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| awk '/org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace/{printf "%s, KBps: %d\n", $0, $10/($NF/10**9)/1024}' ${datanode_log} |
wenjianhn
/ set_static_ip.sh
Last active
August 29, 2015 14:14
— forked from tumf/gist:1354282
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| cat <<EOF > /etc/sysconfig/network-scripts/ifcfg-$1 | |
| DEVICE=$1 | |
| BOOTPROTO=static | |
| NETMASK=255.255.255.0 | |
| IPADDR=$2 | |
| ONBOOT=yes | |
| EOF |
wenjianhn
/ test_socket_prio_and_tos.c
Created
January 29, 2015 03:30
Test if setsockopt(SO_PRIORITY) sets the IP type-of-service (TOS) field or not.
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| #include <assert.h> | |
| #include <netinet/ip.h> | |
| #include <stdio.h> | |
| #include <sys/socket.h> | |
| #include <sys/types.h> | |
| void test_setsockopt() | |
| { | |
| int priority = 6; |
wenjianhn
/ test_setsockopt.c
Created
January 29, 2015 03:01
Test setsockopt with SO_PRIORITY and IP_TOS. It shows that order matters.
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| #include <assert.h> | |
| #include <netinet/ip.h> | |
| #include <stdio.h> | |
| #include <sys/socket.h> | |
| #include <sys/types.h> | |
| void test_setsockopt(int priority_first) | |
| { | |
| int priority = 6; |
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| #! /usr/bin/env stap | |
| probe syscall.accept { | |
| if (execname() != "ceph-osd") next; | |
| printf("pid: %d tid: %d. accept(%s)\n", pid(), tid(), argstr) | |
| } | |
| probe syscall.accept.return { | |
| if (execname() != "ceph-osd") next; | |
| printf("pid: %d tid: %d. accept returns fd: %s\n", pid(), tid(), retstr) |
wenjianhn
/ trace_ceph_osd_skb_tcp_out.stp
Created
January 8, 2015 08:52
trace ceph osd skb in kernel.function("tcp_transmit_skb")
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| #! /usr/bin/env stap | |
| probe begin { | |
| printf("Started...\n") | |
| } | |
| probe kernel.function("tcp_transmit_skb") { | |
| if (execname() == "ceph-osd") { | |
| printf("%s(pid: %d, tid: %d)\n", execname(), pid(), tid()); | |
| printf("priority: %ld %15s:%-5d ---> %s:%d\n\n", |
wenjianhn
/ build_wireshark
Created
December 30, 2014 02:23
Build wireshark-1.99.1 on Fedora to support Ceph Protocol
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| sudo yum groupinstall "Development Tools" | |
| sudo yum install qt-devel gtk2-devel bison gcc-c++ gtk+ gtk3-devel | |
| wget https://1.as.dl.wireshark.org/src/wireshark-1.99.1.tar.bz2 | |
| tar xjf wireshark-1.99.1.tar.bz2 | |
| cd wireshark-1.99.1 | |
| ./configure | |
| make -j$(lscpu | awk '/^CPU\(s/ {print $2}') |
wenjianhn
/ create_testr_exclude_ut_regex.py
Created
September 15, 2014 08:38
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| exclude_plugins = ['bigswitch', 'brocade', 'cisco', 'embrane', 'hyperv', | |
| 'ibm', 'metaplugin', 'linuxbridge', 'midonet', 'mlnx', 'nec', | |
| 'nuage', 'oneconvergence', 'plumgrid', 'ryu', 'vmware'] | |
| print "|".join(map(lambda p: "^neutron.tests.unit." + p, | |
| exclude_plugins)) |
wenjianhn
/ gist:81aa0bbf4cb9879a5214
Created
September 11, 2014 07:03
runuser: debugging neutron server
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| [root@n-controller tmp]# pwd | |
| /tmp | |
| [root@n-controller tmp]# ls -l ./run_neturon.sh | |
| -rwxr--r--. 1 neutron neutron 192 Sep 11 14:59 ./run_neturon.sh | |
| [root@n-controller tmp]# cat run_neturon.sh | |
| /usr/bin/neutron-server --config-file /usr/share/neutron/neutron-dist.conf --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini --log-file /var/log/neutron/server.log | |
| [root@n-controller tmp]# | |
| [root@n-controller tmp]# | |
| [root@n-controller tmp]# runuser -s /bin/bash neutron ./run_neturon.sh | |
| > /usr/lib/python2.6/site-packages/neutron/plugins/ml2/drivers/mech_openvswitch.py(38)__init__() |