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MDEV-329: MariaDB 5.5 does not use fdatasync().

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The --debug-no-sync incorrectly defaulted to ON, disabling sync calls
by default which can loose data or cause corruption. Also, the code
used fsync() instead of the sometimes more efficient fdatasync().
This commit is contained in:
unknown 2012-06-08 11:18:56 +02:00
parent 8efc63ba5d
commit cb6109cde1
2 changed files with 2 additions and 1 deletions
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1
config.h.cmake
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@ -150,6 +150,7 @@
#cmakedefine HAVE_FCNTL 1
#cmakedefine HAVE_FCONVERT 1
#cmakedefine HAVE_FDATASYNC 1
#cmakedefine HAVE_DECL_FDATASYNC 1
#cmakedefine HAVE_FESETROUND 1
#cmakedefine HAVE_FINITE 1
#cmakedefine HAVE_FP_EXCEPT 1

2
sql/mysqld.cc
View file

@ -6161,7 +6161,7 @@ struct my_option my_long_options[]=
#endif
{"debug-no-sync", 0,
"Disables system sync calls. Only for running tests or debugging!",
&my_disable_sync, &my_disable_sync, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0},
&my_disable_sync, &my_disable_sync, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
#ifdef HAVE_REPLICATION
{"debug-sporadic-binlog-dump-fail", 0,
"Option used by mysql-test for debugging and testing of replication.",