{"id":228,"date":"2018-03-13T09:37:57","date_gmt":"2018-03-13T01:37:57","guid":{"rendered":"http:\/\/www.max-shu.com\/blog\/?p=228"},"modified":"2018-03-13T09:37:57","modified_gmt":"2018-03-13T01:37:57","slug":"%e4%bd%bf%e7%94%a8heartbeat%e3%80%81pacemaker%e3%80%81drbd%e5%ae%9e%e7%8e%b0hadoop%e7%9a%84namenode%e7%83%ad%e5%a4%87%e4%bb%bdha","status":"publish","type":"post","link":"http:\/\/www.max-shu.com\/blog\/?p=228","title":{"rendered":"\u4f7f\u7528heartbeat\u3001PaceMaker\u3001drbd\u5b9e\u73b0hadoop\u7684namenode\u70ed\u5907\u4efdHA"},"content":{"rendered":"

\u4f7f\u7528heartbeat\u3001PaceMaker\u3001drbd\u5b9e\u73b0hadoop\u7684namenode\u70ed\u5907\u4efdHA<\/p>\n

<\/div>\n
<\/div>\n
hadoop namenode\u4e3b\u8282\u70b9\u7684HA\u5b9e\u73b0\uff1a
\n\u7f3a\u70b9\uff1a\u65e0\u6cd5\u505a\u5230\u5b8c\u5168\u65e0\u7f1d\u5207\u6362\uff0c\u5207\u6362\u8fc7\u7a0b\u4e2d\u6709\u4e00\u5c0f\u6bb5\u65f6\u95f4\u6ca1\u6cd5\u63d0\u4f9b\u670d\u52a1\uff0c\u4e0d\u8d85\u8fc730\u79d2\uff0c\u8fd8\u53ef\u4ee5\u6539\u7684\u66f4\u77ed\u3002<\/b><\/div>\n
<\/div>\n
\u73af\u5883\uff1a<\/b><\/div>\n
# vi \/etc\/hosts<\/div>\n
10.24.1.47\u00a0\u00a0\u00a0\u00a0\u00a0 nd7-rack2-cloud
\n10.24.1.48\u00a0\u00a0\u00a0\u00a0\u00a0 nd8-rack2-cloud
\n10.24.1.49\u00a0\u00a0\u00a0\u00a0\u00a0 nd9-rack2-cloud
\n10.24.1.7\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 nd-rack2-cloud<\/div>\n
\u5176\u4e2d10.24.1.47\u548c10.24.1.48\u4e3ahadoop\u4e3b\u8282\u70b9\u7684\u4e24\u53f0HA\u673a\u5668\uff0c\u8fd0\u884c\u7740namenode, secondarynamenode, jobtracker\u8fdb\u7a0b\uff1b10.24.1.7\u4e3a\u4ed6\u4eec\u7684\u5171\u540c\u865a\u62dfip\uff0c\u4e3a\u4ece\u8282\u70b9\u548cclient\u8282\u70b9\u63d0\u4f9b\u670d\u52a1\uff1b10.24.149\u4e3a\u4ece\u8282\u70b9\uff0c\u8fd0\u884c\u8fd9datanode\u8ddftasktracker\u8fdb\u7a0b\u3002<\/div>\n
\u8fd0\u884cHadoop\u7684\u7528\u6237\u540d\u4e3ahha\uff0c\u8def\u5f84\u4e3a\/home\/hha\/hadoop\u3002<\/div>\n
<\/div>\n
\n1. \u5148\u5b89\u88c5\u597dhadoop\uff0c\u6b64\u5904\u7565\uff1b\u63a5\u7740\u5b89\u88c5\u597dheartbeat\u548cPaceMaker\uff0c\u6b64\u5904\u7565\u3002\u914d\u7f6e\uff1a<\/b><\/div>\n
# vi …\/hadoop\/conf\/core-site.xml<\/b><\/div>\n
\u6ce8\u610f\u8fd9\u4e9b\u914d\u7f6e\u6587\u4ef6\u91cc\u9762\u7684nd-rack2-cloud\u4e3aHA\u8282\u70b9\u7684VIP\u3002<\/b><\/div>\n
…<\/b><\/div>\n
<property>
\n<name>fs.default.name<\/name>
\n<value>hdfs:\/\/nd-rack2-cloud<\/span>:9000<\/value>
\n<\/property>
\n<property><\/div>\n
…<\/div>\n
\u00a0<\/b><\/div>\n
# vi\u00a0hdfs-site.xml<\/b><\/div>\n
\u6ce8\u610f\/mnt\/drbd_sim\u4e3adrbd\u6240\u7ba1\u7406\u7684\u5206\u533a\uff0c\u5f53\u7136\u8fd8\u53ef\u4ee5\u5728\u522b\u7684\u5206\u533a\u5907\u4efd\uff08\u8fd9\u91cc\u662f\/data1\/hha\/hdfs\/\uff09\u3002<\/b><\/div>\n
…<\/div>\n
<property>
\n<name>dfs.name.dir<\/name>
\n<value>\/data1\/hha\/hdfs\/name<\/span>,\/mnt\/drbd_sim\/hdfs\/<\/span>name<\/value><\/div>\n
<\/property><\/p>\n<\/div>\n
<property>
\n<name>fs.checkpoint.dir<\/name>
\n<value>\/data1\/hha\/hdfs\/namesecondary<\/span>,\/mnt\/drbd_sim\/hdfs\/namesecondary<\/span><\/value><\/div>\n
\u00a0 <description>Determines where on the local filesystem the DFS secondary
\nname node should store the temporary images to merge.
\nIf this is a comma-delimited list of directories then the image is
\nreplicated in all of the directories for redundancy.
\n<\/description>
\n<\/property>\n<\/div>\n
<property>
\n<name>dfs.data.dir<\/name>
\n<value>\/data0\/hha\/hdfs\/data<\/value>
\n<\/property><\/div>\n
…<\/div>\n
<\/div>\n
# vi\u00a0mapred-site.xml<\/b><\/div>\n
…<\/div>\n
<property>
\n<name>mapred.local.dir<\/name>
\n<value>\/mnt\/drbd_sim\/mapreduce<\/span><\/value><\/div>\n
<\/property><\/div>\n
…<\/div>\n
<\/div>\n
# vi \/etc\/ha.d\/ha.cf<\/b><\/div>\n
debugfile \/var\/log\/ha-debug<\/div>\n
crm respawn<\/div>\n
logfile \/var\/log\/ha-log<\/div>\n
logfacility\u00a0\u00a0\u00a0\u00a0 local0<\/div>\n
keepalive 2<\/div>\n
deadtime 30<\/div>\n
warntime 10<\/div>\n
initdead 120<\/div>\n
mcast bond0 225.0.0.1 694 1 0<\/div>\n
auto_failback on<\/div>\n
node\u00a0\u00a0\u00a0 nd7-rack2-cloud
\nnode\u00a0\u00a0\u00a0 nd8-rack2-cloud<\/div>\n
<\/div>\n
# vi \/etc\/ha.d\/authkeys<\/b><\/div>\n
auth 1
\n1 crc<\/div>\n
<\/div>\n
# crm configure edit<\/b><\/div>\n

