From a36a8fa376631e59d006772bcd30f4f827d7e6b9 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Wed, 2 Jul 2014 21:07:47 +0200 Subject: [PATCH] Rename logical decoding's pg_llog directory to pg_logical. The old name wasn't very descriptive as of actual contents of the directory, which are historical snapshots in the snapshots/ subdirectory and mappingdata for rewritten tuples in mappings/. There's been a fair amount of discussion what would be a good name. I'm settling for pg_logical because it's likely that further data around logical decoding and replication will need saving in the future. Also add the missing entry for the directory into storage.sgml's list of PGDATA contents. Bumps catversion as the data directories won't be compatible. --- doc/src/sgml/storage.sgml | 5 +++++ src/backend/access/heap/rewriteheap.c | 10 +++++----- .../replication/logical/reorderbuffer.c | 6 +++--- src/backend/replication/logical/snapbuild.c | 20 +++++++++---------- src/bin/initdb/initdb.c | 6 +++--- src/include/catalog/catversion.h | 2 +- 6 files changed, 27 insertions(+), 22 deletions(-) diff --git a/doc/src/sgml/storage.sgml b/doc/src/sgml/storage.sgml index 330e385aa3..4c7fb6c6fa 100644 --- a/doc/src/sgml/storage.sgml +++ b/doc/src/sgml/storage.sgml @@ -77,6 +77,11 @@ Item subsystem + + pg_logical + Subdirectory containing status data for logical decoding + + pg_multixact Subdirectory containing multitransaction status data diff --git a/src/backend/access/heap/rewriteheap.c b/src/backend/access/heap/rewriteheap.c index 687e76e6db..0fc9266e8b 100644 --- a/src/backend/access/heap/rewriteheap.c +++ b/src/backend/access/heap/rewriteheap.c @@ -1009,7 +1009,7 @@ logical_rewrite_log_mapping(RewriteState state, TransactionId xid, dboid = MyDatabaseId; snprintf(path, MAXPGPATH, - "pg_llog/mappings/" LOGICAL_REWRITE_FORMAT, + "pg_logical/mappings/" LOGICAL_REWRITE_FORMAT, dboid, relid, (uint32) (state->rs_begin_lsn >> 32), (uint32) state->rs_begin_lsn, @@ -1133,7 +1133,7 @@ heap_xlog_logical_rewrite(XLogRecPtr lsn, XLogRecord *r) xlrec = (xl_heap_rewrite_mapping *) XLogRecGetData(r); snprintf(path, MAXPGPATH, - "pg_llog/mappings/" LOGICAL_REWRITE_FORMAT, + "pg_logical/mappings/" LOGICAL_REWRITE_FORMAT, xlrec->mapped_db, xlrec->mapped_rel, (uint32) (xlrec->start_lsn >> 32), (uint32) xlrec->start_lsn, @@ -1219,8 +1219,8 @@ CheckPointLogicalRewriteHeap(void) if (cutoff != InvalidXLogRecPtr && redo < cutoff) cutoff = redo; - mappings_dir = AllocateDir("pg_llog/mappings"); - while ((mapping_de = ReadDir(mappings_dir, "pg_llog/mappings")) != NULL) + mappings_dir = AllocateDir("pg_logical/mappings"); + while ((mapping_de = ReadDir(mappings_dir, "pg_logical/mappings")) != NULL) { struct stat statbuf; Oid dboid; @@ -1235,7 +1235,7 @@ CheckPointLogicalRewriteHeap(void) strcmp(mapping_de->d_name, "..") == 0) continue; - snprintf(path, MAXPGPATH, "pg_llog/mappings/%s", mapping_de->d_name); + snprintf(path, MAXPGPATH, "pg_logical/mappings/%s", mapping_de->d_name); if (lstat(path, &statbuf) == 0 && !S_ISREG(statbuf.st_mode)) continue; diff --git a/src/backend/replication/logical/reorderbuffer.c b/src/backend/replication/logical/reorderbuffer.c index 12960f4997..3f5c241d95 100644 --- a/src/backend/replication/logical/reorderbuffer.c +++ b/src/backend/replication/logical/reorderbuffer.c @@ -2788,7 +2788,7 @@ ApplyLogicalMappingFile(HTAB *tuplecid_data, Oid relid, const char *fname) int readBytes; LogicalRewriteMappingData map; - sprintf(path, "pg_llog/mappings/%s", fname); + sprintf(path, "pg_logical/mappings/%s", fname); fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0); if (fd < 0) ereport(ERROR, @@ -2908,8 +2908,8 @@ UpdateLogicalMappings(HTAB *tuplecid_data, Oid relid, Snapshot snapshot) size_t off; Oid dboid = IsSharedRelation(relid) ? InvalidOid : MyDatabaseId; - mapping_dir = AllocateDir("pg_llog/mappings"); - while ((mapping_de = ReadDir(mapping_dir, "pg_llog/mappings")) != NULL) + mapping_dir = AllocateDir("pg_logical/mappings"); + while ((mapping_de = ReadDir(mapping_dir, "pg_logical/mappings")) != NULL) { Oid f_dboid; Oid f_relid; diff --git a/src/backend/replication/logical/snapbuild.c b/src/backend/replication/logical/snapbuild.c index 196c188033..3319497603 100644 --- a/src/backend/replication/logical/snapbuild.c +++ b/src/backend/replication/logical/snapbuild.c @@ -1452,7 +1452,7 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn) * unless the user used pg_resetxlog or similar. If a user did so, there's * no hope continuing to decode anyway. */ - sprintf(path, "pg_llog/snapshots/%X-%X.snap", + sprintf(path, "pg_logical/snapshots/%X-%X.snap", (uint32) (lsn >> 32), (uint32) lsn); /* @@ -1478,7 +1478,7 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn) * be safely on disk. */ fsync_fname(path, false); - fsync_fname("pg_llog/snapshots", true); + fsync_fname("pg_logical/snapshots", true); builder->last_serialized_snapshot = lsn; goto out; @@ -1494,7 +1494,7 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn) elog(DEBUG1, "serializing snapshot to %s", path); /* to make sure only we will write to this tempfile, include pid */ - sprintf(tmppath, "pg_llog/snapshots/%X-%X.snap.%u.tmp", + sprintf(tmppath, "pg_logical/snapshots/%X-%X.snap.%u.tmp", (uint32) (lsn >> 32), (uint32) lsn, MyProcPid); /* @@ -1580,7 +1580,7 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn) } CloseTransientFile(fd); - fsync_fname("pg_llog/snapshots", true); + fsync_fname("pg_logical/snapshots", true); /* * We may overwrite the work from some other backend, but that's ok, our @@ -1596,7 +1596,7 @@ SnapBuildSerialize(SnapBuild *builder, XLogRecPtr lsn) /* make sure we persist */ fsync_fname(path, false); - fsync_fname("pg_llog/snapshots", true); + fsync_fname("pg_logical/snapshots", true); /* * Now there's no way we can loose the dumped state anymore, remember this @@ -1627,7 +1627,7 @@ SnapBuildRestore(SnapBuild *builder, XLogRecPtr lsn) if (builder->state == SNAPBUILD_CONSISTENT) return false; - sprintf(path, "pg_llog/snapshots/%X-%X.snap", + sprintf(path, "pg_logical/snapshots/%X-%X.snap", (uint32) (lsn >> 32), (uint32) lsn); fd = OpenTransientFile(path, O_RDONLY | PG_BINARY, 0); @@ -1648,7 +1648,7 @@ SnapBuildRestore(SnapBuild *builder, XLogRecPtr lsn) * ---- */ fsync_fname(path, false); - fsync_fname("pg_llog/snapshots", true); + fsync_fname("pg_logical/snapshots", true); /* read statically sized portion of snapshot */ @@ -1825,8 +1825,8 @@ CheckPointSnapBuild(void) if (redo < cutoff) cutoff = redo; - snap_dir = AllocateDir("pg_llog/snapshots"); - while ((snap_de = ReadDir(snap_dir, "pg_llog/snapshots")) != NULL) + snap_dir = AllocateDir("pg_logical/snapshots"); + while ((snap_de = ReadDir(snap_dir, "pg_logical/snapshots")) != NULL) { uint32 hi; uint32 lo; @@ -1837,7 +1837,7 @@ CheckPointSnapBuild(void) strcmp(snap_de->d_name, "..") == 0) continue; - snprintf(path, MAXPGPATH, "pg_llog/snapshots/%s", snap_de->d_name); + snprintf(path, MAXPGPATH, "pg_logical/snapshots/%s", snap_de->d_name); if (lstat(path, &statbuf) == 0 && !S_ISREG(statbuf.st_mode)) { diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c index a25965ce4c..de5cc47077 100644 --- a/src/bin/initdb/initdb.c +++ b/src/bin/initdb/initdb.c @@ -199,9 +199,9 @@ static const char *subdirs[] = { "pg_tblspc", "pg_stat", "pg_stat_tmp", - "pg_llog", - "pg_llog/snapshots", - "pg_llog/mappings" + "pg_logical", + "pg_logical/snapshots", + "pg_logical/mappings" }; diff --git a/src/include/catalog/catversion.h b/src/include/catalog/catversion.h index e7edb34aa3..3efa28f5d4 100644 --- a/src/include/catalog/catversion.h +++ b/src/include/catalog/catversion.h @@ -53,6 +53,6 @@ */ /* yyyymmddN */ -#define CATALOG_VERSION_NO 201406292 +#define CATALOG_VERSION_NO 201407021 #endif