it would
> cause issues like you're experiencing.
>
> What's the output of "sar -q".
>
> Also, if you ping the server any other time does it always drop
packets?
>
> -----Original Message-----
> From: redhat-list-bounces@xxxxxxxxxx
> [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
> Seshadhri
> Sent: Sunday, 3 May 2009 10:13 p.m.
> To: General Red Hat Linux discussion list
> Subject: Re: Reg : RHEL 5.0 Installatio
>
> Here is the output for swapon -s
>
> [root@dbbld ~]# swapon -s
> Filename                                Type            Size    Used
> Priority
> /dev/mapper/VolGroup00-LogVol01         partition       950264  0
> -1
> /dev/sda5                               partition       9438148 0
> -2
>
>
> Ram
>
> On Sun, May 3, 2009 at 2:10 PM, Geofrey Rainey
> <Geofrey.Rainey@xxxxxxxxxx>wrote:
>
> > I wouldn't worry about that zombie. What about my earlier question
> about
> > The output of swapon -s?
> >
> >
> > -----Original Message-----
> > From: redhat-list-bounces@xxxxxxxxxx
> > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
> > Seshadhri
> > Sent: Sunday, 3 May 2009 10:03 p.m.
> > To: General Red Hat Linux discussion list
> > Subject: Re: Reg : RHEL 5.0 Installatio
> >
> > Hi,
> >
> >
> > I can see that there is a Zonbie
> >
> > [root@dbbld etc]# ps -ef | grep ifup-eth
> > root     14335  3476  1 14:02 ?        00:00:00 [ifup-eth] <defunct>
> > root     14362  6988  0 14:02 pts/2    00:00:00 grep ifup-eth
> >
> > what is this process. I am not able to kill this.
> >
> >
> > Ram.S
> >
> > On Sun, May 3, 2009 at 1:59 PM, Ramakrishnan Seshadhri <
> > ramakrishnan42@xxxxxxxxx> wrote:
> >
> > > Hi
> > >
> > > Here is the ifconfig report below
> > >
> > > [root@dbbld ~]# ifconfig
> > > bond0     Link encap:Ethernet  HWaddr 00:21:5E:2D:90:5E
> > >           inet addr:132.1.1.125  Bcast:132.1.255.255
> Mask:255.255.0.0
> > >           inet6 addr: fe80::221:5eff:fe2d:905e/64 Scope:Link
> > >           UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500
Metric:1
> > >           RX packets:1150 errors:0 dropped:0 overruns:0 frame:0
> > >           TX packets:961 errors:0 dropped:0 overruns:0 carrier:0
> > >           collisions:0 txqueuelen:0
> > >           RX bytes:93435 (91.2 KiB)  TX bytes:87481 (85.4 KiB)
> > >
> > > eth0      Link encap:Ethernet  HWaddr 00:21:5E:2D:90:5E
> > >           inet6 addr: fe80::221:5eff:fe2d:905e/64 Scope:Link
> > >           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
> > >           RX packets:1150 errors:0 dropped:0 overruns:0 frame:0
> > >           TX packets:961 errors:0 dropped:0 overruns:0 carrier:0
> > >           collisions:0 txqueuelen:1000
> > >           RX bytes:93435 (91.2 KiB)  TX bytes:87481 (85.4 KiB)
> > >           Interrupt:114 Memory:da000000-da012100
> > >
> > > eth1      Link encap:Ethernet  HWaddr 00:21:5E:2D:90:60
> > >           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
> > >           RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > >           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > >           collisions:0 txqueuelen:1000
> > >           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
> > >           Interrupt:82 Memory:d8000000-d8012100
> > >
> > > lo        Link encap:Local Loopback
> > >           inet addr:127.0.0.1  Mask:255.0.0.0
> > >           inet6 addr: ::1/128 Scope:Host
> > >           UP LOOPBACK RUNNING  MTU:16436  Metric:1
> > >           RX packets:2776 errors:0 dropped:0 overruns:0 frame:0
> > >           TX packets:2776 errors:0 dropped:0 overruns:0 carrier:0
> > >           collisions:0 txqueuelen:0
> > >           RX bytes:3321472 (3.1 MiB)  TX bytes:3321472 (3.1 MiB)
> > >
> > > the collision  field is zero. But the TX is bytes:87481. There are
> Two
> > NIC
> > > configured to the Virtual IP bond0. Is there a problem there.