node $id=”38a09183-9fc0-4ca6-8f81-349d94930261″ nd8-rack2-cloud \\
\nattributes standby=”off”
\nnode $id=”560cc9af-2fd7-4af3-ab51-d221f95d80f8″ nd7-rack2-cloud \\
\nattributes standby=”off”
\nprimitive drbd lsb:<\/span>hadoop_name_dir_copy<\/span>\u00a0\\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op monitor interval=”10s”<\/span>
\nprimitive failover-ip ocf:heartbeat:IPaddr \\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 params<\/span>\u00a0ip=”10.24.1.7″ nic=”bond0″ cidr_netmask=”255.255.255.0″<\/span>\u00a0\\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op monitor interval=”10s”<\/span>
\nprimitive hadoop_jobtracker lsb:<\/span>hadoop_jobtracker<\/span>\u00a0\\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op monitor interval=”10s”<\/span>
\nprimitive hadoop_namenode lsb:<\/span>hadoop_namenode<\/span>\u00a0\\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op monitor interval=”10s”<\/span>
\nprimitive hadoop_secondarynamenode lsb:<\/span>hadoop_secondarynamenode<\/span>\u00a0\\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op monitor interval=”10s”<\/span>
\nprimitive ping ocf:pacemaker:ping \\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 params host_list=”10.24.1.1″ multiplier=”100″ \\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op monitor interval=”15s” timeout=”60s” \\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op start interval=”0″ timeout=”90s” \\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 op stop interval=”0″ timeout=”100s”<\/span>
\ngroup<\/span>\u00a0hadoop<\/span>\u00a0failover-ip drbd hadoop_namenode hadoop_secondarynamenode hadoop_jobtracker<\/span>
\nclone clone_ping ping \\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 meta globally-unique=”false”<\/span>
\nlocation location_hadoop hadoop \\<\/span>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 rule $id=”location_hadoop-rule” -inf: not_defined pingd or pingd lte 0<\/span>
\nlocation location_hadoop_prior hadoop 100: nd7-rack2-cloud<\/span>
\nproperty $id=”cib-bootstrap-options” \\
\ndc-version=”1.1.5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f” \\
\ncluster-infrastructure=”Heartbeat” \\
\nno-quorum-policy=”ignore” \\
\nstart-failure-is-fatal=”false” \\
\nstonith-enabled=”false”
\nrsc_defaults $id=”rsc-options” \\<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 resource-stickiness=”100″\u00a0<\/span><\/p>\n

