95
99
Used for debugging; Use at your own risk!
97
--gdb Set up signals usable for debugging
98
-L [ --language ] arg (IGNORED)
99
--lc-time-name arg Set the language used for the month
100
names and the days of the week.
101
-W [ --log-warnings ] arg Log some not critical warnings to the
103
--pid-file arg Pid file used by drizzled.
104
--port-open-timeout arg (=0) Maximum time in seconds to wait for the
105
port to become free. (Default: no wait)
106
--secure-file-priv arg Limit LOAD DATA, SELECT ... OUTFILE,
107
and LOAD_FILE() to files within
109
--server-id arg (=0) Uniquely identifies the server instance
110
in the community of replication
112
--skip-stack-trace Don't print a stack trace on failure.
113
-s [ --symbolic-links ] Enable symbolic link support.
114
--timed-mutexes Specify whether to time mutexes (only
115
InnoDB mutexes are currently supported)
116
-t [ --tmpdir ] arg Path for temporary files.
117
--transaction-isolation arg Default transaction isolation level.
118
-u [ --user ] arg Run drizzled daemon as user.
119
-V [ --version ] Output version information and exit.
120
--back-log arg (=50) The number of outstanding connection
121
requests Drizzle can have. This comes
122
into play when the main Drizzle thread
123
gets very many connection requests in a
125
--bulk-insert-buffer-size arg (=8388608)
126
Size of tree cache used in bulk insert
127
optimization. Note that this is a limit
129
--div-precision-increment arg (=4) Precision of the result of '/' operator
130
will be increased on that value.
131
--group-concat-max-len arg (=1024) The maximum length of the result of
132
function group_concat.
133
--join-buffer-size arg (=131072) The size of the buffer that is used for
135
--max-allowed-packet arg (=1048576) Max packetlength to send/receive from
137
--max-connect-errors arg (=10) If there is more than this number of
138
interrupted connections from a host
139
this host will be blocked from further
141
--max-error-count arg (=64) Max number of errors/warnings to store
143
--max-heap-table-size arg (=16777216) Don't allow creation of heap tables
145
--max-join-size arg (=2147483647) Joins that are probably going to read
146
more than max_join_size records return
148
--max-length-for-sort-data arg (=1024)
149
Max number of bytes in sorted records.
150
--max-seeks-for-key arg (=18446744073709551615)
151
Limit assumed max number of seeks when
152
looking up rows based on a key
153
--max-sort-length arg (=1024) The number of bytes to use when sorting
154
BLOB or TEXT values (only the first
155
max_sort_length bytes of each value are
156
used; the rest are ignored).
157
--max-write-lock-count arg (=18446744073709551615)
158
After this many write locks, allow some
159
read locks to run in between.
160
--min-examined-row-limit arg (=0) Don't log queries which examine less
161
than min_examined_row_limit rows to
163
--disable-optimizer-prune Do not apply any heuristic(s) during
164
query optimization to prune, thus
165
perform an exhaustive search from the
166
optimizer search space.
167
--optimizer-search-depth arg (=0) Maximum depth of search performed by
168
the query optimizer. Values larger than
169
the number of relations in a query
170
result in better query plans, but take
171
longer to compile a query. Smaller
172
values than the number of tables in a
173
relation result in faster optimization,
174
but may produce very bad query plans.
175
If set to 0, the system will
176
automatically pick a reasonable value;
177
if set to MAX_TABLES+2, the optimizer
178
will switch to the original find_best
179
(used for testing/comparison).
180
--preload-buffer-size arg (=32768) The size of the buffer that is
181
allocated when preloading indexes
182
--query-alloc-block-size arg (=8192) Allocation block size for query parsing
184
--query-prealloc-size arg (=8192) Persistent buffer for query parsing and
186
--range-alloc-block-size arg (=4096) Allocation block size for storing
187
ranges during optimization
188
--read-buffer-size arg (=131072) Each thread that does a sequential scan
189
allocates a buffer of this size for
190
each table it scans. If you do many
191
sequential scans, you may want to
193
--read-rnd-buffer-size arg (=262144) When reading rows in sorted order after
194
a sort, the rows are read through this
195
buffer to avoid a disk seeks. If not
196
set, then it's set to the value of
198
--scheduler arg Select scheduler to be used (by default
200
--sort-buffer-size arg (=2097144) Each thread that needs to do a sort
201
allocates a buffer of this size.
202
--table-definition-cache arg (=128) The number of cached table definitions.
203
--table-open-cache arg (=1024) The number of cached open tables.
204
--table-lock-wait-timeout arg (=50) Timeout in seconds to wait for a table
205
level lock before returning an error.
206
Used only if the connection has active
208
--thread-stack arg (=0) The stack size for each thread.
209
--tmp-table-size arg (=16777216) If an internal in-memory temporary
210
table exceeds this size, Drizzle will
211
automatically convert it to an on-disk
103
Set up signals usable for debugging
105
.. option:: --lc-time-name arg
107
Set the language used for the month names and the days of the week.
109
.. option:: -W [ --log-warnings ] arg
111
Log some not critical warnings to the log file.
113
.. Why is this a core argument?
