Jerry-Fix

$ strace -t  ping baidu.com
21:08:23 execve("/bin/ping", ["ping", "baidu.com"], [/* 29 vars */]) = 0
21:08:23 brk(0)                         = 0x7f64d70e7000
21:08:23 fcntl(0, F_GETFD)              = 0
21:08:23 fcntl(1, F_GETFD)              = 0
21:08:23 fcntl(2, F_GETFD)              = 0
21:08:23 access("/etc/suid-debug", F_OK) = -1 ENOENT (No such file or directory)
21:08:23 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f64d6e78000
21:08:23 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
21:08:23 open("/etc/ld.so.cache", O_RDONLY) = 3

Jerry-Fix

while true; do  echo "---- $(date +'%H:%M:%S')" ;R1=$(ethtool  -S em1 | grep rx_dis | cut -d":" -f 2) ;sleep 1;R2=$(ethtool  -S em1 | grep rx_dis| cut -d ":" -f 2); R=`expr $R2 - $R1`; echo $R  ; done;

1400Byte:

---- 23:11:30
3186
---- 23:11:31
0
---- 23:11:32
0

Jerry-Fix

$ cat abrt.log 
executable:     /mnt/runtime/usr/bin/python
hashmarkername: anaconda
kernel:         2.6.32-220.el6.x86_64
product:        Red Hat Enterprise Linux
reason:         KeyError: '/dev/sda'
time:           Tue 06 May 2014 10:42:15 AM CST
version:        6.2

anaconda-tb-JAZH2E: Text file, 213992 bytes

Jerry-Fix

[jaseywang@unode-test1 jetty]$ java -jar start.jar  --list-classpath

Jetty Server Classpath:
-----------------------
Version Information on 35 entries in the classpath.
Note: order presented here is how they would appear on the classpath.
      changes to the --module=name command line options will be reflected here.
 0:                    (dir) | ${jetty.home}/resources
 1:                    3.1.0 | ${jetty.home}/lib/servlet-api-3.1.jar
 2:                 3.1.0.M0 | ${jetty.home}/lib/jetty-schemas-3.1.jar

Jerry-Fix

Apr 21 16:02:42 dp23 kernel: [   21.994395] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994398] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994401] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994403] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994406] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994409] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994411] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994414] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994416] bonding: bond0: doing slave updates when interface is down.
Apr 21 16:02:42 dp23 kernel: [   21.994420] bonding: bond0: enslaving eth0 as an active 

Jerry-Fix

Apr 22 11:33:24 umid2 kernel: [42351054.583918] java: page allocation failure: order:4, mode:0x4020
Apr 22 11:33:24 umid2 kernel: [42351054.583926] Pid: 28567, comm: java Tainted: G        WC   3.2.0-29-generic #46-Ubuntu
Apr 22 11:33:24 umid2 kernel: [42351054.583930] Call Trace:
Apr 22 11:33:24 umid2 kernel: [42351054.583933]  <IRQ>  [<ffffffff8111c966>] warn_alloc_failed+0xf6/0x150
Apr 22 11:33:24 umid2 kernel: [42351054.583953]  [<ffffffff8112a081>] ? wakeup_kswapd+0x101/0x160
Apr 22 11:33:24 umid2 kernel: [42351054.583960]  [<ffffffff811207cb>] __alloc_pages_nodemask+0x64b/0x820
Apr 22 11:33:24 umid2 kernel: [42351054.583969]  [<ffffffff81645115>] kmalloc_large_node+0x57/0x85
Apr 22 11:33:24 umid2 kernel: [42351054.583979]  [<ffffffff811657a5>] __kmalloc_node_track_caller+0x195/0x1e0
Apr 22 11:33:24 umid2 kernel: [42351054.583986]  [<ffffffff810d8949>] ? handle_irq_event_percpu+0xa9/0x220
Apr 22 11:33:24 umid2 kernel: [42351054.583995]  [<ffffffff81532c2b>] ? __alloc_skb+0x4b/0x240

Jerry-Fix

# yum install ifenslave iputils
# apt-get install ifenslave

# cat /etc/modprobe.d/bonding.conf 
alias bond0 bonding
options bonding mode=6 miimon=100 downdelay=200 updelay=200

Ubuntu
# cat /etc/network/interfaces
auto eth0

Jerry-Fix

RH & CentOS

1. mv /etc/modprobe.d/ipv6.conf  /var/tmp

2. cat  /etc/modprobe.d/bonding.conf

alias bond0 bonding

options bond0 mode=0 miimon=100 downdelay=200 updelay=200

Jerry-Fix

1. 7004_A
开启特性
feature vpc
feature lacp
no ip domain-lookup

建立 VRF 与 peer-keepalive，将建立的 peer-keepalive 成员端口加入到 VRF 中，与 7004 的路由表隔离
interface mgmt0
vrf member management
ip address 10.1.1.1/24

Jerry-Fix

# iozone -Rb output.xls -r 4K -s 2G
        Iozone: Performance Test of File I/O
                Version $Revision: 3.408 $
                Compiled for 64 bit mode.
                Build: linux 

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,