2. \u5b9e\u73b0\u4e09\u4e2ahadoop\u8fdb\u7a0b\u53ca\u4e00\u4e2a\u62f7\u8d1d\u6570\u636e\u7684\u670d\u52a1\u578bLSB\u811a\u672c\uff0c\u8fd9\u4e9b\u811a\u672c\u8fd8\u4e0d\u901a\u7528\uff0c\u6362\u4e00\u4e2a\u7cfb\u7edf\u5219\u90fd\u9700\u8981\u4fee\u6539\uff1a<\/b>
\n# ll \/etc\/init.d\/
\n…
\nhadoop_jobtracker
\nhadoop_namenode
\nhadoop_secondarynamenode
\nhadoop_name_dir_copy
\n…<\/p>\n<\/div>\n

# chmod +x \/etc\/init.d\/hadoop_*<\/div>\n
# vi\u00a0hadoop_name_dir_copy<\/b><\/div>\n
#!\/bin\/bash
\n######################################################################
\nRETVAL=0
\n# Source function library.
\n. \/etc\/rc.d\/init.d\/functions
\n# Source networking configuration.
\n[ -f \/etc\/sysconfig\/network ] && . \/etc\/sysconfig\/network
\n######################################################################
\n# See how we were called.
\ncase “$1” in
\nstart)
\nsu – root -c “\/sbin\/drbdadm primary all”
\nsu – root -c “mount \/dev\/drbd0 \/mnt\/drbd_sim”
\nsu – root -c “sleep 1”
\nsu – root -c “nohup \/sbin\/drbd_connect.sh >\/dev\/null 2>&1 &”
\nsu – root -c “chmod -R 777 \/mnt\/drbd_sim\/”
\nsu – hha -c “mkdir -p \/data1\/hha\/hdfs\/name”
\nsu – hha -c “\\cp -rf \/mnt\/drbd_sim\/* \/data1\/hha\/hdfs\/name\/”
\necho $'”Start” command: [OK]!’
\nRETVAL=0
\n;;
\nstop)
\nsu – root -c “sleep 2”
\nsu – root -c “umount \/mnt\/drbd_sim”
\nsu – root -c “sleep 1”
\nsu – root -c “\/sbin\/drbdadm disconnect all”
\nsu – root -c “\/sbin\/drbdadm secondary all”
\nsu – root -c “\/sbin\/drbdadm — –discard-my-data connect all”
\n### “drbdadm connect all”\u00a0 until “drbdadm cstate all” return Connected
\nsu – root -c “nohup \/sbin\/drbd_connect.sh >\/dev\/null 2>&1 &”
\necho $'”Stop” command: [OK]!’
\nRETVAL=0
\n;;
\nreload)
\necho $'”reload” command is not supported!’
\nRETVAL=0
\n;;
\nrestart)
\necho $'”restart” command is not supported!’
\nRETVAL=0
\n;;
\nstatus)
\necho $'”status” command is not supported!’
\nRETVAL=0
\n;;
\n*)
\necho $”Usage: $0 {start|stop|restart|reload|status|help}”
\nexit 1
\nesac
\nexit $RETVAL
\n######################################################################<\/div>\n
<\/div>\n
# vi\u00a0hadoop_namenode<\/b><\/div>\n
#!\/bin\/bash
\n######################################################################
\nRETVAL=0
\n# Source function library.
\n. \/etc\/rc.d\/init.d\/functions
\n# Source networking configuration.
\n[ -f \/etc\/sysconfig\/network ] && . \/etc\/sysconfig\/network
\n######################################################################
\n# See how we were called.
\ncase “$1” in
\nstart)
\nsu – hha -c “\/home\/hha\/hadoop\/bin\/hadoop-daemon.sh start namenode”
\necho $'”Start” command: [OK]!’
\nRETVAL=0
\n;;
\nstop)
\nsu – hha -c “\/home\/hha\/hadoop\/bin\/hadoop-daemon.sh stop namenode”
\necho $'”Stop” command: [OK]!’
\nRETVAL=0
\n;;
\nreload)
\necho $'”reload” command is not supported!’
\nRETVAL=0
\n;;
\nrestart)
\necho $'”restart” command is not supported!’
\nRETVAL=0
\n;;
\nstatus)
\necho $'”status” command is not supported!’
\nRETVAL=0
\n;;
\n*)
\necho $”Usage: $0 {start|stop|restart|reload|status|help}”
\nexit 1
\nesac
\nexit $RETVAL
\n######################################################################<\/div>\n
<\/div>\n
# vi\u00a0hadoop_secondarynamenode<\/b><\/div>\n
#!\/bin\/bash
\n######################################################################
\nRETVAL=0
\n# Source function library.
\n. \/etc\/rc.d\/init.d\/functions
