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神器gpssh-exkeys 是greenplum-db-4.3.8.2-build-1-RHEL5-x86_64 里面的一个命令。

Exchanges SSH public keys between hosts https://github.com/apache/incubator-hawq/blob/master/tools/bin/gpssh-exkeys

http://hdb.docs.pivotal.io/130/docs-hawq/docs-hawq-shared/utility_guide/admin_utilities/gpssh-exkeys.html

新版本是hawq ssh-exkeys http://hdb.docs.pivotal.io/211/hawq/reference/cli/admin_utilities/hawqssh-exkeys.html

功能:许多机器之间相互互信

1安装 ./greenplum-db-4.3.8.2-build-1-RHEL5-x86_64.bin

一路默认,yes

路径在 /usr/local/greenplum-db-4.3.8.2

########## 或者复制已经安装好的,自己单独提取命令,做个简洁版

tar -xvf gpssh-exkeys-v2.tar -C /usr/local/

chmod -R 777 /usr/local/greenplum-db-4.3.8.2/ #############

2然后执行

source /usr/local/greenplum-db-4.3.8.2/greenplum_path.sh

3 配置好所有机器的

vi /etc/hosts

比如

192.168.184.73 test73

192.168.184.74 test74

4 在安装了greenplum-db的机器上,新增一个文件,只要写主机名 就行了

比如 vi /tmp/hosts_all

test73

test74

5 ssh互信 gpssh-exkeys --version

gpssh-exkeys -f /tmp/hosts_all

6 卸载 rm -rf /usr/local/greenplum-db-4.3.8.2

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