Verify that if Maria table is absent or initially empty, CREATE SELECT and INSERT SELECT with enough
rows cause no logging

mysql-test/include/maria_empty_logs.inc:
  don't assume that mysqltest is the default db
mysql-test/r/maria-no-logging.result:
  result. Without the optimization of disabling logging in ha_maria::start_bulk_insert(),
  we see 24k instead of 16k, in the cases where the table is empty.
mysql-test/r/maria-purge.result:
  side effect of change to maria_empty_logs.inc
mysql-test/t/maria-purge.test:
  maria-purge.test used to fail when run in a group like this "--big t/*maria*.test" because
  SHOW ENGINE MARIA LOGS was influenced by previous tests; deleting logs to fix that.

http://forge.mysql.com/worklog/task.php?id=4374
new option --maria-force-start-after-recovery-failures=N; number of consecutive recovery failures (failures
of log reading or recovery processing, anything in [translog_init(),maria_recovery_from_log()])
is stored in the control file; if at a Maria start they are more than N, logs are removed. This is for automated
systems which have to run whatever happens. As tables risk staying corrupted, --maria-recover should also
be used on them: this revision makes maria-recover work (it was disabled).
Fixed bug in translog_is_log_files(). translog_init() now prints message to error log if failed.
Removed \0 in the output of SHOW ENGINE MARIA LOGS; removed hard-coded engine name there.

KNOWN_BUGS.txt:
  As option --maria-force-start-after-recovery-failures is added, it corresponds to the wish "we should fix that if this happens etc".
  LOAD INDEX is not ignored since a few weeks. Listed concurrency bugs have been fixed some time ago.
  Recovery of fulltext and GIS indexes works since a few weeks.
mysql-test/include/maria_make_snapshot.inc:
  configurable prefix in table's name (so far 't' or 't_corrupted')
mysql-test/include/maria_make_snapshot_for_comparison.inc:
  configurable prefix in table's name (so far 't' or 't_corrupted')
mysql-test/include/maria_make_snapshot_for_feeding_recovery.inc:
  configurable prefix in table's name (so far 't' or 't_corrupted')
mysql-test/include/maria_verify_recovery.inc:
  configurable prefix in table's name (so far 't' or 't_corrupted')
mysql-test/lib/mtr_report.pl:
  new test maria-recover.test generates expected corruption warnings in the error log. maria-recovery.test's corrupted table is renamed to t_corrupted1 instead of t1.
mysql-test/r/maria-preload.result:
  result update. maria_pagecache_read* values are similar to the previous version of this file, though a bit bigger
  because using the information_schema and the join leads to some internal maria temp table being used, and thus some
  blocks of it being read.
mysql-test/r/maria-purge.result:
  engine's name in SHOW ENGINE MARIA LOGS changed.
mysql-test/r/maria-recover.result:
  result for new test. We see corruption messages at first SELECT and then none at second SELECT, expected.
mysql-test/r/maria-recovery.result:
  result update
mysql-test/r/maria.result:
  new variables show up
mysql-test/t/disabled.def:
  BUG#34911 is not fixed but the test had been made independent of the bug (workaround). A new bug (crash) has popped recently, so it has to stay
  disabled (BUG#35107).
mysql-test/t/maria-preload.test:
  Work around BUG#34911 "FLUSH STATUS doesn't flush what it should":
  compute differences in status variables before and after relevant queries
mysql-test/t/maria-recover-master.opt:
  test --maria-recover
mysql-test/t/maria-recover.test:
  Test of the --maria-recover option (build a corrupted table and see if it is auto-repaired)
mysql-test/t/maria-recovery-big.test:
  update for new API of include/maria*.inc
mysql-test/t/maria-recovery-bitmap.test:
  update for new API of include/maria*.inc
mysql-test/t/maria-recovery.test:
  update for new API of include/maria*.inc. Corrupted table t1 renamed to t_corrupted1, so that mtr_report.pl
  does not blindly remove all corruption messages for t1 which is
  a common name.
storage/maria/ha_maria.cc:
  Enabling maria-recover.
  Adding option and global variable --maria_force_start_after_recovery_failures: ha_maria_init()
  calls mark_recovery_start() and mark_recovery_success() to keep track of failed consecutive recoveries
  and remove logs if needed.
  Removed \0 in the output of SHOW ENGINE MARIA LOGS; removed hard-coded engine name there.
storage/maria/ma_checkpoint.c:
  new prototype
storage/maria/ma_control_file.c:
  Storing in one byte in the control file, the number of consecutive recovery failures.
storage/maria/ma_control_file.h:
  new prototype
storage/maria/ma_init.c:
  new prototype
storage/maria/ma_locking.c:
  Need to update open_count on disk at first write and close for transactional tables, like we already did for
  non-transactional tables, otherwise we cannot notice that the table is dubious.
storage/maria/ma_loghandler.c:
  translog_is_log_files() is made more generic to serve either to search or to delete logs (the latter is
  for --maria-force-start-after-recovery-failures). It also had a bug (always returned FALSE).
storage/maria/ma_loghandler.h:
  export function because ha_maria::mark_recovery_start() needs it
storage/maria/ma_recovery.c:
  changing name of maria_recover() to distinguish from the maria-recover option.
storage/maria/ma_recovery.h:
  changing name of maria_recover() to distinguish from the maria-recover option.
storage/maria/ma_test_force_start.pl:
  Test of --maria-force-start-after-recovery-failures (and also, to be realistic, of --maria-recover).
  This is standalone because mysql-test-run does not support testing that multiple mysqld restarts expectedly failed.
  I'll have to run it on my machine and also on a Windows machine.
storage/maria/unittest/ma_control_file-t.c:
  adding recovery_failures to the test
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
  fix for compiler warning (unused variable in non-debug build)