\n# Source networking configuration.
\n[ -f \/etc\/sysconfig\/network ] && . \/etc\/sysconfig\/network
\n######################################################################
\n# See how we were called.
\ncase “$1” in
\nstart)
\nsu – hha -c “\/home\/hha\/hadoop\/bin\/hadoop-daemon.sh start secondarynamenode”
\necho $'”Start” command: [OK]!’
\nRETVAL=0
\n;;
\nstop)
\nsu – hha -c “\/home\/hha\/hadoop\/bin\/hadoop-daemon.sh stop secondarynamenode”
\necho $'”Stop” command: [OK]!’
\nRETVAL=0
\n;;
\nreload)
\necho $'”reload” command is not supported!’
\nRETVAL=0
\n;;
\nrestart)
\necho $'”restart” command is not supported!’
\nRETVAL=0
\n;;
\nstatus)
\necho $'”status” command is not supported!’
\nRETVAL=0
\n;;
\n*)
\necho $”Usage: $0 {start|stop|restart|reload|status|help}”
\nexit 1
\nesac
\nexit $RETVAL
\n######################################################################<\/div>\n
<\/div>\n
#vi\u00a0hadoop_jobtracker<\/b><\/div>\n
#!\/bin\/bash
\n######################################################################
\nRETVAL=0
\n# Source function library.
\n. \/etc\/rc.d\/init.d\/functions
\n# Source networking configuration.
\n[ -f \/etc\/sysconfig\/network ] && . \/etc\/sysconfig\/network
\n######################################################################
\n# See how we were called.
\ncase “$1” in
\nstart)
\nsu – hha -c “\/home\/hha\/hadoop\/bin\/hadoop-daemon.sh start jobtracker”
\necho $'”Start” command: [OK]!’
\nRETVAL=0
\n;;
\nstop)
\nsu – hha -c “\/home\/hha\/hadoop\/bin\/hadoop-daemon.sh stop jobtracker”
\necho $'”Stop” command: [OK]!’
\nRETVAL=0
\n;;
\nreload)
\necho $'”reload” command is not supported!’
\nRETVAL=0
\n;;
\nrestart)
\necho $'”restart” command is not supported!’
\nRETVAL=0
\n;;
\nstatus)
\necho $'”status” command is not supported!’
\nRETVAL=0
\n;;
\n*)
\necho $”Usage: $0 {start|stop|restart|reload|status|help}”
\nexit 1
\nesac
\nexit $RETVAL
\n######################################################################<\/div>\n
<\/div>\n
<\/div>\n
3. \u5b9e\u73b0\u4e24\u4e2a\u68c0\u67e5\u72b6\u6001\u7684\u811a\u672c<\/b>\uff0c\u8fd9\u4e9b\u811a\u672c\u8fd8\u4e0d\u901a\u7528\uff0c\u6362\u4e00\u4e2a\u7cfb\u7edf\u5219\u90fd\u9700\u8981\u4fee\u6539<\/b>\uff1a<\/b><\/div>\n
# ll \/sbin\/*.sh<\/div>\n
drbd_connect.sh<\/div>\n
heartbeat_rc_local.sh<\/div>\n
<\/div>\n
# vi\u00a0drbd_connect.sh<\/b><\/div>\n
#!\/bin\/env bash
\n# nohup \/sbin\/drbd_connect.sh >\/dev\/null 2>&1 &
\nwhile [ 1 ] ;
\ndo
\ncstate=`\/sbin\/drbdadm cstate all`
\nif [ “$cstate” != “Connected” ] ;
\nthen
\n\/sbin\/drbdadm connect all
\nelse
\nexit 0
\nfi
\nsleep 3
\ndone<\/div>\n
<\/div>\n
# vi\u00a0heartbeat_rc_local.sh<\/b><\/div>\n
#!\/bin\/env bash
\n# add the following line to “rc.local” file:
\n# nohup \/sbin\/heartbeat_rc_local.sh 10.24.1.1 >\/dev\/null 2>&1 &
\nwhile [ 1 ] ;
\ndo
\npingRtn=`\/bin\/ping $1 -c 3 -q | grep “packet loss” | awk ‘{ print $6}’`
\nif [ “$pingRtn” = “100%” -o “$pingRtn” = “+3” -o “$pingRtn” = “” ] ;
\nthen
\nservice heartbeat stop
\nelse
\nservice heartbeat start
\nfi
\nsleep 10
\ndone<\/div>\n
<\/div>\n
\u4fee\u6539\/etc\/rc.local\uff0c\u52a0\u5165\u4ee5\u4e0b\u5185\u5bb9\uff0c\u9632\u6b62heartbeat\u8fdb\u5165\u88c2\u8111\u72b6\u6001\uff0c\u53ea\u6709\u6700\u540e\u4e00\u884c\u662f\u5fc5\u987b\u7684\uff0c\u524d\u9762\u51e0\u884c\u5728\u6a21\u62df\u78c1\u76d8\u65f6\u9700\u8981\u7528\uff0c\u7528\u771f\u6b63\u5206\u533a\u65f6\u4e0d\u9700\u8981\uff1a<\/b><\/div>\n

