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; connection-> sockaddr; iphp-> ADDR = (u_char *) sin6-> sin6_addr.s6_addr; iphp-> addrlen = 16; break; # endif default: iphp-> ADDR = ngx_http_upstream_ip_hash_pseudo do_addr; iphp-> addrlen = 3;} // initialize the hash seed iphp-> hash = 89; // Number of initialization failed attempts iphp-> tries = 0; // function for RR selection-> get_rr_peer = ngx_http_upstream_get_round_assist_peer; return ngx_ OK ;} The structure ngx_http_upstream_ip_hash_peer

example, the first element [T] will repeat until 't' is found in the target string. Then, check whether the followed character can be matched by [O]. If yes, check the following elements (NITE | knight | night ). Its true meaning is "Nite", "Knight", or "night ". The engine tries these three possibilities in sequence. The process of trying [Nite] is to first try [N], then [I], then [T], and finally [e]. If this attempt fails, the engine

threadb are completed? It seems ridiculous. Or s_x = 1 or s_y = 1 will occur first. In this case, other threads will witness this update when starting to process their own updates. At least theoretically. Unfortunately, the processor may re-sort the code at any time to make loading operations more effective before writing. You can use an explicit memory barrier to avoid this problem: Copy code void ThreadA() { s_x = 1; Thread.MemoryBarrier(); s_ya = s_y;}. NET Framework provides a sp

the parameter is omitted, the function returns a list of variables in the local area. If the parameter is not omitted, the function tries to save all valid property names of the parameter object to the list and return to the list.If the object defines the _ DIR _ () method, the method is called and the attribute list is returned. Objects are allowed to customize the properties of objects returned by Dir () by implementing the _ getattr _ () and _ get

utilities dialog box is displayed, from 11 to 2.　 Figure 11-2 General page of the SQL server network utility dialog box2. the SQL server network utility dialog box has two volume labels: general and communication protocol network link library. Generally, tabs are used to enable and disable network communication protocols. The enabled communication protocols are arranged in the list on the right hand side, and SQL Server tries to use these communicati

Oracle error code and modification summary, oracle error code Summary The RA-00903 is not valid and the table name tries to create an index in a non-existent table. Set the correct table name. The ORA-00904's invalid identifier attempts to create an index in a column that does not exist. Check the column name in the table and determine the column name to be used. A list of indexed ORA-01408 has attempted to create an index, and a column set with the

and sensitivity to the problem. The log Content format varies depending on the tracing object. The following is the key information for this tracking:SO: 000007FF493D38A0, type: 4, owner: 000007FF49005208, flag: INIT/-/0x00(Session) sid: 543 trans: 0000000000000000, creator: 000007FF49005208, flag: (51) USR/-BSY /-/-/-/-/-DID: 0001-0016-00000003, short-termDID: 0000-0000-00000000Txn branch: 0000000000000000Oct: 0, prv: 0, SQL: 0000000000000000, psql: 0000000000000000, user: 0/SYSLast wait for '

() {Thread. currentThread (). setName ("sub-thread"); System. out. println ("entering the sub-thread"); B. bar (a);} public static void main (String [] args) {DeadLock dl = new DeadLock (); new Thread (dl ). start (); dl. init ();}} The running result is as follows: The main thread enters the sub-thread. The main thread enters the foo sub-thread of A and the bar sub-thread of B tries to call the last main thread of A and

~ /. Wgetrc Record and input file parameters: -O,-output-file = FILE: Write the record to the FILE file. -A,-append-output = FILE: append the record to the FILE. -D,-debug print debugging output -Q,-quiet mode (no output) -V,-verbose mode (this is the default setting) -Nv,-non-verbose turn off the lengthy mode, but not the quiet mode -I,-input-file = FILE: the URL that appears when the FILE is downloaded -F,-force-html treats the input file as an HTML file -B,-base = URL uses the URL as the pre

Develop and detect URL scripts Hello everyone, what I bring to you today is some small examples of writing website detection scripts. Here I use two methods to achieve this. 1. The first implementation is as follows: 2. The second implementation is as follows: The script for the first implementation is as follows: #!/bin/bash# DATE:2018-2-20# URL:https://blog.csdn.net/qq_39591494# Email:www.ywyankai.cn# information:Website monitoring# By.yankerp. /etc/init.d/functionsfunction Connection(){

real behavior in the interpreter is hard-coded, and it is more efficient than this simulation. All the functions used in these interpretations (rawget, tonumber, call, etc.) are described in section 6.1.''Add '':It is called when the + operation is applied to non-numeric operands.The following function getbinmethod defines how Lua selects a label method for a binary operation. First, Lua tries the first operand. If its label does not define the label

-in exceptions Java's unchecked runtimeexception subclass defined in Java. Lang (17 in total) Reference: http://www.cnblogs.com/qinqinmeiren/archive/2010/10/14/2151702.html Http://blog.sina.com.cn/s/blog_4d8498800100dcm3.html Nullpointerexception-null pointer reference exception Classcastexception-type forced conversion exception Enumconstantnotpresentexception tries to use undefined enumerated Value Illegalargumentexception-An error occurred while pa

continuedThe third non-recursive version of the Middle-order traversal: uses a pointer to the parent node for backtracking. This is very similar to the first-order traversal. The difference is that as long as a node is encountered during the first-order traversal, the node is not accessed immediately. After the first-order traversal, the system tries to go left, if the left child makes up class access, he tries