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Commit Graph

36 Commits

Author SHA1 Message Date
David Steele
b0b5989aca Migrate remote archive-get command to C.
All required protocol commands are implemented so this is mostly a matter of enabling the feature and updating expect logs.
2019-02-20 22:57:18 +02:00
David Steele
73be64ce49 Add separate archive-get-async command.
This command was previously forked off from the archive-get command which required a bit of artificial option and log manipulation.

A separate command is easier to test and will work on platforms that don't have fork(), e.g. Windows.
2019-02-20 15:52:07 +02:00
David Steele
d038b9a029 Support configurable WAL segment size.
PostgreSQL 11 introduces configurable WAL segment sizes, from 1MB to 1GB.

There are two areas that needed to be updated to support this: building the archive-get queue and checking that WAL has been archived after a backup.  Both operations require the WAL segment size to properly build a list.

Checking the archive after a backup is still implemented in Perl and has an active database connection, so just get the WAL segment size from the database.

The archive-get command does not have a connection to the database, so get the WAL segment size from pg_control instead.  This requires a deeper inspection of pg_control than has been done in the past, so it seemed best to copy the relevant data structures from each version of PostgreSQL and build a generic interface layer to address them.  While this approach is a bit verbose, it has the advantage of being relatively simple, and can easily be updated for new versions of PostgreSQL.

Since the integration tests generate pg_control files for testing, teach Perl how to generate files with the correct offsets for both 32-bit and 64-bit architectures.
2018-09-25 10:24:42 +01:00
Cynthia Shang
b6b2c915b2 Allow hashSize() to run on remote storage.
Apparently we never needed to run this function remotely.

It will be needed by the backup checksum delta feature, so implement it now.

Contributed by Cynthia Shang.
2018-09-18 11:39:48 -04:00
David Steele
9e574a37dc Make archive-get info messages consistent between C and Perl implementations.
The info messages were spread around and logged differently based on the execution path and in some cases logged nothing at all.

Temporarily track the async server status with a flag so that info messages are not output in the async process.  The async process will be refactored as a separate command to be exec'd in a future commit.
2018-09-11 12:30:48 -04:00
Cynthia Shang
e351b8c67c Improve info command to display the stanza cipher type.
Contributed by Cynthia Shang.
Suggested by Douglas J Hunley.
2018-09-10 13:09:45 -04:00
David Steele
d41570c37a Improve log file names for remote processes started by locals.
The log-subprocess feature added in 22765670 failed to take into account the naming for remote processes spawned by local processes.  Not only was the local command used for the naming of log files but the process id was not pass through.  This meant every remote log was named "[stanza]-local-remote-000" which is confusing and meant multiple processes were writing to the same log.

