/*
* pgarch_ArchiverCopyLoop
*
* Archives all outstanding xlogs then returns
*/
static void
pgarch_ArchiverCopyLoop(void)
{
char xlog[MAX_XFN_CHARS + 1];
if (!XLogArchiveCommandSet())
{
ereport(WARNING,
(errmsg("archive_mode enabled, yet archive_command is not set")));
/* can't do anything if no command ... */
return;
}
/*
* loop through all xlogs with archive_status of .ready and archive
* them...mostly we expect this to be a single file, though it is possible
* some backend will add files onto the list of those that need archiving
* while we are still copying earlier archives
*/
while (pgarch_readyXlog(xlog))
{
int failures = 0;
for (;;)
{
/*
* Do not initiate any more archive commands after receiving
* SIGTERM, nor after the postmaster has died unexpectedly. The
* first condition is to try to keep from having init SIGKILL the
* command, and the second is to avoid conflicts with another
* archiver spawned by a newer postmaster.
*/
if (got_SIGTERM || !PostmasterIsAlive(true))
return;
if (pgarch_archiveXlog(xlog))
{
/* successful */
pgarch_archiveDone(xlog);
break; /* out of inner retry loop */
}
else
{
if (++failures >= NUM_ARCHIVE_RETRIES)
{
ereport(WARNING,
(errmsg("transaction log file \"%s\" could not be archived: too many failures",
xlog)));
return; /* give up archiving for now */
}
pg_usleep(1000000L); /* wait a bit before retrying */
}
}
}
}
/*
* pgarch_ArchiverCopyLoop
*
* Archives all outstanding xlogs then returns
*/
static void
pgarch_ArchiverCopyLoop(void)
{
char xlog[MAX_XFN_CHARS + 1];
/*
* loop through all xlogs with archive_status of .ready and archive
* them...mostly we expect this to be a single file, though it is possible
* some backend will add files onto the list of those that need archiving
* while we are still copying earlier archives
*/
while (pgarch_readyXlog(xlog))
{
int failures = 0;
for (;;)
{
/* Abandon processing if we notice our postmaster has died */
if (!PostmasterIsAlive(true))
return;
if (pgarch_archiveXlog(xlog))
{
/* successful */
pgarch_archiveDone(xlog);
break; /* out of inner retry loop */
}
else
{
if (++failures >= NUM_ARCHIVE_RETRIES)
{
ereport(WARNING,
(errmsg("transaction log file \"%s\" could not be archived: too many failures",
xlog)));
return; /* give up archiving for now */
}
pg_usleep(1000000L); /* wait a bit before retrying */
}
}
}
}
/*
* pgarch_ArchiverCopyLoop
*
* Archives all outstanding xlogs then returns
*/
static void
pgarch_ArchiverCopyLoop(void)
{
char xlog[MAX_XFN_CHARS + 1];
/*
* loop through all xlogs with archive_status of .ready and archive
* them...mostly we expect this to be a single file, though it is possible
* some backend will add files onto the list of those that need archiving
* while we are still copying earlier archives
*/
while (pgarch_readyXlog(xlog))
{
int failures = 0;
for (;;)
{
/*
* Do not initiate any more archive commands after receiving
* SIGTERM, nor after the postmaster has died unexpectedly. The
* first condition is to try to keep from having init SIGKILL the
* command, and the second is to avoid conflicts with another
* archiver spawned by a newer postmaster.
*/
if (got_SIGTERM || !PostmasterIsAlive())
return;
/*
* Check for config update. This is so that we'll adopt a new
* setting for archive_command as soon as possible, even if there
* is a backlog of files to be archived.
*/
if (got_SIGHUP)
{
got_SIGHUP = false;
ProcessConfigFile(PGC_SIGHUP);
}
/* can't do anything if no command ... */
if (!XLogArchiveCommandSet())
{
ereport(WARNING,
(errmsg("archive_mode enabled, yet archive_command is not set")));
return;
}
if (pgarch_archiveXlog(xlog))
{
/* successful */
pgarch_archiveDone(xlog);
/*
* Tell the collector about the WAL file that we successfully
* archived
*/
pgstat_send_archiver(xlog, false);
break; /* out of inner retry loop */
}
else
{
/*
* Tell the collector about the WAL file that we failed to
* archive
*/
pgstat_send_archiver(xlog, true);
if (++failures >= NUM_ARCHIVE_RETRIES)
{
ereport(WARNING,
(errmsg("archiving transaction log file \"%s\" failed too many times, will try again later",
xlog)));
return; /* give up archiving for now */
}
pg_usleep(1000000L); /* wait a bit before retrying */
}
}
}
}