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| author | Andrew Dunstan <andrew@dunslane.net> | 2013-03-24 11:27:20 -0400 |
|---|---|---|
| committer | Andrew Dunstan <andrew@dunslane.net> | 2013-03-24 11:27:20 -0400 |
| commit | 9e257a181cc1dc5e19eb5d770ce09cc98f470f5f (patch) | |
| tree | a2b5c7a40cfe004d4838cd3be32e0177096fafbf /src/bin/pg_dump/pg_backup_tar.c | |
| parent | 3b91fe185a71c05ac4528f93a39ba27232acc9e0 (diff) | |
| download | postgresql-9e257a181cc1dc5e19eb5d770ce09cc98f470f5f.tar.gz postgresql-9e257a181cc1dc5e19eb5d770ce09cc98f470f5f.zip | |
Add parallel pg_dump option.
New infrastructure is added which creates a set number of workers
(threads on Windows, forked processes on Unix). Jobs are then
handed out to these workers by the master process as needed.
pg_restore is adjusted to use this new infrastructure in place of the
old setup which created a new worker for each step on the fly. Parallel
dumps acquire a snapshot clone in order to stay consistent, if
available.
The parallel option is selected by the -j / --jobs command line
parameter of pg_dump.
Joachim Wieland, lightly editorialized by Andrew Dunstan.
Diffstat (limited to 'src/bin/pg_dump/pg_backup_tar.c')
| -rw-r--r-- | src/bin/pg_dump/pg_backup_tar.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/bin/pg_dump/pg_backup_tar.c b/src/bin/pg_dump/pg_backup_tar.c index 03ae4f82bce..6465ac3e6c4 100644 --- a/src/bin/pg_dump/pg_backup_tar.c +++ b/src/bin/pg_dump/pg_backup_tar.c @@ -158,6 +158,12 @@ InitArchiveFmt_Tar(ArchiveHandle *AH) AH->ClonePtr = NULL; AH->DeClonePtr = NULL; + AH->MasterStartParallelItemPtr = NULL; + AH->MasterEndParallelItemPtr = NULL; + + AH->WorkerJobDumpPtr = NULL; + AH->WorkerJobRestorePtr = NULL; + /* * Set up some special context used in compressing data. */ @@ -828,7 +834,7 @@ _CloseArchive(ArchiveHandle *AH) /* * Now send the data (tables & blobs) */ - WriteDataChunks(AH); + WriteDataChunks(AH, NULL); /* * Now this format wants to append a script which does a full restore |