Added --warnings to mysqld
Docs/manual.texi: Changelog sql/mysql_priv.h: Added --warnings sql/mysqld.cc: Added --warnings sql/sql_parse.cc: Added --warnings
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@ -10531,6 +10531,9 @@ Run @code{mysqld} daemon as user @code{user_name}. This option is
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@item -V, --version
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Output version information and exit.
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@item -W, --warnings
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Print out warnings like @code{Aborted connection...} to the @code{.err} file.
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@xref{Communication errors}.
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@end table
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@cindex default options
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@ -25795,8 +25798,8 @@ in its own lock table and rolls back the transaction. If you use
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than InnoDB in the same transaction, then a deadlock may arise which
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InnoDB cannot notice. In cases like this the timeout is useful to
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resolve the situation.
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@item @code{innodb_unix_file_flush_method} @tab
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(Available from 3.23.39 up.)
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@item @code{innodb_flush_method} @tab
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(Available from 3.23.40 up.)
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The default value for this is @code{fdatasync}.
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Another option is @code{O_DSYNC}.
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Options @code{littlesync} and @code{nosync} have the
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@ -26406,7 +26409,7 @@ In some versions of Linux and Unix, flushing files to disk with the Unix
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@code{fdatasync} and other similar methods is surprisingly slow.
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The default method InnoDB uses is the @code{fdatasync} function.
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If you are not satisfied with the database write performance, you may
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try setting @code{innodb_unix_file_flush_method} in @file{my.cnf}
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try setting @code{innodb_flush_method} in @file{my.cnf}
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to @code{O_DSYNC}, though O_DSYNC seems to be slower on most systems.
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You can also try setting it to @code{littlesync}, which means that
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InnoDB does not call the file flush for every write it does to a
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@ -38212,6 +38215,9 @@ option.
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@node Communication errors, Full table, Packet too large, Common errors
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@subsection Communication Errors / Aborted Connection
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Starting with @code{MySQL 3.23.40} you only get the @code{Aborted
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connection} error of you start @code{mysqld} with @code{--warnings}.
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If you find errors like the following in your error log.
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@example
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@ -46298,6 +46304,16 @@ Our TODO section contains what we plan to have in 4.0. @xref{TODO MySQL 4.0}.
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Added support for symbolic links to @code{MyISAM} tables. Symlink handling is
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now enabled by default for Windows.
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@item
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@code{LOAD DATA FROM MASTER} "auto-magically" sets up a slave.
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@item
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A new @code{HANDLER} interface to @code{MyISAM} tables.
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@item
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@code{COUNT(DISTINCT)} is about 30% faster.
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@item
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Creating full text indexes are now much faster.
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@item
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Searching on packed (@code{CHAR}/@code{VARCHAR}) keys are now much faster.
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@item
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Added @code{SQL_CALC_FOUND_ROWS} and @code{FOUND_ROWS()}. This makes it
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possible to know how many rows a query would have returned
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without a @code{LIMIT} clause.
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@ -46406,6 +46422,12 @@ not yet 100% confident in this code.
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@appendixsubsec Changes in release 3.23.40
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@itemize @bullet
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@item
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Added option @code{--warnings} to @code{mysqld}. Now @code{mysqld}
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only prints the error @code{Aborted connection} if this option is used.
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@item
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Fixed properly the rename of @code{innodb_unix_file_flush_method} to
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@code{innodb_flush_method}.
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@item
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Fixed bug when converting @code{UNSIGNED BIGINT} to @code{DOUBLE}. This caused
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a problem when doing comparisons with @code{BIGINT}'s outside of the
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signed range.
