啟動(dòng)hadoop報(bào)錯(cuò)
[root@master hadoop-2.8.2]# ./sbin/start-all.sh
This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh
Starting namenodes on [master]
master: namenode running as process 366. Stop it first.
slave1: ssh: connect to host slave1 port 22: Connection refused
slave2: ssh: connect to host slave2 port 22: Connection refused
slave3: ssh: connect to host slave3 port 22: Connection refused
localhost: datanode running as process 511. Stop it first.
Starting secondary namenodes [master]
master: secondarynamenode running as process 704. Stop it first.
starting yarn daemons
resourcemanager running as process 2738. Stop it first.
slave1: ssh: connect to host slave1 port 22: Connection refused
slave2: ssh: connect to host slave2 port 22: Connection refused
slave3: ssh: connect to host slave3 port 22: Connection refused
localhost: nodemanager running as process 2860. Stop it first.
報(bào)錯(cuò)顯示 slave1: ssh: connect to host slave1 port 22: Connection refused
docker容器如下,一個(gè)master
,三個(gè)slave
[root@Optimus /]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
4a38c8552b61 hadoop "/bin/bash" 22 hours ago Up 37 minutes slave3
8366ebfd9949 hadoop "/bin/bash" 22 hours ago Up 37 minutes slave2
3ef4f68c9cf6 hadoop "/bin/bash" 22 hours ago Up 37 minutes slave1
758c647970c8 hadoop "/bin/bash" 22 hours ago Up 22 hours 0.0.0.0:8088->8088/tcp, 0.0.0.0:19888->19888/tcp, 0.0.0.0:50070->50070/tcp master
host
文件如下
[root@master /]# cat /etc/hosts
172.17.0.42 master
172.17.0.46 slave1
172.17.0.47 slave2
172.17.0.48 slave3
127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
master
和slave
之間都可以ping
通
[root@master /]# ping 172.17.0.46
PING 172.17.0.46 (172.17.0.46) 56(84) bytes of data.
64 bytes from 172.17.0.46: icmp_seq=1 ttl=64 time=0.360 ms
64 bytes from 172.17.0.46: icmp_seq=2 ttl=64 time=0.061 ms
64 bytes from 172.17.0.46: icmp_seq=3 ttl=64 time=0.061 ms
^C
--- 172.17.0.46 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2022ms
rtt min/avg/max/mdev = 0.061/0.160/0.360/0.141 ms
[root@master /]# ping 172.17.0.47
PING 172.17.0.47 (172.17.0.47) 56(84) bytes of data.
64 bytes from 172.17.0.47: icmp_seq=1 ttl=64 time=0.398 ms
64 bytes from 172.17.0.47: icmp_seq=2 ttl=64 time=0.061 ms
^C
--- 172.17.0.47 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1782ms
rtt min/avg/max/mdev = 0.061/0.229/0.398/0.169 ms
[root@master /]# ping 172.17.0.48
PING 172.17.0.48 (172.17.0.48) 56(84) bytes of data.
64 bytes from 172.17.0.48: icmp_seq=1 ttl=64 time=0.343 ms
64 bytes from 172.17.0.48: icmp_seq=2 ttl=64 time=0.055 ms
^C
--- 172.17.0.48 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1310ms
rtt min/avg/max/mdev = 0.055/0.199/0.343/0.144 ms
防火墻狀態(tài),分別關(guān)閉了master
、slave
的防火墻
關(guān)閉master防火墻
[root@master /]# chkconfig iptables off
關(guān)閉slave1防火墻
[root@slave1 /]# chkconfig iptables off
關(guān)閉slave2防火墻
[root@slave2 /]# chkconfig iptables off
關(guān)閉slave3防火墻
[root@slave3 /]# chkconfig iptables off
[root@Optimus /]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 DOCKER all -- 0.0.0.0/0 0.0.0.0/0
2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ctstate RELATED,ESTABLISHED
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
4 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
Chain DOCKER (1 references)
num target prot opt source destination
1 ACCEPT tcp -- 0.0.0.0/0 172.17.0.5 tcp dpt:22
2 ACCEPT tcp -- 0.0.0.0/0 172.17.0.9 tcp dpt:80
3 ACCEPT tcp -- 0.0.0.0/0 172.17.0.15 tcp dpt:3306
4 ACCEPT tcp -- 0.0.0.0/0 172.17.0.30 tcp dpt:80
5 ACCEPT tcp -- 0.0.0.0/0 172.17.0.42 tcp dpt:50070
6 ACCEPT tcp -- 0.0.0.0/0 172.17.0.42 tcp dpt:19888
7 ACCEPT tcp -- 0.0.0.0/0 172.17.0.42 tcp dpt:8088
Table: nat
Chain PREROUTING (policy ACCEPT)
num target prot opt source destination
1 DOCKER all -- 0.0.0.0/0 0.0.0.0/0 ADDRTYPE match dst-type LOCAL
Chain POSTROUTING (policy ACCEPT)
num target prot opt source destination
1 MASQUERADE all -- 172.17.0.0/16 0.0.0.0/0
2 MASQUERADE tcp -- 172.17.0.5 172.17.0.5 tcp dpt:22
3 MASQUERADE tcp -- 172.17.0.9 172.17.0.9 tcp dpt:80
4 MASQUERADE tcp -- 172.17.0.15 172.17.0.15 tcp dpt:3306
5 MASQUERADE tcp -- 172.17.0.30 172.17.0.30 tcp dpt:80
6 MASQUERADE tcp -- 172.17.0.42 172.17.0.42 tcp dpt:50070
7 MASQUERADE tcp -- 172.17.0.42 172.17.0.42 tcp dpt:19888
8 MASQUERADE tcp -- 172.17.0.42 172.17.0.42 tcp dpt:8088
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
1 DOCKER all -- 0.0.0.0/0 !127.0.0.0/8 ADDRTYPE match dst-type LOCAL
Chain DOCKER (2 references)
num target prot opt source destination
1 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:2222 to:172.17.0.5:22
2 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:8080 to:172.17.0.9:80
3 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:3307 to:172.17.0.15:3306
4 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:9090 to:172.17.0.30:80
5 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:50070 to:172.17.0.42:50070
6 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:19888 to:172.17.0.42:19888
7 DNAT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:8088 to:172.17.0.42:8088
北大青鳥APTECH成立于1999年。依托北京大學(xué)優(yōu)質(zhì)雄厚的教育資源和背景,秉承“教育改變生活”的發(fā)展理念,致力于培養(yǎng)中國(guó)IT技能型緊缺人才,是大數(shù)據(jù)專業(yè)的國(guó)家
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