Ведомому не удается подключиться к мастеру и запустить TaskTracker или Датододу в Hadoop
Я работаю с 2-х узловым полностью распределенным кластером hadoop. Я пытаюсь подключить TaskTracker для запуска на подчиненном узле, но он не может подключиться к моим портам 9000/9001. Ниже приведены файлы конфигурации, поэтому, если кто-то что-то заметит, пожалуйста, кричите!
Сообщение об ошибке из Tasktracker (запущено с использованием start-all на главном компьютере)
2012-12-19 09:33:03,161 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties from hadoop-metrics2.properties
2012-12-19 09:33:03,316 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source MetricsSystem,sub=Stats registered.
2012-12-19 09:33:03,320 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled snapshot period at 10 second(s).
2012-12-19 09:33:03,320 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: TaskTracker metrics system started
2012-12-19 09:33:03,888 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source ugi registered.
2012-12-19 09:33:04,502 INFO org.mortbay.log: Logging to org.slf4j.impl.Log4jLoggerAdapter(org.mortbay.log) via org.mortbay.log.Slf4jLog
2012-12-19 09:33:04,755 INFO org.apache.hadoop.http.HttpServer: Added global filtersafety (class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
2012-12-19 09:33:04,799 INFO org.apache.hadoop.mapred.TaskLogsTruncater: Initializing logs' truncater with mapRetainSize=-1 and reduceRetainSize=-1
2012-12-19 09:33:04,807 INFO org.apache.hadoop.mapred.TaskTracker: Starting tasktracker with owner as hadoop
2012-12-19 09:33:04,813 INFO org.apache.hadoop.mapred.TaskTracker: Good mapred local directories are: /tmp/hadoop-hadoop/mapred/local
2012-12-19 09:33:04,826 INFO org.apache.hadoop.util.NativeCodeLoader: Loaded the native-hadoop library
2012-12-19 09:33:04,856 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source jvm registered.
2012-12-19 09:33:04,857 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source TaskTrackerMetrics registered.
2012-12-19 09:33:04,920 INFO org.apache.hadoop.ipc.Server: Starting SocketReader
2012-12-19 09:33:04,923 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source RpcDetailedActivityForPort38644 registered.
2012-12-19 09:33:04,926 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for source RpcActivityForPort38644 registered.
2012-12-19 09:33:04,929 INFO org.apache.hadoop.ipc.Server: IPC Server Responder: starting
2012-12-19 09:33:04,931 INFO org.apache.hadoop.ipc.Server: IPC Server listener on 38644: starting
2012-12-19 09:33:04,931 INFO org.apache.hadoop.ipc.Server: IPC Server handler 0 on 38644: starting
2012-12-19 09:33:04,932 INFO org.apache.hadoop.ipc.Server: IPC Server handler 1 on 38644: starting
2012-12-19 09:33:04,932 INFO org.apache.hadoop.ipc.Server: IPC Server handler 2 on 38644: starting
2012-12-19 09:33:04,933 INFO org.apache.hadoop.ipc.Server: IPC Server handler 3 on 38644: starting
2012-12-19 09:33:04,935 INFO org.apache.hadoop.mapred.TaskTracker: TaskTracker up at: localhost/127.0.0.1:38644
2012-12-19 09:33:04,935 INFO org.apache.hadoop.mapred.TaskTracker: Starting tracker tracker_10.77.26.116:localhost/127.0.0.1:38644
2012-12-19 09:33:05,980 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 0 time(s).
2012-12-19 09:33:06,982 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 1 time(s).
2012-12-19 09:33:07,985 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 2 time(s).
2012-12-19 09:33:08,987 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 3 time(s).
2012-12-19 09:33:09,989 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 4 time(s).
2012-12-19 09:33:10,991 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 5 time(s).
2012-12-19 09:33:11,994 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 6 time(s).
2012-12-19 09:33:12,996 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 7 time(s).
2012-12-19 09:33:13,998 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 8 time(s).
2012-12-19 09:33:15,001 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 9 time(s).
2012-12-19 09:33:15,004 INFO org.apache.hadoop.ipc.RPC: Server at ipdiscovermaster.cloudapp.net/168.63.72.148:9001 not available yet, Zzzzz...
2012-12-19 09:33:17,009 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 0 time(s).
2012-12-19 09:33:18,011 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 1 time(s).
2012-12-19 09:33:19,013 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 2 time(s).
2012-12-19 09:33:20,015 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 3 time(s).
2012-12-19 09:33:21,018 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 4 time(s).
2012-12-19 09:33:22,020 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 5 time(s).
2012-12-19 09:33:23,022 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 6 time(s).
2012-12-19 09:33:24,026 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 7 time(s).
2012-12-19 09:33:25,033 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 8 time(s).
2012-12-19 09:33:26,036 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 9 time(s).
2012-12-19 09:33:26,039 INFO org.apache.hadoop.ipc.RPC: Server at ipdiscovermaster.cloudapp.net/168.63.72.148:9001 not available yet, Zzzzz...
2012-12-19 09:33:28,044 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 0 time(s).
2012-12-19 09:33:29,045 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 1 time(s).
2012-12-19 09:33:30,048 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 2 time(s).
2012-12-19 09:33:31,051 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 3 time(s).
2012-12-19 09:33:32,055 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 4 time(s).
2012-12-19 09:33:33,057 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 5 time(s).
2012-12-19 09:33:34,060 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 6 time(s).
2012-12-19 09:33:35,063 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 7 time(s).
2012-12-19 09:33:36,071 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 8 time(s).
2012-12-19 09:33:37,073 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 9 time(s).
