Detection of zombi postmaster is added (NodeStatus.Zombie)#394
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dmitry-lipetsk wants to merge 2 commits into
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Detection of zombi postmaster is added (NodeStatus.Zombie)#394dmitry-lipetsk wants to merge 2 commits into
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When we kill vanila-postmaster (10-18) on remote machine it becomes 'zombie'. pg_ctl says that node is started, by by fact it is not so. Now PostgresNode::status() check a postmaster process status (via /proc/<pid>/stat) and if 'Z' (zombie) is detected, this method returns the a status: NodeStatus.Zombie. Just for info: PG ENT does not have a such problem. Co-authored-by: Mark G. <mark@google.com>
We may catch a zombie during a node stop: "FAILED tests/test_testgres_common.py::TestTestgresCommon::test_pg_ctl_wait_option[local] - Exception: Unexpected node status: 3." It was on astralinux_1_7.
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When we kill vanila-postmaster (10-18) on remote machine it becomes 'zombie'.
pg_ctl says that node is started, by by fact it is not so.
Now
PostgresNode::statuschecks a postmaster process status (via /proc/<pid>/stat) and if 'Z' (zombie) is detected, this method returns a status:NodeStatus.Zombie.Just for info: PG ENT does not have a such problem.