Github user stanlyxiang commented on the issue:
https://github.com/apache/incubator-hawq/pull/1071
@radarwave In my investigate, I found that hawq read these GUCs from a
config file which set these values when init, since there is no database to
store them before init. Maybe no one config / show them using hawq config or
they use option "--skipValidation". No one change and no one hit this problem,
only some warnings exist in logs. No function read "dfs_url"
"master_directory" "seg_directory".
But RM function sendIMAlive() will use "standby_addr_host" and I haven't
found the reason. Maybe @jiny2 knows why.
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