dd if=\/dev\/zero of=drbd_sim bs=4k count=5000
\nlosetup \/dev\/loop0 drbd_sim
\nmkfs.ext3 -F \/dev\/loop0
\ndrbdadm detach\u00a0 r0
\ndd if=\/dev\/zero of=\/dev\/loop0
\ndrbdadm create-md r0<\/p>\n

drbdadm attach\u00a0 r0<\/div>\n
<\/div>\n
nohup \/sbin\/heartbeat_rc_local.sh\u00a010.24.1.1<\/span>\u00a0>\/dev\/null 2>&1 &<\/div>\n
<\/div>\n
<\/div>\n
4. \u914d\u7f6e\u5206\u533a\u5b9e\u65f6\u540c\u6b65\u5de5\u5177DRBD\uff1a<\/b>
\n\u5b89\u88c5\uff0c\u8fd9\u4e2adrbd\u8ddf\u5185\u6838\u5173\u7cfb\u5bc6\u5207\uff0c\u6700\u597d\u7528yum install\u5b89\u88c5\uff0c\u6216\u62f7\u8d1d\u76f8\u5e94\u5185\u6838\u7684rpm\u5305\u5b89\u88c5\uff08\u5982\uff1adrbd-8.0.16-5.el5.centos.x86_64.rpm\u548ckmod-drbd-8.0.16-5.el5_3.x86_64.rpm\uff09\uff1a
\n# yum install kmod-drbd<\/p>\n

\u6a21\u62df\u51fa\u5206\u533a\uff0c\u5b9e\u9645\u4e2d\u9700\u8981\u7528\u771f\u6b63\u7684\u5206\u533a\u6765\u4ee3\u66ff\uff0c\u5426\u5219\u91cd\u542f\u5c31\u6ca1\u6709\u4e86<\/span>\uff1a
\n# dd if=\/dev\/zero of=drbd_sim bs=4k count=5000
\n# losetup \/dev\/loop0 drbd_sim
\n# mkfs.ext3 -F \/dev\/loop0
\n# mkdir \/mnt\/drbd_sim
\n# mount -t ext3 \/dev\/loop0 \/mnt\/drbd_sim
\n# umount \/mnt\/drbd_sim<\/p>\n

\u914d\u7f6edrbd\uff0c\u8fd9\u91cc\u4e3a8.0.16\u7684\u65b9\u5f0f\uff0c\u4ee5\u540e\u7248\u672c\u7684\u914d\u7f6e\u6587\u4ef6\u5e94\u8be5\u4f1a\u6709\u53d8\u5316:<\/p><\/div>\n

# cp \/usr\/share\/doc\/drbd-8.0.16\/drbd.conf\u00a0 \/etc\/
\n# vi \/etc\/drbd.conf<\/b><\/div>\n
…
\nresource r0 {
\nprotocol\u00a0 C;<\/div>\n
\u00a0 startup { wfc-timeout 3; degr-wfc-timeout 3; }
\non nd7-rack2-cloud {
\ndevice\u00a0\u00a0\u00a0 \/dev\/drbd0;
\ndisk\u00a0\u00a0\u00a0\u00a0\u00a0 \/dev\/loop0;
\nmeta-disk internal;
\naddress\u00a0\u00a0 10.24.1.47:7789;
\n}
\non nd8-rack2-cloud {
\ndevice\u00a0\u00a0\u00a0 \/dev\/drbd0;
\ndisk\u00a0\u00a0\u00a0\u00a0\u00a0 \/dev\/loop0;
\nmeta-disk internal;
\naddress\u00a0\u00a0 10.24.1.48:7789;
\n}
\n}<\/div>\n
\u4e24\u8fb9\u6267\u884c\uff1a
\n# dd if=\/dev\/zero of=\/dev\/loop0
\n# drbdadm create-md r0<\/b>
\n# service drbd start<\/b>
\n\u5728\u67d0\u4e00\u53f0\u4e0a\u6267\u884c\uff1a
\n# drbdsetup \/dev\/drbd0 primary -o<\/b>
\n# cat \/proc\/drbd<\/b>
\n0: cs:Connected st:Primary\/Secondary ds:UpToDate\/UpToDate C r—
\nns:19960 nr:0 dw:0 dr:19960 al:0 bm:2 lo:0 pe:0 ua:0 ap:0
\nresync: used:0\/61 hits:1246 misses:2 starving:0 dirty:0 changed:2
\nact_log: used:0\/257 hits:0 misses:0 starving:0 dirty:0 changed:0
\n# mkfs.ext3 -F \/dev\/drbd0<\/b>
\n# mount -t ext3 \/dev\/drbd0 \/mnt\/drbd_sim<\/b>
\n\u6bcf\u505a\u4e00\u6b21\u5207\u6362\uff0c\u90fd\u5fc5\u987b\u6267\u884cdrbdadm primary all<\/b>\uff0c\u5426\u5219\u53ef\u80fd\u53cc\u65b9\u90fd\u4f1a\u662fsecondary\u3002
\n\u7b2c\u4e00\u6b21\u540c\u6b65\u7684\u8fc7\u7a0b\u5f88\u6162\uff0c\u53ea\u6709350KB\/s\uff0c\u800c\u4e14\u6574\u4e2a\u76d8\u9700\u8981\u540c\u6b65\u4e00\u6b21\uff0c\u65f6\u95f4\u4f1a\u5f88\u6f2b\u957f\u3002<\/span><\/div>\n
\n\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d>><\/span>
\n\u539f\u6765\u6253\u7b97\u7528NFS\uff0c\u6d4b\u8bd5\u53d1\u73b0\u884c\u4e0d\u901a\uff1a\u4e00\u65b9\u65ad\u7f51\uff0c\u53e6\u5916\u4e00\u65b9hadoop\u542f\u52a8\u4e0d\u4e86\u3002
\n\u4e00\u65b9\u914d\u7f6e\uff1a
\n# mkdir \/data-nfs
\n# chmod 777 \/data-nfs
\n# vi \/etc\/exports
\n\/data-nfs PeerIP(rw,ync,no_root_squash,anonuid=65534,anongid=65534)
\n# service nfs start
\n\u53e6\u4e00\u65b9\u914d\u7f6e\uff1a
\n# mkdir \/mnt\/hdfs-nfs
\n# mount -t nfs -o hard,intr,bg,timeo=50 PeerIP:\/data-nfs \/mnt\/hdfs-nfs
\n# vi \/etc\/fstab
\nPeerIP:\/data-nfs\u00a0\u00a0\u00a0 \/mnt\/hdfs-nfs\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 nfs\u00a0\u00a0\u00a0\u00a0 hard,intr,bg,timeo=50\u00a0 0 0
\n\u7136\u540e\u4ea4\u6362\u8fc7\u6765\u914d\u7f6e\u3002
\n<<\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d<\/span><\/p>\n

