int gtmsource_changelog(void)
{
uint4 changelog_desired = 0, changelog_accepted = 0;
int log_fd = 0; /*used to indicate whether the new specified log file is writable*/
int close_status = 0; /*used to indicate if log file is successfully closed*/
char* err_code;
int save_errno;
assert(holds_sem[SOURCE][JNL_POOL_ACCESS_SEM]);
repl_log(stderr, TRUE, TRUE, "Initiating CHANGELOG operation on source server pid [%d] for secondary instance [%s]\n",
jnlpool.gtmsource_local->gtmsource_pid, jnlpool.gtmsource_local->secondary_instname);
if (0 != jnlpool.gtmsource_local->changelog)
{
util_out_print("Change log is already in progress. Not initiating change in log file or log interval", TRUE);
return (ABNORMAL_SHUTDOWN);
}
if ('\0' != gtmsource_options.log_file[0]) /* trigger change in log file */
{
changelog_desired |= REPLIC_CHANGE_LOGFILE;
if (0 != STRCMP(jnlpool.gtmsource_local->log_file, gtmsource_options.log_file))
{ /*check if the new log file is writable*/
OPENFILE3_CLOEXEC(gtmsource_options.log_file,
O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, log_fd);
if (log_fd < 0)
{
save_errno = ERRNO;
err_code = STRERROR(save_errno);
gtm_putmsg_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_REPLLOGOPN, 6,
LEN_AND_STR(gtmsource_options.log_file),
LEN_AND_STR(err_code),
LEN_AND_STR(NULL_DEVICE));
} else {
CLOSEFILE_IF_OPEN(log_fd, close_status);
assert(close_status==0);
changelog_accepted |= REPLIC_CHANGE_LOGFILE;
STRCPY(jnlpool.gtmsource_local->log_file, gtmsource_options.log_file);
util_out_print("Change log initiated with file !AD", TRUE, LEN_AND_STR(gtmsource_options.log_file));
}
} else
util_out_print("Log file is already !AD. Not initiating change in log file", TRUE,
LEN_AND_STR(gtmsource_options.log_file));
}
if (0 != gtmsource_options.src_log_interval) /* trigger change in log interval */
{
changelog_desired |= REPLIC_CHANGE_LOGINTERVAL;
if (gtmsource_options.src_log_interval != jnlpool.gtmsource_local->log_interval)
{
changelog_accepted |= REPLIC_CHANGE_LOGINTERVAL;
jnlpool.gtmsource_local->log_interval = gtmsource_options.src_log_interval;
util_out_print("Change log initiated with interval !UL", TRUE, gtmsource_options.src_log_interval);
} else
util_out_print("Log interval is already !UL. Not initiating change in log interval", TRUE,
gtmsource_options.src_log_interval);
}
if (0 != changelog_accepted)
jnlpool.gtmsource_local->changelog = changelog_accepted;
else
util_out_print("No change to log file or log interval", TRUE);
return ((0 != changelog_accepted && changelog_accepted == changelog_desired) ? NORMAL_SHUTDOWN : ABNORMAL_SHUTDOWN);
}
int gtmsource_mode_change(int to_mode)
{
uint4 savepid;
int exit_status;
int status, detach_status, remove_status;
int log_fd = 0, close_status = 0;
char* err_code;
int save_errno;
sgmnt_addrs *repl_csa;
assert(holds_sem[SOURCE][JNL_POOL_ACCESS_SEM]);
repl_log(stdout, TRUE, TRUE, "Initiating %s operation on source server pid [%d] for secondary instance [%s]\n",
(GTMSOURCE_MODE_ACTIVE_REQUESTED == to_mode) ? "ACTIVATE" : "DEACTIVATE",
jnlpool.gtmsource_local->gtmsource_pid, jnlpool.gtmsource_local->secondary_instname);
if ((jnlpool.gtmsource_local->mode == GTMSOURCE_MODE_ACTIVE_REQUESTED)
|| (jnlpool.gtmsource_local->mode == GTMSOURCE_MODE_PASSIVE_REQUESTED))
{
repl_log(stderr, FALSE, TRUE, "Source Server %s already requested, not changing mode\n",
(to_mode == GTMSOURCE_MODE_ACTIVE_REQUESTED) ? "ACTIVATE" : "DEACTIVATE");
return (ABNORMAL_SHUTDOWN);
}
if (((GTMSOURCE_MODE_ACTIVE == jnlpool.gtmsource_local->mode) && (GTMSOURCE_MODE_ACTIVE_REQUESTED == to_mode))
|| ((GTMSOURCE_MODE_PASSIVE == jnlpool.gtmsource_local->mode) && (GTMSOURCE_MODE_PASSIVE_REQUESTED == to_mode)))
{
repl_log(stderr, FALSE, TRUE, "Source Server already %s, not changing mode\n",
(to_mode == GTMSOURCE_MODE_ACTIVE_REQUESTED) ? "ACTIVE" : "PASSIVE");
return (ABNORMAL_SHUTDOWN);
}
assert(ROOTPRIMARY_UNSPECIFIED != gtmsource_options.rootprimary);
/*check if the new log file is writable*/
if ('\0' != gtmsource_options.log_file[0] && 0 != STRCMP(jnlpool.gtmsource_local->log_file, gtmsource_options.log_file))
{
OPENFILE3(gtmsource_options.log_file,
O_RDWR | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, log_fd);
if (log_fd < 0) {
save_errno = ERRNO;
err_code = STRERROR(save_errno);
gtm_putmsg_csa(CSA_ARG(NULL) VARLSTCNT(8) ERR_REPLLOGOPN, 6,
LEN_AND_STR(gtmsource_options.log_file),
LEN_AND_STR(err_code),
LEN_AND_STR(NULL_DEVICE));
return (ABNORMAL_SHUTDOWN);
}
CLOSEFILE_IF_OPEN(log_fd, close_status);
assert(close_status==0);
}
if ((GTMSOURCE_MODE_ACTIVE_REQUESTED == to_mode)
&& (ROOTPRIMARY_SPECIFIED == gtmsource_options.rootprimary) && jnlpool.jnlpool_ctl->upd_disabled)
{ /* ACTIVATE is specified with ROOTPRIMARY on a journal pool that was created with PROPAGATEPRIMARY. This is a
* case of transition from propagating primary to root primary. Enable updates in this journal pool and append
* a histinfo record to the replication instance file. The function "gtmsource_rootprimary_init" does just that.
*/
gtmsource_rootprimary_init(jnlpool.jnlpool_ctl->jnl_seqno);
}
DEBUG_ONLY(repl_csa = &FILE_INFO(jnlpool.jnlpool_dummy_reg)->s_addrs;)