> > > Is there a log while where I could check the errors.
> > >
> > > Ram
> > >
> > >
> > > On Sun, May 3, 2009 at 1:41 PM, Geofrey Rainey
> > <Geofrey.Rainey@xxxxxxxxxx>wrote:
> > >
> > >> 1. look in the output of ifconfig and you'll see a "collisions"
> field
> > >> which should have a value of 0.
> > >>
> > >> 2. look at the output of either "ethtool <interface>", or
mii-tool
> > >> <interface>, and you will see what the port speed is. This must
> match
> > >> the port speed of your switch (your network guys will tell you if
> the
> > >> switch is
> > >> 100Mb or 1000Mb etc).
> > >>
> > >> Look for output like this which says the interface is running at
> > >> 100Mb/s. This is bad if you're connected to a 1000Mb switch.
> > >>
> > >> Advertised auto-negotiation: Yes
> > >> Speed: 100Mb/s
> > >> Duplex: Full
> > >>
> > >> -----Original Message-----
> > >> From: redhat-list-bounces@xxxxxxxxxx
> > >> [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ramakrishnan
> > >> Seshadhri
> > >> Sent: Sunday, 3 May 2009 9:30 p.m.
> > >> To: General Red Hat Linux discussion list
> > >> Subject: Re: Reg : RHEL 5.0 Installatio
> > >>
> > >> can you please brief how to check that.
> > >>
> > >> Ram.
> > >>
> > >> On Sun, May 3, 2009 at 1:21 PM, Geofrey Rainey
> > >> <Geofrey.Rainey@xxxxxxxxxx>wrote:
> > >>
> > >> > Look in "ifconfig", are there any collisions on the interface?
> > >> >
> > >> > Also, perhaps the switch hasn't properly negotiated the speed
> with
> > >> > Your interface?
> > >> >
> > >> > -----Original Message-----
> > >> > From: redhat-list-bounces@xxxxxxxxxx
> > >> > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of
Ramakrishnan
> > >> > Seshadhri
> > >> > Sent: Sunday, 3 May 2009 9:18 p.m.
> > >> > To: General Red Hat Linux discussion list
> > >> > Subject: Re: Reg : RHEL 5.0 Installatio
> > >> >
> > >> > Actually the problem is here. Once I reboot the server the load
> is
> > >> > around
> > >> > 2.8 and I am not able to ping the server (All firewalls are
> turned
> > >> off).
> > >> > After sometime I am able to telnet or ping the server. While
> > pinging
> > >> it
> > >> > drops 50% of packets.
> > >> > both telnet and ssh services are enabled.
> > >> >
> > >> >
> > >> > Ram
> > >> >
> > >> > On Sun, May 3, 2009 at 1:06 PM, Geofrey Rainey
> > >> > <Geofrey.Rainey@xxxxxxxxxx>wrote:
> > >> >
> > >> > > Also, what about the outut of the "sar" command without any
> > >> arguments?
> > >> > >
> > >> > > -----Original Message-----
> > >> > > From: redhat-list-bounces@xxxxxxxxxx
> > >> > > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of
> Ramakrishnan
> > >> > > Seshadhri
> > >> > > Sent: Sunday, 3 May 2009 9:01 p.m.