5. \u542f\u52a8\uff1a<\/b>
\nMaster\u4e3b\u673a\uff1a
\n# service heartbeat start
\n# su – hha -c “\/home\/hha\/hadoop\/bin\/start-all.sh”
\n\u5fc5\u987b\u5148\u542f\u52a8heartbeat\uff08\u5c31\u540c\u65f6\u542f\u52a8\u4e86namenode\/secondarynamenode\/jobtracker\uff09\uff0c\u7136\u540e\u518d\u8fd0\u884cstart-all.sh\uff0c\u628a\u522b\u7684datanode\/tasktracker\u4e4b\u7c7b\u7684\u542f\u52a8\u3002
\n\u53e6\u4e00\u53f0\u5907\u4efd\u4e3b\u673a\uff1a
\n# service heartbeat start
\n\u4e24\u53f0\u673a\u5668\u542f\u52a8\u9700\u8981\u4e00\u70b9\u65f6\u95f4\uff0c\u4f30\u8ba1\u4e0d\u8d85\u8fc72\u5206\u949f\u3002<\/div>\n

<\/div>\n
<\/div>\n
6. \u68c0\u67e5\uff1a<\/b><\/div>\n
Master\u4e3b\u673a\uff1a<\/b><\/div>\n
# cat \/proc\/drbd<\/div>\n
\u770b\u5230\u5904\u4e8e\u8fde\u63a5\u72b6\u6001Connected\uff0c\u81ea\u5df1\u662fPrimary\u65b9\uff0c\u5bf9\u65b9\u662fSecondary\u65b9\uff0c\u6570\u636e\u5904\u4e8e\u66f4\u65b0\u72b6\u6001UpToDate\u3002<\/div>\n
version: 8.0.16 (api:86\/proto:86)
\nGIT-hash: d30881451c988619e243d6294a899139eed1183d build by mockbuild@v20z-x86-64.home.local, 2009-08-22 13:26:57
\n0: cs:Connected<\/span>\u00a0st:Primary\/Secondary<\/span>\u00a0ds:UpToDate\/UpToDate<\/span>\u00a0C r—
\nns:122 nr:0 dw:28942 dr:212787 al:5 bm:99 lo:0 pe:0 ua:0 ap:0
\nresync: used:0\/61 hits:0 misses:0 starving:0 dirty:0 changed:0
\nact_log: used:0\/257 hits:8807 misses:5 starving:0 dirty:0 changed:5<\/div>\n
<\/div>\n
\n
# df -h<\/div>\n
\u542b\u6709\/dev\/drbd0\u6240mount\u4e0a\u6765\u7684\u5206\u533a\/mnt\/drbd_sim\u3002<\/div>\n
\/dev\/drbd0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 19M\u00a0 5.5M\u00a0\u00a0 13M\u00a0 31% \/mnt\/drbd_sim<\/div>\n
<\/div>\n
# ll \/mnt\/drbd_sim<\/div>\n
\u5206\u533a\u91cc\u9762\u5df2\u7ecf\u4fdd\u5b58\u6709\u5185\u5bb9\u3002<\/div>\n
hdfs<\/div>\n
mapreduce<\/div>\n
<\/div>\n

