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Add configuration file parameter "config_directory"

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This enables explicit provision of an external configuration file
directory, which if set will be passed to "pg_ctl" as the -D
parameter. Otherwise "pg_ctl" will default to using the data directory,
which will cause some operations to fail if the configuration files
are not present there.

Note this is implemented primarily for feature completeness and for
development/testing purposes. Users who have installed "repmgr" from
a package should not rely on "pg_ctl" to stop/start/restart PostgreSQL,
instead they should set the appropriate "service_..._command" for their
operating system. For more details see:

    https://repmgr.org/docs/4.0/configuration-service-commands.html

Note: in a future release, the presence of "config_directory" in repmgr.conf
will be used to implictly set "--copy-external-config-files=samepath" when
cloning a standby; this is a behaviour change so will be implemented in the
next major realease (repmgr 4.1).

Implements GitHub #424.
This commit is contained in:
Ian Barwick
2018-04-25 11:49:22 +09:00
parent 7822aa784f
commit 8320179f34
7 changed files with 63 additions and 10 deletions
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1
repmgr-client-global.h
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@@ -231,6 +231,7 @@ extern void print_help_header(void);
/* server control functions */
extern void get_server_action(t_server_action action, char *script, char *data_dir);
extern bool data_dir_required_for_action(t_server_action action);
extern void get_node_config_directory(char *config_dir_buf);
extern void get_node_data_directory(char *data_dir_buf);
extern void init_node_record(t_node_info *node_record);
extern bool can_use_pg_rewind(PGconn *conn, const char *data_directory, PQExpBufferData *reason);