Hi, start-dfs.sh can start multiple services (including namenode/datanode/...) on multiple hosts. Systemd usually manages single services on localhost.
I would create separated systemd units for namenode/datanode/... etc. and use 'hdfs namenode', 'hdfs datanode' commands. Marton On 11/13/18 8:06 AM, xiang....@iluvatar.ai.INVALID wrote: > Hi! > > I use systemd to control hdfs service, when reboot, i find below issue: > > 11月 13 14:47:58 test-storage.novalocal start-dfs.sh[1915]: Starting > namenodes on [test-storage.novalocal] > 11月 13 14:48:03 test-storage.novalocal start-dfs.sh[1915]: > test-storage.novalocal: starting namenode, logging to > /home/hdfs/hadoop/logs/hadoop-hdfs-namenode-test-storage.novalocal.ou > 11月 13 14:48:06 test-storage.novalocal start-dfs.sh[1915]: > 192.168.0.17: ssh: connect to host 192.168.0.17 port 22: No route to host > 11月 13 14:48:07 test-storage.novalocal start-dfs.sh[1915]: > 192.168.0.16: starting datanode, logging to > /home/hdfs/hadoop/logs/hadoop-hdfs-datanode-test-storage.novalocal.out > 11月 13 14:48:09 test-storage.novalocal start-dfs.sh[1915]: Starting > secondary namenodes [0.0.0.0] > 11月 13 14:48:14 test-storage.novalocal start-dfs.sh[1915]: 0.0.0.0: > starting secondarynamenode, logging to > /home/hdfs/hadoop/logs/hadoop-hdfs-secondarynamenode-test-storage.novaloc > 11月 13 14:48:16 test-storage.novalocal systemd[1]: Started skydiscovery > hdfs service. > > The start-dfs.sh return 0 while one datanode still can not ssh. > > Does there any param to control start-dfs.sh exit 1 in this case? > > Or is there any better way to control hdfs service with systemd? > > Thanks --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@hadoop.apache.org For additional commands, e-mail: user-h...@hadoop.apache.org
