Centos7安装greenplum遇到的问题
问题1：gpcheck的时候xfs文件系统报错
20180725:09:02:10:002498 gpcheck:bigdata-3-22:hahahahah-[INFO]:-dedupe hostnames
20180725:09:02:10:002498 gpcheck:bigdata-3-22:hahahahah-[INFO]:-Detected platform: Generic Linux Cluster
20180725:09:02:10:002498 gpcheck:bigdata-3-22:hahahahah-[INFO]:-generate data on servers
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[INFO]:-copy data files from servers
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[INFO]:-delete remote tmp files
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[INFO]:-Using gpcheck config file: /home/hahahahah/greenplum-db/./etc/gpcheck.cnf
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-24): XFS filesystem on device /dev/mapper/cl-root has 6 XFS mount options and 4 are expected
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-24): XFS filesystem on device /dev/mapper/cl-root is missing the recommended mount option 'allocsize=16m'
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-24): XFS filesystem on device /dev/mapper/cl-home has 7 XFS mount options and 4 are expected
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-24): XFS filesystem on device /dev/mapper/cl-home is missing the recommended mount option 'allocsize=16m'
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-24): XFS filesystem on device /dev/sda1 has 7 XFS mount options and 4 are expected
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-24): XFS filesystem on device /dev/sda1 is missing the recommended mount option 'allocsize=16m'
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-24): potential NTPD issue. gpcheck end time (Wed Jul 25 09:02:10 2018) time on machine (Wed Jul 25 09:02:13 2018)
20180725:09:02:11:002498 gpcheck:bigdata-3-22:hahahahah-[ERROR]:-GPCHECK_ERROR host(bigdata-3-23): XFS filesystem on device /dev/mappe
网络解决方法：修改/etc/fstab的配置如下：
/dev/mapper/cl-root / xfs nodev,noatime,nobarrier,inode64,allocsize=16m 0 0
UUID=2d2cd8de-8d11-4cf0-8780-070a806a0fbb /boot xfs nodev,noatime,nobarrier,inode64,allocsize=16m 0 0
/dev/mapper/cl-home /home xfs nodev,noatime,nobarrier,inode64,allocsize=16m 0 0
/dev/mapper/cl-swap swap swap nodev,noatime,inode64,nobarrier,allocsize=16m 0 0
重启不生效！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！
解决办法：修改gpcheck的代码：注释掉一行，绕过XFS mounts检查。
问题2：gp初始化segment节点启动失败，查看日志，问题如下：
20180725:14:15:18:013574 gpcreateseg.sh:bigdata-3-22:iflytek-[WARN]:-Failed to insert port=40000 in /home/hahahah/greenplum/data/primary/gpseg1/postgresql.conf on bigdata-3-24
20180725:14:15:18:013574 gpcreateseg.sh:bigdata-3-22:hahahah-[INFO]:-End Function ED_PG_CONF
20180725:14:15:19:013574 gpcreateseg.sh:bigdata-3-22:hahahahh-[FATAL][1]:-Failed Update port number to 40000
主节点操作不了从节点的文件，因为没有安装ed编辑器ed-1.1-3.3.el6.x86_64。安装完之后，初始化成功。