Instead, pass the real command and process id to the remote.  This required a minor change in locking to ignore locks if process id is greater than 0 since remotes started by locals never lock.
2018-08-31 11:31:13 -04:00
David Steele
2276567027 Add log-subprocess option to allow file logging for local and remote subprocesses. 2018-08-22 20:05:49 -04:00
David Steele
52bc073234 Add stack trace macros to all functions.
Low-level functions only include stack trace in test builds while higher-level functions ship with stack trace built-in. Stack traces include all parameters passed to the function but production builds only create the parameter list when the log level is set high enough, i.e. debug or trace depending on the function.
2018-05-18 11:57:32 -04:00
David Steele
91be372e6a Set log-timestamp=n for integration tests.
This means less filtering of logs needs to be done and new timestamps can be added without adding new filters.
2018-05-11 11:24:38 -04:00
David Steele
54dd6f3ed4 Add asynchronous, parallel archive-get.
This feature maintains a queue of WAL segments to help reduce latency when PostgreSQL requests a WAL segment with restore_command.
2018-04-30 17:27:39 -04:00
David Steele
89d3476e32 Refactor archive common functions in preparation for parallel async archive-get. 2018-04-29 10:16:59 -04:00
David Steele
79b7552940 Rename archive-queue-max option to archive-push-queue-max.
This avoids confusion with the archive-get-queue-max option. The old option name will continue to be accepted.
2018-04-18 19:37:35 -04:00
David Steele
0381945caa Show command parameters as well as command options in initial info message. 2018-04-17 18:47:14 -04:00
David Steele
f0250dab4b Move async forking and more error handling to C.
The Perl process was exiting directly when called but that interfered with proper locking for the forked async process. Now Perl returns results to the C process which handles all errors, including signals.
2018-04-12 20:42:26 -04:00
David Steele
6fd0c3dcaa Improved lock implementation written in C.
Now only two types of locks can be taken: archive and backup. Most commands use one or the other but the stanza-* commands acquire both locks. This provides better protection than the old command-based locking scheme.
2018-04-11 09:36:12 -04:00
Cynthia Shang
dd31ae832d Port most of Config::Config::configLoad() from Perl to C.
Contributed by Cynthia Shang.
2018-03-12 11:25:20 -04:00
David Steele
64a7196cb6 Rename retention-* options to repo-retention-*. 2018-02-19 15:07:24 -05:00
David Steele
d35757c05f Fix missing log-level-stderr option for stanza-* commands. 2018-02-05 15:19:28 -05:00
David Steele
db21b7a360 Cleanup usage of internal options.
Apply internal to options that need to be read to determine locality but should not appear in the help.
2018-02-05 11:50:09 -05:00
David Steele
be90028100 Rename db-* options to pg-* and backup-* options to repo-* to improve consistency.
* repo-* options are now indexed although only one is allowed.
* List deprecated option names in documentation and command-line help.
2018-02-03 18:27:38 -05:00
Cynthia Shang
dc73abdb6e Improve stanza-create command so that it does not error when the stanza already exists.
Contributed by Cynthia Shang.
2018-02-01 14:12:03 -05:00
David Steele
a91a648019 Config parsing no longer implemented in Perl.
Options are passed to Perl as JSON from the C process.
2018-01-28 21:37:09 -05:00
David Steele
1f39a34abc Move lock release later in exitSafe().
This reduce the chance of a new process starting and acquiring a lock before the old process has exited.
2018-01-17 10:31:21 -05:00
Cynthia Shang
0e9ba98a50 Add stanza-delete command to cleanup unused stanzas.
Contributed by Cynthia Shang.
2018-01-03 12:23:33 -05:00
David Steele
c77fc1fa61 Refactor protocol param generation into a new function.
This allows the code to be tested more precisely and doesn't require executing a remote process.
2017-11-21 12:57:00 -05:00
David Steele
8a3425ec04 Automate generation of WAL and pg_control test files.
The existing static files would not work with 32-bit or big-endian systems so create functions to generate these files dynamically rather than creating a bunch of new static files.
2017-11-18 20:02:54 -05:00
David Steele
6ef2167e97 Fixed an issue retrieving WAL for old database versions.
After a stanza-upgrade it should still be possible to restore backups from the previous version and perform recovery with archive-get. However, archive-get only checked the most recent db version/id and failed.

Also clean up some issues when the same db version/id appears multiple times in the history.

Fixed by Cynthia Shang.
Reported by Clinton Adams.
2017-11-16 17:18:51 -05:00
Cynthia Shang
b03c26968a Repository encryption support.
Contributed by Cynthia Shang.
2017-11-06 12:51:12 -05:00
David Steele
ac542788da Convert configuration definitions from auto-generated functions to auto-generated data structures. 2017-11-02 08:14:13 -04:00
David Steele
8674a4f7ae Allow functions with sensitive options to be logged at debug level with redactions.
Previously, functions with sensitive options had to be logged at trace level to avoid exposing them. Trace level logging may still expose secrets so use with caution.
2017-10-24 12:35:36 -04:00
David Steele
d82fe88031 Fix custom settings for compress-level option being ignored.
Reported by Jens Wilke.
2017-10-22 18:05:46 -04:00
David Steele
e1cb9ae86a Improve labeling for errors in helper processes. 2017-10-21 14:40:14 -04:00
Cynthia Shang
2d56de00fc Fix instances where database-id was not rendered as an integer in JSON info output.
Fixed by Cynthia Shang.
Reported by Jason O'Donnell.
2017-10-18 08:42:32 -04:00
David Steele
1e0ed07455 Configuration rules are now pulled from the C library when present. 2017-08-25 16:47:47 -04:00
Cynthia Shang
b6da509c9f Consolidate stanza-create and stanza-upgrade tests into new stanza test.
Contributed by Cynthia Shang.
2017-08-04 16:10:51 -04:00