2012-12-19 09:33:37,083 INFO org.apache.hadoop.ipc.RPC: Server at ipdiscovermaster.cloudapp.net/168.63.72.148:9001 not available yet, Zzzzz...
2012-12-19 09:33:39,086 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 0 time(s).
2012-12-19 09:33:40,094 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 1 time(s).
2012-12-19 09:33:41,097 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 2 time(s).
2012-12-19 09:33:42,101 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 3 time(s).
2012-12-19 09:33:43,104 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 4 time(s).
2012-12-19 09:33:44,107 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 5 time(s).
2012-12-19 09:33:45,113 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 6 time(s).
2012-12-19 09:33:46,118 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 7 time(s).
2012-12-19 09:33:47,122 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 8 time(s).
2012-12-19 09:33:48,131 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 9 time(s).
2012-12-19 09:33:48,134 INFO org.apache.hadoop.ipc.RPC: Server at ipdiscovermaster.cloudapp.net/168.63.72.148:9001 not available yet, Zzzzz...
2012-12-19 09:33:50,137 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 0 time(s).
2012-12-19 09:33:51,140 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 1 time(s).
2012-12-19 09:33:52,143 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 2 time(s).
2012-12-19 09:33:53,145 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 3 time(s).
2012-12-19 09:33:54,148 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 4 time(s).
2012-12-19 09:33:55,151 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 5 time(s).
2012-12-19 09:33:56,154 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 6 time(s).
2012-12-19 09:33:57,158 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 7 time(s).
2012-12-19 09:33:58,161 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 8 time(s).
2012-12-19 09:33:59,167 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 9 time(s).
2012-12-19 09:33:59,169 INFO org.apache.hadoop.ipc.RPC: Server at ipdiscovermaster.cloudapp.net/168.63.72.148:9001 not available yet, Zzzzz...
2012-12-19 09:34:01,173 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 0 time(s).
2012-12-19 09:34:02,175 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 1 time(s).
2012-12-19 09:34:03,178 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 2 time(s).
2012-12-19 09:34:04,181 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 3 time(s).
2012-12-19 09:34:05,183 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 4 time(s).
2012-12-19 09:34:06,189 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 5 time(s).
2012-12-19 09:34:07,191 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 6 time(s).
2012-12-19 09:34:08,193 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 7 time(s).
2012-12-19 09:34:09,195 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 8 time(s).
2012-12-19 09:34:10,196 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 9 time(s).
2012-12-19 09:34:10,199 INFO org.apache.hadoop.ipc.RPC: Server at ipdiscovermaster.cloudapp.net/168.63.72.148:9001 not available yet, Zzzzz...
2012-12-19 09:34:12,203 INFO org.apache.hadoop.ipc.Client: Retrying connect to server: ipdiscovermaster.cloudapp.net/168.63.72.148:9001. Already tried 0 time(s).
Файл MASTER hosts
#127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
#::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
#10.77.42.2 ipdiscovermaster.cloudapp.net
ipdiscoverreg1.cloudapp.net
#10.76.174.108 ipdiscoverreg1.cloudapp.net
ipdiscovermaster.cloudapp.net
MASTER core-site.xml
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://ipdiscovermaster.cloudapp.net:9000</value>
</property>
</configuration>
МАСТЕР mapred-site.xml
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>ipdiscovermaster.cloudapp.net:9001</value>
</property>
</configuration>
Мастер-файл мастера
ipdiscovermaster.cloudapp.net
MASTER ведомый файл
ipdiscovermaster.cloudapp.net
ipdiscoverreg1.cloudapp.net
SLAVE hosts-файл
#127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
#::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
#10.77.42.2 ipdiscovermaster.cloudapp.net
ipdiscoverreg1.cloudapp.net
ipdiscovermaster.cloudapp.net
#10.76.174.108 ipdiscoverreg1.cloudapp.net
РАБ ядро-site.xml
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://ipdiscovermaster.cloudapp.net:9000</value>
</property>
</configuration>
РАБ mapred-site.xml
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>ipdiscovermaster.cloudapp.net:9001</value>
</property>
</configuration>
РАБ мастеров
ipdiscovermaster.cloudapp.net
3 ответа
Вам необходимо проверить следующие возможности
Забавно, у вас есть журнал проверки на Датоде ( 192.168.135.111 slave01), который является лучшим способом получить точную ошибку
Если вы отформатировали nameNode
i)delete temp data folder ..
ii)recreate it
iii)give all the permission to temp folder
iv)format namenode
v)start hadoop cluster
У меня была похожая проблема с этим. журналы просто показывают "повторная попытка подключения к серверу XXX". Вот что я сделал, чтобы решить эту проблему. Просто измените главные и подчиненные узлы /etc/hosts файлы, в частности, его собственное имя хоста и соответствующий IP. Не связывайте имя хоста с 127.0.0.1:
оригинальный файл hosts в master:
127.0.0.1 master
192.168.135.111 slave01
оригинальный файл hosts в ведомом устройстве:
192.168.135.110 master
127.0.0.1 slave01
Разрешенный файл hosts в master:
**192.168.135.110** master
192.168.135.111 slave
Разрешить файл hosts в ведомом устройстве:
192.168.135.110 master
**192.168.135.111** slave
Добавьте IP-адрес и имя хоста ведомого в файл / etc / hosts основного компьютера и наоборот. также добавьте свойства dfs.data.dir и dfs.name.dir в ваш файл hdfs-site.xml. эти значения по умолчанию равны / temp, который очищается при перезапуске. в результате вы можете потерять информацию и столкнуться с некоторыми проблемами при перезапуске машины. убедитесь, что у вас есть правильное разрешение имен, так как это действительно важно для правильного функционирования hadoop.