# ifconfig<\/p><\/div>\n

\u591a\u4e86\u4e00\u4e2aVIP\uff1a10.24.1.7\u3002<\/div>\n
bond0:0\u00a0\u00a0 Link encap:Ethernet\u00a0 HWaddr 00:22:19:5D:48:3D
\ninet addr:10.24.1.7\u00a0 Bcast:10.24.1.255\u00a0 Mask:255.255.255.0
\nUP BROADCAST RUNNING MASTER MULTICAST\u00a0 MTU:1500\u00a0 Metric:1<\/div>\n
<\/div>\n
# jps<\/div>\n
\u53ef\u4ee5\u770b\u5230hadoop\u7684\u4e09\u4e2a\u8fdb\u7a0b\u90fd\u5df2\u7ecf\u542f\u52a8\u6b63\u5e38\uff0c\u53ef\u4ee5\u4ecehadoop web\u754c\u9762\u68c0\u67e5\u4e00\u4e0b\u3002<\/div>\n
25279 NameNode
\n25403 SecondaryNameNode
\n28125 Jps
\n25635 JobTracker<\/div>\n
<\/div>\n
# crm status<\/div>\n
\u770b\u5230\u53cc\u65b9\u90fd\u5728\u7ebfonline\uff0c\u670d\u52a1\u7ec4hadoop\u542f\u52a8\u5728nd8-rack2-cloud\u4e0a\uff0c\u6ce8\u610f\u5230\u987a\u5e8f\uff0c\u542f\u52a8\u65f6\u6309\u987a\u5e8f\u542f\u52a8\uff0c\u505c\u6b62\u65f6\u53cd\u8fc7\u6765\u7684\u987a\u5e8f\u505c\u6b62\uff1b\u670d\u52a1\u5668ping\u542f\u52a8\u5728\u53cc\u65b9\u4e0a\u3002
\n============
\nLast updated: Fri Nov 11 09:18:54 2011
\nStack: Heartbeat
\nCurrent DC: nd8-rack2-cloud (38a09183-9fc0-4ca6-8f81-349d94930261) – partition with quorum
\nVersion: 1.1.5-01e86afaaa6d4a8c4836f68df80ababd6ca3902f
\n2 Nodes configured, unknown expected votes
\n2 Resources configured.
\n============<\/p>\n

Online: [ nd8-rack2-cloud nd7-rack2-cloud ]<\/p>\n

Resource Group: hadoop
\nfailover-ip\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (ocf::heartbeat:IPaddr):\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Started nd8-rack2-cloud
\ndrbd\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (lsb:hadoop_name_dir_copy):\u00a0\u00a0\u00a0\u00a0 Started nd8-rack2-cloud
\nhadoop_namenode\u00a0\u00a0\u00a0 (lsb:hadoop_namenode):\u00a0 Started nd8-rack2-cloud
\nhadoop_secondarynamenode\u00a0\u00a0 (lsb:hadoop_secondarynamenode): Started nd8-rack2-cloud
\nhadoop_jobtracker\u00a0 (lsb:hadoop_jobtracker):\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Started nd8-rack2-cloud
\nClone Set: clone_ping [ping]
\nStarted: [ nd7-rack2-cloud nd8-rack2-cloud ]<\/p><\/div>\n

