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Redis為什么快如何實現(xiàn)高可用及持久化_Redis_腳本之家
Redis提供了一個參數(shù):cluster-require-full-coverage,用來配置可以允許部分節(jié)點出問題后,還有其他節(jié)點在運行時可以正常提供服務(wù)。 另外一點比較特殊的是,Cluster中當一個節(jié)點發(fā)現(xiàn)某個其他節(jié)點出現(xiàn)失聯(lián)了,這個時候問題節(jié)點只是PFail(Possibly-可能下線),然后它會把這個失聯(lián)信息廣播給其他節(jié)點,當一個節(jié)點接收到某個節(jié)點的失...
www.dbjr.com.cn/article/2032...htm 2025-5-14
GD 編譯出錯解決方法_LINUX_操作系統(tǒng)_腳本之家
GD 編譯出錯解決方法 編譯最新的2.0.35版本,用默認的 ./configure編譯 當make的時候,出現(xiàn)以下錯誤 configure.ac:64: error: possibly undefined macro: AM_ICONV If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. make: *** [co GPT4.0+Midjourney繪畫+...
www.dbjr.com.cn/LINUXjishu/162...html 2025-5-28
Springboot2.x結(jié)合Mabatis3.x下Hikari連接數(shù)據(jù)庫報超時錯誤_java_腳本...
原來Springboot1.x的版本沒有這個問題,升級到2.x之后,剛啟動沒有問題,數(shù)據(jù)庫獲取數(shù)據(jù)很正常,但是幾分鐘沒有數(shù)據(jù)庫操作后,定時任務(wù)連接數(shù)據(jù)庫時會報超時。 HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@4615f6a1 (No operations allowed after connection closed.). Possibly con...
www.dbjr.com.cn/program/3050371...htm 2025-6-9
APR中內(nèi)存分配的調(diào)試 - Apache 2.2 中文版參考手冊
Provide diagnostic information about make_table() calls which are possibly too small. This requires a recent gcc which supports __builtin_return_address(). The error_log output will be a message such as: table_push: apr_table_t created by 0x804d874 hit limit of 10 Use l *0x804d874...
www.dbjr.com.cn/tools/onlinetools/apach... 2025-6-2
擴展PHP 3
Possibly, register functions for this object. In order to obtain values from the object, the function would have to fetch "this" from the active_symbol_table. Its type should be IS_OBJECT, and it's basically a regular hash table (i.e., you can use regular hash functions on .value.ht...
www.dbjr.com.cn/shouce/php5/zh/phpdev... 2025-5-27
模式語法
a single character, possibly escaped the . metacharacter a character class a back reference (see next section) a parenthesized subpattern (unless it is an assertion - see below) The general repetition quantifier specifies a minimum and maximum number of permitted matches, by giving the two numbers...
www.dbjr.com.cn/shouce/php5/zh/referenc... 2025-6-3
Windows Script Engines
InitNew(and possibly also callIActiveScriptParse::ParseScriptText). Use of this transition should be considered an optimization of the above steps. Note that any information the scripting engine has obtained about the names of Named Items and the type information describing Named Items remains ...
www.dbjr.com.cn/shouce/script56/Script5... 2025-5-15
淺談一下Java中的幾種JVM級別的鎖_java_腳本之家
* returning on success. Otherwise the thread is queued, possibly * repeatedly blocking and unblocking, invoking {@link * #tryAcquire} until success. This method can be used * to implement method {@link Lock#lock}. * * @param arg the acquire argument. This value is conveyed to ...
www.dbjr.com.cn/program/294262g...htm 2023-8-4
PDO Functions
You're not limited to making updates in a transaction; you can also issue complex queries to extract data, and possibly use that information to build up more updates and queries; while the transaction is active, you are guaranteed that no one else can make changes while you are in the mid...
www.dbjr.com.cn/shouce/php5/zh/ref.p... 2025-6-8