hikaricp_connections_acquire_seconds_count{pool="HikariPool-1",} 1.0 hikaricp_connections_acquire_seconds_sum{pool="HikariPool-1",} 7.39E-5 # HELP hikaricp_connections_acquire_seconds_max Connection acquire time # TYPE hikaricp_connections_acquire_seconds_max gauge hikaricp_connections_acquire_seco...
hikaricp_connections_acquire_seconds_count{pool="HikariPool-1",} 3.0 hikaricp_connections_acquire_seconds_sum{pool="HikariPool-1",} 0.001230082 # HELP hikaricp_connections_acquire_seconds_max Connection acquire time # TYPE hikaricp_connections_acquire_seconds_max gauge hikaricp_connections_acquire_sec...
一、HikariCP七大常用监控指标连接池的监控指标也会展示部分的配置信息，配置需要根据当前数据库的类型和规模、应用的QPS和RT、系统的并发能力综合考虑。HikariCP配置的信息、原理和建议在前面的章节已经详细介绍过，比较重要的是要规划好初始化连接的大小、最大连接、空闲连接以及心跳语句检查尽量采用性能更高的ping命令等...
} 3.0 hikaricp_connections_acquire_seconds_sum{pool="HikariPool-1",} 0.001230082 # HELP hikaricp_connections_acquire_seconds_max Connection acquire time # TYPE hikaricp_connections_acquire_seconds_max gauge hikari
a maximum variation of +30 seconds, and average variation of +15 seconds. A connection will never be retired as idlebeforethis timeout. A value of 0 means that idle connections are never removed from the pool. The minimum allowed value is 10000ms (10 seconds).Default: 600000 (10 minutes...
The default pool size on HikariCP is ten. If an instant high load with more than ten threads occurs the connection pool can't acquire a connection in time. That's 30 seconds until it timeouts altough the request itself would take far les...
如果大于0且不是单元测试,则进一步判断:(leakDetectionThreshold < SECONDS.toMillis(2) or (leakDetectionThreshold > maxLifetime && maxLifetime > 0),会被重置为0。即如果要生效则必须>0,而且不能小于2秒,而且当maxLifetime > 0时不能大于maxLifetime(默认值1800000毫秒=30分钟)。
Lowest acceptable value for enabling leak detection is 2000 (2 seconds). Default: 0➡dataSource 此属性仅可通过编程配置或IoC容器获得。这个属性允许您直接设置要由池包装的DataSource实例,而不是让HikariCP通过反射构建它。这在一些依赖注入构架中很有用。指定此属性时,dataSourceClassName属性和所有特定于Data...
由于Hikari的isAllowPoolSuspension默认值是false的,FAUX_LOCK只是一个空方法,acquisitionSemaphore对象也是空的;如果isAllowPoolSuspension值调整为true,当收到MBean的suspend调用时将会一次性acquisitionSemaphore.acquireUninterruptibly从此信号量获取给定数目MAX_PERMITS 10000的许可,在提供这些许可前一直将线程阻塞。之后Hikar...
suspendResumeLock.acquire()走到poolEntry == null时已经超时了,拿到一个poolEntry后先判断是否已经被标记为待清理或已经超过了设置的最大存活时间(应用配置的最大存活时间不应超过DBA在DB端配置的最大连接存活时间),若是直接关闭继续调用borrow,否则才会返回该连接,metricsTracker.recordBorrowTimeoutStats(startTime)...