<\/div>\n
<\/div>\n
\u4ece\u4e3b\u673a\uff1a<\/b><\/div>\n
# cat \/proc\/drbd<\/div>\n
version: 8.0.16 (api:86\/proto:86)
\nGIT-hash: d30881451c988619e243d6294a899139eed1183d build by mockbuild@v20z-x86-64.home.local, 2009-08-22 13:26:57
\n0: cs:Connected<\/span>\u00a0st:Secondary\/Primary<\/span>\u00a0ds:UpToDate\/UpToDate<\/span>\u00a0C r—
\nns:0 nr:177 dw:45003 dr:111904 al:5 bm:105 lo:0 pe:0 ua:0 ap:0
\nresync: used:0\/61 hits:0 misses:0 starving:0 dirty:0 changed:0
\nact_log: used:0\/127 hits:9363 misses:5 starving:0 dirty:0 changed:5<\/div>\n
<\/div>\n
# df -h<\/div>\n
…\u6ca1\u6709\/dev\/drbd0\u5206\u533a<\/div>\n
<\/div>\n
# ll \/mnt\/drbd_sim<\/div>\n
\u6ca1\u6709\u5185\u5bb9<\/div>\n
<\/div>\n
# ifconfig<\/div>\n
… \u6ca1\u6709bond0:x<\/div>\n
<\/div>\n
# jps<\/div>\n
\u6ca1\u6709hadoop\u7684\u4efb\u4f55\u8fdb\u7a0b\u3002<\/div>\n
<\/div>\n
# crm status<\/div>\n
\u663e\u793a\u8ddfMaster\u4e3b\u673a\u4e00\u81f4\u3002<\/div>\n
<\/div>\n
\n7. \u5207\u6362\uff1a<\/b><\/div>\n
\u624b\u5de5\u547d\u4ee4\u5207\u6362\uff1a<\/b><\/div>\n
Master\u4e3b\u673a\uff1a<\/div>\n
# crm node standby \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u628a\u81ea\u5df1\u53d8\u6210standby\u72b6\u6001\uff0c\u89e6\u53d1\u5207\u6362\uff0c\u5bf9\u65b9\u53d8\u6210\u4e3b\u8282\u70b9<\/div>\n
# crm node online \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u628a\u81ea\u5df1\u53d8\u6210online\u72b6\u6001\uff0c\u4e0d\u4f1a\u5207\u6362\u00a0\uff0c\u5bf9\u65b9\u8fd8\u662f\u4e3b\u8282\u70b9\u3002<\/div>\n
\u4ece\u4e3b\u673a\u4e0d\u7528\u64cd\u4f5c\u3002<\/div>\n
\u8be5\u8fc7\u7a0b\u5f88\u5feb\uff0c\u539fMaster\u53d8\u6210\u4e86slave\uff0c\u539fslave\u53d8\u6210\u4e86master\u3002<\/div>\n
<\/div>\n
\u65ad\u7f51\u7edc\u670d\u52a1\u5207\u6362\uff1a<\/b><\/div>\n
Master\u4e3b\u673a\uff1a<\/div>\n
# service network stop && sleep 150 && service network start
\n\u89e6\u53d1\u5207\u6362\u572830\u79d2\uff0c\u539fslave\u53d8\u6210\u4e86master\uff0c\u7b49\u7f51\u7edc\u8d77\u6765\u540e\uff0c\u539fMaster\u53d8\u6210\u4e86slave\u3002<\/div>\n
<\/div>\n
\u62d4\u7f51\u7ebf\u5207\u6362\uff1a<\/b><\/div>\n
\u76f4\u63a5\u62d4\u6389Master\u4e3b\u673a\u7684\u7f51\u7ebf\uff0c\u53ef\u4ee5\u770b\u5230\u5207\u6362\u6210\u529f\u3002<\/div>\n
\u89e6\u53d1\u5207\u6362\u572830\u79d2\uff0c\u539fslave\u53d8\u6210\u4e86master\uff0c\u7b49\u7f51\u7ebf\u63d2\u56de\u53bb\u540e\uff0c\u539fMaster\u53d8\u6210\u4e86slave\u3002<\/div>\n
<\/div>\n
\u91cd\u542f\u5207\u6362\uff1a<\/b><\/div>\n
Master\u4e3b\u673a\uff1a<\/div>\n
# reboot<\/div>\n
\u89e6\u53d1\u5207\u6362\u572830\u79d2\uff0c\u539fslave\u53d8\u6210\u4e86master\uff0c\u7b49\u673a\u5668\u542f\u52a8\u5b8c\u6bd5\uff0c\u539fMaster\u53d8\u6210\u4e86slave\u3002<\/div>\n
<\/div>\n
\u65ad\u7535\u5207\u6362\uff1a<\/b><\/div>\n
\u76f4\u63a5\u62d4\u6389Master\u4e3b\u673a\u7684\u7535\u6e90\uff08\u4e0d\u662f\u6309\u670d\u52a1\u5668\u7535\u6e90\u5f00\u5173\uff09\uff0c\u53ef\u4ee5\u770b\u5230\u5207\u6362\u6210\u529f\u3002<\/div>\n
\u89e6\u53d1\u5207\u6362\u572830\u79d2\uff0c\u539fslave\u53d8\u6210\u4e86master\uff0c\u7b49\u63d2\u4e0a\u7535\u6e90\uff0c\u673a\u5668\u542f\u52a8\u5b8c\u6bd5\uff0c\u539fMaster\u53d8\u6210\u4e86slave\u3002<\/div>\n
<\/div>\n","protected":false},"excerpt":{"rendered":"

\u4f7f\u7528heartbeat\u3001PaceMaker\u3001drbd\u5b9e\u73b0hadoop\u7684namenode\u70ed\u5907\u4efdHA hadoop …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[145,133,80,143,146,144,147],"class_list":["post-228","post","type-post","status-publish","format-standard","hentry","category-63","tag-drbd","tag-ha","tag-hadoop","tag-heartbeat","tag-namenode","tag-pacemaker","tag-147"],"views":1644,"_links":{"self":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/228","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=228"}],"version-history":[{"count":1,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/228\/revisions"}],"predecessor-version":[{"id":229,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/228\/revisions\/229"}],"wp:attachment":[{"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=228"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.max-shu.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}