> > >> > > To: General Red Hat Linux discussion list
> > >> > > Subject: Re: Reg : RHEL 5.0 Installatio
> > >> > >
> > >> > > Hi,
> > >> > >
> > >> > >
> > >> > > Thanks for the response : Here is my output of "sar -r"
command
> > >> > >
> > >> > > Linux 2.6.18-53.el5PAE (dbbld)  05/03/2009
> > >> > >
> > >> > > 09:50:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > >> > kbswpfree
> > >> > > kbswpused  %swpused  kbswpcad
> > >> > > 10:00:01 AM   7400868    910644     10.96    141164    590936
> > >> > > 10388412         0      0.00         0
> > >> > > 10:10:01 AM   7394136    917376     11.04    142056    597464
> > >> > > 10388412         0      0.00         0
> > >> > > 10:20:01 AM   7394756    916756     11.03    142260    597464
> > >> > > 10388412         0      0.00         0
> > >> > > 10:30:01 AM   7394632    916880     11.03    142420    597468
> > >> > > 10388412         0      0.00         0
> > >> > > 10:40:01 AM   7394012    917500     11.04    142668    597488
> > >> > > 10388412         0      0.00         0
> > >> > > Average:      7395681    915831     11.02    142114    596164
> > >> > > 10388412         0      0.00         0
> > >> > >
> > >> > > 10:46:40 AM       LINUX RESTART
> > >> > >
> > >> > > 10:54:21 AM       LINUX RESTART
> > >> > >
> > >> > > 11:00:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > >> > kbswpfree
> > >> > > kbswpused  %swpused  kbswpcad
> > >> > > 11:10:01 AM   7781624    529888      6.38     97864    300800
> > >> > > 10388412         0      0.00         0
> > >> > > Average:      7781624    529888      6.38     97864    300800
> > >> > > 10388412         0      0.00         0
> > >> > >
> > >> > > 11:22:15 AM       LINUX RESTART
> > >> > >
> > >> > > 11:38:03 AM       LINUX RESTART
> > >> > >
> > >> > > 11:40:01 AM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > >> > kbswpfree
> > >> > > kbswpused  %swpused  kbswpcad
> > >> > > 11:50:01 AM   7780860    530652      6.38     89332    301896
> > >> > > 10388412         0      0.00         0
> > >> > > Average:      7780860    530652      6.38     89332    301896
> > >> > > 10388412         0      0.00         0
> > >> > >
> > >> > > 11:59:06 AM       LINUX RESTART
> > >> > >
> > >> > > 12:00:02 PM kbmemfree kbmemused  %memused kbbuffers  kbcached
> > >> > kbswpfree
> > >> > > kbswpused  %swpused  kbswpcad
> > >> > > 12:10:01 PM   7728928    582584      7.01    135368    303512
> > >> > > 10388412         0      0.00         0
> > >> > > 12:20:01 PM   7729052    582460      7.01    135484    303516
> > >> > > 10388412         0      0.00         0
> > >> > > 12:30:01 PM   7728692    582820      7.01    135904    303884
> > >> > > 10388412         0      0.00         0
> > >> > > 12:40:01 PM    286120   8025392     96.56    121840   7634772
> > >> > > 10388412         0      0.00         0
> > >> > > 12:50:01 PM    289640   8021872     96.52     50696   7736596
> > >> > > 10388408         4      0.00         4
> > >> > > Average:      4752486   3559026     42.82    115858   3256456
> > >> > > 10388411         1      0.00         1
> > >> > >
> > >> > >
> > >> > > I cant see any swap usage.
> > >> > >
> > >> > > Ram
> > >> > >
> > >> > > On Sun, May 3, 2009 at 12:57 PM, Geofrey Rainey
> > >> > > <Geofrey.Rainey@xxxxxxxxxx>wrote:
> > >> > >
> > >> > > > Try the following:
> > >> > > >
> > >> > > > # sar -r (look at how much swap is being used)
> > >> > > >
> > >> > > > # sar (is the i/o wait column high?)
> > >> > > >
> > >> > > >
> > >> > > > -----Original Message-----
> > >> > > > From: redhat-list-bounces@xxxxxxxxxx
> > >> > > > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of
> > Ramakrishnan
> > >> > > > Seshadhri
> > >> > > > Sent: Sunday, 3 May 2009 7:41 p.m.
> > >> > > > To: General Red Hat Linux discussion list
> > >> > > > Subject: Reg : RHEL 5.0 Installatio
> > >> > > >
> > >> > > > Hi,
> > >> > > >
> > >> > > > I have installed RHEL 5  on one of the servers and once the
> > server
> > >> > > boots
> > >> > > > up
> > >> > > > the load average is constantly at 2.8 and server is slow.
> > >> > > >
> > >> > > > Server is IBM blade by make .
> > >> > > >
> > >> > > > 8 GB RAM
> > >> > > >
> > >> > > >
> > >> > > > top command does not show any CPR intensive tasks.
> > >> > > >
> > >> > > > please let me know how to find out what is occupying CPU
> > >> > > >
> > >> > > >
> > >> > > > Ram
> > >> > > > --
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