must be updated correctly. And Recovery should not assume that
log 1 is available but just use first available log.


mysql-test/r/maria-purge.result:
  result update
mysql-test/t/maria-purge.test:
  like in other Maria tests (4294967296 is too big, causes warning)
storage/maria/ma_loghandler.c:
  When log handler starts and discovers that logs are missing though
  control file says they should be there (they have been manually
  deleted), it decides to create a log
  with number last_logno+1. It needs to update control file with
  this new number, and also reset last_checkpoint_lsn to LSN_IMPOSSIBLE
  (last checkpoint went away when log was deleted).
  Fix for when translog_init() fails before allocating id_to_share
  (translog_destroy() tried to free NULL).
storage/maria/ma_recovery.c:
  When logs have been manually deleted, translog_first_theoretical_lsn()
  always fails (it looks for log number 1). Recovery now uses
  translog_first_lsn_in_log() which just picks the first available log.

  switching to new one which prevent deadlock.


mysql-test/r/maria-purge.result:
  Fixed test which use setting maria_checkpoint_interval to force
    checkpoint now.
mysql-test/t/maria-purge.test:
  Fixed test which use setting maria_checkpoint_interval to force
    checkpoint now.

mysql-test/r/maria-big.result:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/r/maria-connect.result:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/r/maria-purge.result:
  Change to make maria-purge more stable.
mysql-test/r/maria.result:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/r/ps_maria.result:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/t/maria-big.test:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/t/maria-connect.test:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/t/maria-purge.test:
  Change to make maria-purge more stable.
mysql-test/t/maria-recovery.test:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/t/maria.test:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.
mysql-test/t/ps_maria.test:
  Change to make maria-purge more stable: increasing file size
    to let all records fit in one log.

support added to maria.


mysql-test/r/maria.result:
  New variables added.
storage/maria/ha_maria.cc:
  Variable for transactional log purge method added.
  Variable for transactional log size added.
  SHOW for engine logs added.
  Log flush purge logs in case of "ondemand" type of
    log processing.
storage/maria/ma_checkpoint.c:
  log purge call enabled.
storage/maria/ma_loghandler.c:
  Support for different methods of log purge added.
  Functions for getting information about logs state added.
  Functions for getting/setting log size.
storage/maria/ma_loghandler.h:
  Fixed defines.
  Functions for for transactional log mannegment added.
storage/maria/ma_recovery.c:
  Dependence on TRANSLOG_FILE_SIZE removed.
mysql-test/r/maria-purge.result:
  New BitKeeper file ``mysql-test/r/maria-purge.result''
mysql-test/t/maria-purge.test:
  New BitKeeper file ``mysql-test/t/maria-purge.test''