114
.. option:: --port-open-timeout arg (=0)
116
Maximum time in seconds to wait for the port to become free.
117
A value of 0 means not to wait.
119
.. option:: --secure-file-priv arg
121
Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to files within
124
.. Why is this still here?
125
.. option:: --server-id arg (=0)
127
Uniquely identifies the server instance in the community of replication
130
.. option:: --skip-stack-trace
132
Don't print a stack trace on failure.
134
.. option:: -s,--symbolic-links
136
Enable symbolic link support.
138
.. option:: --timed-mutexes
140
Specify whether to time mutexes (only InnoDB mutexes are currently supported)
142
.. option:: -t,--tmpdir arg
144
Path for temporary files.
146
.. option:: --transaction-isolation arg
148
Default transaction isolation level.
150
.. option:: -u,--user arg
152
Run drizzled daemon as user.
154
.. option:: -V,--version
156
Output version information and exit.
158
.. option:: --back-log arg (=50)
160
The number of outstanding connection requests Drizzle can have. This comes
161
into play when the main Drizzle thread gets very many connection requests in
164
.. option:: --bulk-insert-buffer-size arg (=8388608)
166
Size of tree cache used in bulk insert optimization. Note that this is a limit
169
.. option:: --div-precision-increment arg (=4)
171
Precision of the result of '/' operator will be increased on that value.
173
.. option:: --group-concat-max-len arg (=1024)
175
The maximum length of the result of function group_concat.
177
.. option:: --join-buffer-size arg (=131072)
179
The size of the buffer that is used for full joins.
181
.. Why is this a core arg?
182
.. option:: --max-allowed-packet arg (=1M)
184
Max packetlength to send/receive from to server.
186
.. option:: --max-connect-errors arg (=10)
188
If there is more than this number of interrupted connections from a host
189
this host will be blocked from further connections.
191
.. option:: --max-error-count arg (=64)
193
Max number of errors/warnings to store for a statement.
195
.. option:: --max-heap-table-size arg (=16M)
197
Don't allow creation of heap tables bigger than this.
199
.. option:: --max-join-size arg (=2147483647)
201
Joins that are probably going to read more than max_join_size records return
204
.. option:: --max-length-for-sort-data arg (=1024)
206
Max number of bytes in sorted records.
208
.. option:: --max-seeks-for-key arg (=18446744073709551615)
210
Limit assumed max number of seeks when looking up rows based on a key
212
.. option:: --max-sort-length arg (=1024)
214
The number of bytes to use when sorting BLOB or TEXT values (only the first
215
max_sort_length bytes of each value are used; the rest are ignored).
217
.. option:: --max-write-lock-count arg (=18446744073709551615)
219
After this many write locks, allow some read locks to run in between.
221
.. option:: --min-examined-row-limit arg (=0)
223
Don't log queries which examine less than min_examined_row_limit rows to file.
225
.. option:: --disable-optimizer-prune
227
Do not apply any heuristic(s) during query optimization to prune, thus
228
perform an exhaustive search from the optimizer search space.
230
.. option:: --optimizer-search-depth arg (=0)
232
Maximum depth of search performed by the query optimizer. Values larger than
233
the number of relations in a query result in better query plans, but take
234
longer to compile a query. Smaller values than the number of tables in a
235
relation result in faster optimization, but may produce very bad query plans.
236
If set to 0, the system will automatically pick a reasonable value; if set to
237
MAX_TABLES+2, the optimizer will switch to the original find_best (used for
240
.. option:: --preload-buffer-size arg (=32768)
242
The size of the buffer that is allocated when preloading indexes
244
.. option:: --query-alloc-block-size arg (=8192)
246
Allocation block size for query parsing and execution
248
.. option:: --query-prealloc-size arg (=8192)
250
Persistent buffer for query parsing and execution
252
.. option:: --range-alloc-block-size arg (=4096)
254
Allocation block size for storing ranges during optimization
256
.. option:: --read-buffer-size arg (=131072)
258
Each thread that does a sequential scan allocates a buffer of this size for
259
each table it scans. If you do many sequential scans, you may want to
262
.. option:: --read-rnd-buffer-size arg (=262144)
264
When reading rows in sorted order after a sort, the rows are read through
265
this buffer to avoid a disk seeks. If not set, then it's set to the value of
268
.. option:: --scheduler arg (=multi-thread)
270
Select scheduler to be used.
272
.. option:: --sort-buffer-size arg (=2097144)
274
Each thread that needs to do a sort allocates a buffer of this size.
276
.. option:: --table-definition-cache arg (=128)
278
The number of cached table definitions.
280
.. option:: --table-open-cache arg (=1024)
282
The number of cached open tables.
284
.. option:: --table-lock-wait-timeout arg (=50)
286
Timeout in seconds to wait for a table level lock before returning an error.
287
Used only if the connection has active cursors.
289
.. option:: --thread-stack arg (=0)
291
The stack size for each thread. 0 means use OS default.
293
.. option:: --tmp-table-size arg (=16M)
295
If an internal in-memory temporary table exceeds this size, Drizzle will
296
automatically convert it to an on-disk MyISAM table.