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pg_upgrade: detect stale postmaster.pid lock files

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If the postmaster.pid lock file exists, try starting/stopping the
cluster to check if the lock file is valid.

Per request from Tom.
This commit is contained in:
Bruce Momjian
2013-01-24 15:20:11 -05:00
parent 74ebba84ae
commit a9ceaa53be
5 changed files with 54 additions and 30 deletions
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6
contrib/pg_upgrade/pg_upgrade.h
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@@ -307,7 +307,7 @@ extern OSInfo os_info;
/* check.c */
void output_check_banner(bool *live_check);
void output_check_banner(bool live_check);
void check_and_dump_old_cluster(bool live_check,
char **sequence_script_file_name);
void check_new_cluster(void);
@@ -341,7 +341,7 @@ exec_prog(const char *log_file, const char *opt_log_file,
bool throw_error, const char *fmt,...)
__attribute__((format(PG_PRINTF_ATTRIBUTE, 4, 5)));
void verify_directories(void);
bool is_server_running(const char *datadir);
bool pid_lock_file_exists(const char *datadir);
/* file.c */
@@ -429,7 +429,7 @@ __attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 3)));
char *cluster_conn_opts(ClusterInfo *cluster);
void start_postmaster(ClusterInfo *cluster);
bool start_postmaster(ClusterInfo *cluster, bool throw_error);
void stop_postmaster(bool fast);
uint32 get_major_server_version(ClusterInfo *cluster);
void check_pghost_envvar(void);