Lines Matching refs:data
13 than reopen them every time they need to store or retrieve data. This
21 There are two kinds of data sent in the memcache protocol: text lines
22 and unstructured data. Text lines are used for commands from clients
23 and responses from servers. Unstructured data is sent when a client
24 wants to store or retrieve data. The server will transmit back
25 unstructured data in exactly the same way it received it, as a byte
27 unstructured data and isn't aware of them. There are no limitations on
28 characters that may appear in unstructured data; however, the reader
29 of such data (either a client or a server) will always know, from a
30 preceding text line, the exact length of the data block being
33 Text lines are always terminated by \r\n. Unstructured data is _also_
35 may also appear inside the data. Therefore, when a client retrieves
36 data from a server, it must use the length of the data block (which it
37 will be provided with) to determine where the data block ends, and not
38 the fact that \r\n follows the end of the data block, even though it
45 is a text string which should uniquely identify the data for clients
57 "prepend" and "cas") ask the server to store some data identified by a
58 key. The client sends a command line, and then a data block; after
63 retrieve data corresponding to a set of keys (one or more keys in one
67 data block with the item's data; this continues until the server
70 All other commands don't involve unstructured data. In all of them,
134 "set" means "store this data".
136 "add" means "store this data, but only if the server *doesn't* already
137 hold data for this key".
139 "replace" means "store this data, but only if the server *does*
140 already hold data for this key".
142 "append" means "add this data to an existing key after existing data".
144 "prepend" means "add this data to an existing key before existing data".
147 They update existing data portions, and ignore new flag and exptime
150 "cas" is a check and set operation which means "store this data but
153 - <key> is the key under which the client asks to store the data
156 decimal) that the server stores along with the data and sends back
158 store data-specific information; this field is opaque to the server.
171 - <bytes> is the number of bytes in the data block to follow, *not*
173 it's followed by an empty data block).
185 After this line, the client sends the data block:
187 <data block>\r\n
189 - <data block> is a chunk of arbitrary 8-bit data of length <bytes>
192 After sending the command line and the data block the client awaits
197 - "NOT_STORED\r\n" to indicate the data was not stored, but not
219 which is received as a text line followed by a data block. After all
229 <data block>\r\n
235 - <bytes> is the length of the data block to follow, *not* including
241 - <data block> is the data for this item.
277 Commands "incr" and "decr" are used to change data for some item
278 in-place, incrementing or decrementing it. The data for the item is
280 the current data value does not conform to such a representation, the
307 - <value>\r\n , where <value> is the new value of the item's data,
517 maintains and other internal data. It has two forms. Without
527 Depending on <args>, various internal data is sent by the server. The
528 kinds of arguments and the data sent are not documented in this version
546 <value> is the data. The following is the list of all names sent in
744 item storage per slab class. The data is returned in the format:
774 recently active your evicted data is.
811 The data is returned in the following format:
866 information along with some totals. The data is returned in the format:
886 | cmd_set | Total number of set requests storing data in this class. |
914 for new connections. The data is returned in the format:
949 | conn_nread | Reading extended data, typically for a command such as |
953 | conn_read | Reading newly-arrived command data. |
960 | | sending back multiple lines of response data). |
1032 Each UDP datagram contains a simple frame header, followed by data in the