原 Greenplum数据库端口和协议
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列出Greenplum集群内使用的网络端口和协议。
Greenplum数据库客户端用TCP在客户端连接端口（默认为5432）上连接到Greenplum的Master实例。这个监听端口可以在 postgresql.conf配置文件中重新配置。客户端连接使用PostgreSQL的libpq API。 psql命令行接口、一些Greenplum工具以及特定语言的编程API也将直接使用libpq库或者在内部实现libpq协议。
每一个Segment实例也有一个客户端连接端口，它被Master实例单独用来与Segment协调数据库操作。在Greenplum的Master上执行的gpstate -p命令，会列出Greenplum的Master以及主Segment和镜像Segment的端口分配。例如：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | [gpadmin@mdw ~]$ gpstate -p 20190403:02:57:04:011030 gpstate:mdw:gpadmin-[INFO]:-Starting gpstate with args: -p 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:-local Greenplum Version: 'postgres (Greenplum Database) 5.17.0 build commit:fc9a9d4cad8dd4037b9bc07bf837c0b958726103' 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:-master Greenplum Version: 'PostgreSQL 8.3.23 (Greenplum Database 5.17.0 build commit:fc9a9d4cad8dd4037b9bc07bf837c0b958726103) on x86_64-pc-linux-gnu, compiled by GCC gcc (GCC) 6.2.0, 64-bit compiled on Feb 13 2019 15:26:34' 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:-Obtaining Segment details from master... 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:--Master segment instance /data/master/gpseg-1 port = 5432 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:--Segment instance port assignments 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:----------------------------------- 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- Host Datadir Port 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw1 /data/primary/gpseg0 20000 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw2 /data/mirror/gpseg0 21000 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw1 /data/primary/gpseg1 20001 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw2 /data/mirror/gpseg1 21001 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw1 /data/primary/gpseg2 20002 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw2 /data/mirror/gpseg2 21002 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw2 /data/primary/gpseg3 20000 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw3 /data/mirror/gpseg3 21000 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw2 /data/primary/gpseg4 20001 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw3 /data/mirror/gpseg4 21001 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw2 /data/primary/gpseg5 20002 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw3 /data/mirror/gpseg5 21002 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw3 /data/primary/gpseg6 20000 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw1 /data/mirror/gpseg6 21000 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw3 /data/primary/gpseg7 20001 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw1 /data/mirror/gpseg7 21001 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw3 /data/primary/gpseg8 20002 20190403:02:57:05:011030 gpstate:mdw:gpadmin-[INFO]:- sdw1 /data/mirror/gpseg8 21002 |
使用如下SQL也可以查询：
1 | select d."content",d."role",d.address,d.port,d.datadir from gp_segment_configuration d order by 1,2 desc; |
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