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Replace "transaction log" with "write-ahead log"

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This makes documentation and error messages match the renaming of "xlog"
to "wal" in APIs and file naming.
This commit is contained in:
Peter Eisentraut
2017-05-12 11:49:56 -04:00
parent 56b6ef893f
commit c1a7f64b4a
34 changed files with 157 additions and 160 deletions
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31
src/backend/access/transam/xlog.c
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@ -1,7 +1,7 @@
/*-------------------------------------------------------------------------
*
* xlog.c
* PostgreSQL transaction log manager
* PostgreSQL write-ahead log manager
*
*
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
@ -3532,7 +3532,7 @@ XLogFileOpen(XLogSegNo segno)
if (fd < 0)
ereport(PANIC,
(errcode_for_file_access(),
errmsg("could not open transaction log file \"%s\": %m", path)));
errmsg("could not open write-ahead log file \"%s\": %m", path)));
return fd;
}
@ -3838,7 +3838,7 @@ RemoveOldXlogFiles(XLogSegNo segno, XLogRecPtr PriorRedoPtr, XLogRecPtr endptr)
if (xldir == NULL)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not open transaction log directory \"%s\": %m",
errmsg("could not open write-ahead log directory \"%s\": %m",
XLOGDIR)));
/*
@ -3913,7 +3913,7 @@ RemoveNonParentXlogFiles(XLogRecPtr switchpoint, TimeLineID newTLI)
if (xldir == NULL)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not open transaction log directory \"%s\": %m",
errmsg("could not open write-ahead log directory \"%s\": %m",
XLOGDIR)));
/*
@ -3994,7 +3994,7 @@ RemoveXlogFile(const char *segname, XLogRecPtr PriorRedoPtr, XLogRecPtr endptr)
true, recycleSegNo, true))
{
ereport(DEBUG2,
(errmsg("recycled transaction log file \"%s\"",
(errmsg("recycled write-ahead log file \"%s\"",
segname)));
CheckpointStats.ckpt_segs_recycled++;
/* Needn't recheck that slot on future iterations */
@ -4006,7 +4006,7 @@ RemoveXlogFile(const char *segname, XLogRecPtr PriorRedoPtr, XLogRecPtr endptr)
int rc;
ereport(DEBUG2,
(errmsg("removing transaction log file \"%s\"",
(errmsg("removing write-ahead log file \"%s\"",
segname)));
#ifdef WIN32
@ -4026,7 +4026,7 @@ RemoveXlogFile(const char *segname, XLogRecPtr PriorRedoPtr, XLogRecPtr endptr)
{
ereport(LOG,
(errcode_for_file_access(),
errmsg("could not rename old transaction log file \"%s\": %m",
errmsg("could not rename old write-ahead log file \"%s\": %m",
path)));
return;
}
@ -4108,7 +4108,7 @@ CleanupBackupHistory(void)
if (xldir == NULL)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not open transaction log directory \"%s\": %m",
errmsg("could not open write-ahead log directory \"%s\": %m",
XLOGDIR)));
while ((xlde = ReadDir(xldir, XLOGDIR)) != NULL)
@ -4117,9 +4117,8 @@ CleanupBackupHistory(void)
{
if (XLogArchiveCheckDone(xlde->d_name))
{
ereport(DEBUG2,
(errmsg("removing transaction log backup history file \"%s\"",
xlde->d_name)));
elog(DEBUG2, "removing WAL backup history file \"%s\"",
xlde->d_name);
snprintf(path, sizeof(path), XLOGDIR "/%s", xlde->d_name);
unlink(path);
XLogArchiveCleanup(xlde->d_name);
@ -5074,7 +5073,7 @@ BootStrapXLOG(void)
errno = ENOSPC;
ereport(PANIC,
(errcode_for_file_access(),
errmsg("could not write bootstrap transaction log file: %m")));
errmsg("could not write bootstrap write-ahead log file: %m")));
}
pgstat_report_wait_end();
@ -5082,13 +5081,13 @@ BootStrapXLOG(void)
if (pg_fsync(openLogFile) != 0)
ereport(PANIC,
(errcode_for_file_access(),
errmsg("could not fsync bootstrap transaction log file: %m")));
errmsg("could not fsync bootstrap write-ahead log file: %m")));
pgstat_report_wait_end();
if (close(openLogFile))
ereport(PANIC,
(errcode_for_file_access(),
errmsg("could not close bootstrap transaction log file: %m")));
errmsg("could not close bootstrap write-ahead log file: %m")));
openLogFile = -1;
@ -8432,7 +8431,7 @@ LogCheckpointEnd(bool restartpoint)
average_usecs = average_sync_time - (uint64) average_secs *1000000;
elog(LOG, "%s complete: wrote %d buffers (%.1f%%); "
"%d transaction log file(s) added, %d removed, %d recycled; "
"%d WAL file(s) added, %d removed, %d recycled; "
"write=%ld.%03d s, sync=%ld.%03d s, total=%ld.%03d s; "
"sync files=%d, longest=%ld.%03d s, average=%ld.%03d s; "
"distance=%d kB, estimate=%d kB",
@ -8842,7 +8841,7 @@ CreateCheckPoint(int flags)
*/
if (shutdown && checkPoint.redo != ProcLastRecPtr)
ereport(PANIC,
(errmsg("concurrent transaction log activity while database system is shutting down")));
(errmsg("concurrent write-ahead log activity while database system is shutting down")));
/*
* Remember the prior checkpoint's redo pointer, used later to determine