Greenplum failed to start, cdbtm.c:1529

problem description

failure at startup after greenplum installation is completed
prompt: DTM initialization: failure during startup recovery, retry failed, check segment status (cdbtm.c:1529)

the platform version of the problem and what methods you have tried

I have turned off iptables and firewall

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has now solved the problem by re-attaching the / data directory to a hard drive.

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