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Add archive_mode='always' option.

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In 'always' mode, the standby independently archives all files it receives
from the primary.

Original patch by Fujii Masao, docs and review by me.
This commit is contained in:
Heikki Linnakangas
2015-05-15 18:55:24 +03:00
parent f6d65f0c70
commit ffd37740ee
9 changed files with 133 additions and 29 deletions
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22
src/backend/access/transam/xlog.c
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@ -86,7 +86,7 @@ int min_wal_size = 5; /* 80 MB */
int wal_keep_segments = 0;
int XLOGbuffers = -1;
int XLogArchiveTimeout = 0;
bool XLogArchiveMode = false;
int XLogArchiveMode = ARCHIVE_MODE_OFF;
char *XLogArchiveCommand = NULL;
bool EnableHotStandby = false;
bool fullPageWrites = true;
@ -140,6 +140,24 @@ const struct config_enum_entry sync_method_options[] = {
{NULL, 0, false}
};
/*
* Although only "on", "off", and "always" are documented,
* we accept all the likely variants of "on" and "off".
*/
const struct config_enum_entry archive_mode_options[] = {
{"always", ARCHIVE_MODE_ALWAYS, false},
{"on", ARCHIVE_MODE_ON, false},
{"off", ARCHIVE_MODE_OFF, false},
{"true", ARCHIVE_MODE_ON, true},
{"false", ARCHIVE_MODE_OFF, true},
{"yes", ARCHIVE_MODE_ON, true},
{"no", ARCHIVE_MODE_OFF, true},
{"1", ARCHIVE_MODE_ON, true},
{"0", ARCHIVE_MODE_OFF, true},
{NULL, 0, false}
};
/*
* Statistics for current checkpoint are collected in this global struct.
* Because only the checkpointer or a stand-alone backend can perform
@ -767,7 +785,7 @@ static MemoryContext walDebugCxt = NULL;
#endif
static void readRecoveryCommandFile(void);
static void exitArchiveRecovery(TimeLineID endTLI, XLogSegNo endLogSegNo);
static void exitArchiveRecovery(TimeLineID endTLI, XLogRecPtr endOfLog);
static bool recoveryStopsBefore(XLogReaderState *record);
static bool recoveryStopsAfter(XLogReaderState *record);
static void recoveryPausesHere(void);