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@ -533,7 +533,7 @@ extern ulong keybuff_size,sortbuff_size,max_item_sort_length,table_cache_size,
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binlog_cache_size, max_binlog_cache_size;
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extern ulong specialflag, current_pid;
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extern bool low_priority_updates, using_update_log;
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extern bool opt_sql_bin_update, opt_safe_show_db;
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extern bool opt_sql_bin_update, opt_safe_show_db, opt_warnings;
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extern char language[LIBLEN],reg_ext[FN_EXTLEN],blob_newline;
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extern const char **errmesg; /* Error messages */
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extern const char *default_tx_isolation_name;
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@ -210,7 +210,7 @@ static char mysql_home[FN_REFLEN],pidfile_name[FN_REFLEN];
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static pthread_t select_thread;
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static bool opt_log,opt_update_log,opt_bin_log,opt_slow_log,opt_noacl,
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opt_disable_networking=0, opt_bootstrap=0,opt_skip_show_db=0,
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opt_ansi_mode=0,opt_myisam_log=0,
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opt_ansi_mode=0,opt_myisam_log=0,
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opt_large_files=sizeof(my_off_t) > 4;
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bool opt_sql_bin_update = 0, opt_log_slave_updates = 0, opt_safe_show_db=0;
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FILE *bootstrap_file=0;
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@ -275,7 +275,7 @@ ulong max_tmp_tables,max_heap_table_size;
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ulong bytes_sent = 0L, bytes_received = 0L;
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bool opt_endinfo,using_udf_functions,low_priority_updates, locked_in_memory;
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bool opt_using_transactions, using_update_log;
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bool opt_using_transactions, using_update_log, opt_warnings=0;
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bool volatile abort_loop,select_thread_in_use,grant_option;
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bool volatile ready_to_exit,shutdown_in_progress;
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ulong refresh_version=1L,flush_version=1L; /* Increments on each reload */
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@ -2455,7 +2455,7 @@ enum options {
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OPT_INNODB_LOG_ARCH_DIR,
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OPT_INNODB_LOG_ARCHIVE,
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OPT_INNODB_FLUSH_LOG_AT_TRX_COMMIT,
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OPT_INNODB_UNIX_FILE_FLUSH_METHOD,
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OPT_innodb_flush_method,
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OPT_SAFE_SHOW_DB,
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OPT_GEMINI_SKIP, OPT_INNODB_SKIP,
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OPT_TEMP_POOL, OPT_TX_ISOLATION,
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@ -2516,7 +2516,7 @@ static struct option long_options[] = {
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OPT_INNODB_LOG_ARCHIVE},
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{"innodb_flush_log_at_trx_commit", optional_argument, 0,
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OPT_INNODB_FLUSH_LOG_AT_TRX_COMMIT},
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{"innodb_unix_file_flush_method", required_argument, 0,
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{"innodb_flush_method", required_argument, 0,
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OPT_INNODB_UNIX_FILE_FLUSH_METHOD},
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#endif
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{"help", no_argument, 0, '?'},
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@ -2603,6 +2603,7 @@ static struct option long_options[] = {
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#endif
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{"user", required_argument, 0, 'u'},
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{"version", no_argument, 0, 'V'},
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{"warnings", no_argument, 0, 'W'},
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{0, 0, 0, 0}
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};
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@ -2796,7 +2797,7 @@ struct show_var_st init_vars[]= {
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{"innodb_log_arch_dir", (char*) &innobase_log_arch_dir, SHOW_CHAR_PTR},
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{"innodb_log_archive", (char*) &innobase_log_archive, SHOW_MY_BOOL},
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{"innodb_log_group_home_dir", (char*) &innobase_log_group_home_dir, SHOW_CHAR_PTR},
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{"innodb_unix_file_flush_method", (char*) &innobase_unix_file_flush_method, SHOW_CHAR_PTR},
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{"innodb_flush_method", (char*) &innobase_unix_file_flush_method, SHOW_CHAR_PTR},
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#endif
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{"interactive_timeout", (char*) &net_interactive_timeout, SHOW_LONG},
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{"join_buffer_size", (char*) &join_buff_size, SHOW_LONG},
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@ -3033,7 +3034,8 @@ static void usage(void)
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Default transaction isolation level\n\
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--temp-pool Use a pool of temporary files\n\
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-u, --user=user_name Run mysqld daemon as user\n\
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-V, --version output version information and exit");
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-V, --version output version information and exit\n\
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-W, --warnings Log some not critical warnings to the log file\n");
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#ifdef __WIN__
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puts("NT and Win32 specific options:\n\
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--console Don't remove the console window\n\
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@ -3073,7 +3075,7 @@ static void usage(void)
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puts("\
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--innodb_data_home_dir=dir The common part for Innodb table spaces\n\
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--innodb_data_file_path=dir Path to individual files and their sizes\n\
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--innodb_unix_file_flush_method=# With which method to flush data\n\
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--innodb_flush_method=# With which method to flush data\n\
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--innodb_flush_log_at_trx_commit[=#]\n\
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Set to 0 if you don't want to flush logs\n\
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--innodb_log_arch_dir=dir Where full logs should be archived\n\
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@ -3167,7 +3169,7 @@ static void get_options(int argc,char **argv)
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int c,option_index=0;
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myisam_delay_key_write=1; // Allow use of this
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while ((c=getopt_long(argc,argv,"ab:C:h:#::T::?l::L:O:P:sS::t:u:noVvI?",
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while ((c=getopt_long(argc,argv,"ab:C:h:#::T::?l::L:O:P:sS::t:u:noVvWI?",
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long_options, &option_index)) != EOF)
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{
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switch(c) {
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@ -3177,6 +3179,9 @@ static void get_options(int argc,char **argv)
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#endif
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opt_endinfo=1; /* unireg: memory allocation */
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break;
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case 'W':
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opt_warnings=1;
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break;
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case 'a':
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opt_ansi_mode=1;
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thd_startup_options|=OPTION_ANSI_MODE;
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@ -554,6 +554,7 @@ pthread_handler_decl(handle_one_connection,arg)
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free_root(&thd->mem_root,MYF(0));
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if (net->error && net->vio != 0)
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{
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if (!thd->killed && ! opt_warnings)
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sql_print_error(ER(ER_NEW_ABORTING_CONNECTION),
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thd->thread_id,(thd->db ? thd->db : "unconnected"),
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thd->user ? thd->user : "unauthenticated",
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