hikaricp

DB connections increase after setting aurora in MariaDB connector

由 混江龙づ霸主 提交于 2021-02-08 06:48:03
问题 We're testing the failover behaviour using the MariaDB JDBC connector Aurora specific features. We've set the JDBC URL as the documentation suggest: jdbc:mysql:aurora://cluster.cluster-xxxx.us-east-1.rds.amazonaws.com/db The problem is that as soon as we add the aurora: part in the URL schema, we can see an increase in the connections to the database writer until the point that we've to rollback the change (it even reaches 3.000 connections). Versions: MariaDB connector: 2.0.1 HikariCP

How to Use HikariCP with MySql JDBC

由 安稳与你 提交于 2021-01-28 04:29:42
问题 I'm trying to use HikariCP JDBC connection pool in my Java application. I'm not using any frameworks like Spring or Hibernate in my application. Currently I'm able to connect to MySQL DB using simple JDBC driver but when I try using Hiraki the code is not working. Can't understand where I'm going wrong even after initializing the data source . Initial JDBC Working Code.. public class Connect extends ErrorCat{ protected Connection connection = null; //Database user name and password private

How to Use HikariCP with MySql JDBC

由 点点圈 提交于 2021-01-28 04:23:30
问题 I'm trying to use HikariCP JDBC connection pool in my Java application. I'm not using any frameworks like Spring or Hibernate in my application. Currently I'm able to connect to MySQL DB using simple JDBC driver but when I try using Hiraki the code is not working. Can't understand where I'm going wrong even after initializing the data source . Initial JDBC Working Code.. public class Connect extends ErrorCat{ protected Connection connection = null; //Database user name and password private

Hikari “Add connection elided”

由 和自甴很熟 提交于 2021-01-27 13:25:50
问题 I am getting the following messages running a task in spring cloud data flow. DEBUG 13167 --- [spring_batch146] com.zaxxer.hikari.pool.HikariPool : HikariPool-2 - Add connection elided, waiting 1, queue 2 I can't find any information on it. 回答1: The log message indicates that your application experienced a sudden burst of traffic and database connection requests triggered asynchronously were "merged". You can find additional information relating to this feature in the Welcome to the Jungle

Hikari “Add connection elided”

由 给你一囗甜甜゛ 提交于 2021-01-27 13:08:45
问题 I am getting the following messages running a task in spring cloud data flow. DEBUG 13167 --- [spring_batch146] com.zaxxer.hikari.pool.HikariPool : HikariPool-2 - Add connection elided, waiting 1, queue 2 I can't find any information on it. 回答1: The log message indicates that your application experienced a sudden burst of traffic and database connection requests triggered asynchronously were "merged". You can find additional information relating to this feature in the Welcome to the Jungle

HikariPool connection not available after long I/o operation for concurrent request

由 半世苍凉 提交于 2021-01-07 02:52:48
问题 I recently started getting error on my project which calls a third party api which usually takes 40sec. Looks like db connection from hikaripool is hijacked by the parent thread and is not available for other concurrent requests Here is the overview of the implemention DB insert (business logic) Restemplate call (40 sec) DB update (business logic) Some errors on high concurrency java.sql.SQLTransientConnectionException: HikariPool-1 - Connection is not available, request timed out after

Spring boot application is not starting

由 蹲街弑〆低调 提交于 2021-01-07 02:51:18
问题 My spring boot application is not able to start. I am unable to find the root cause of that. I guess Hikari pool may create the issue for that. Below is the log. Any help will be appreciated. {"timestamp": "12/22/2020 14:48:58:0354", "class": "com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator", "file": "HikariPool.java", "level" : "DEBUG", "line_number" : "728", "url": "", "ip_address": "", "server_trace_id":"", "message": HikariPool-1 - Added connection org.postgresql.jdbc.PgConnection

Spring boot application is not starting

由 ε祈祈猫儿з 提交于 2021-01-07 02:50:04
问题 My spring boot application is not able to start. I am unable to find the root cause of that. I guess Hikari pool may create the issue for that. Below is the log. Any help will be appreciated. {"timestamp": "12/22/2020 14:48:58:0354", "class": "com.zaxxer.hikari.pool.HikariPool$PoolEntryCreator", "file": "HikariPool.java", "level" : "DEBUG", "line_number" : "728", "url": "", "ip_address": "", "server_trace_id":"", "message": HikariPool-1 - Added connection org.postgresql.jdbc.PgConnection

druid&HikariCP学习记录

由 家住魔仙堡 提交于 2020-12-22 17:26:00
一：druid 1.Druid是一个JDBC组件，它包括三部分： DruidDriver 代理Driver，能够提供基于Filter－Chain模式的插件体系，类似Serlvet的Filter，配置Filter拦截JDBC的方法调用，可以很方便编写JDBC层的扩展插件。可以在上面做任何事情，比如说性能监控、SQL审计、用户名密码加密、日志等等。 DruidDataSource 高效可管理的数据库连接池。 替换 DBCP 和 C3P0 等其他数据库连接池 SQLParser mycat使用 2.作者简介-温少 2001年毕业于深圳大学，毕业后到金蝶软件研发中心工作9年，工作内容包括工作流引擎、多数据库支持引擎、短信网网关等。2010年3月加入阿里巴巴至今，主要的工作是设计和实现阿里巴巴应用监控系统Dragoon，Druid和Fastjson都是监控系统实现的副产品。 3. 为什么选择druid 阿里巴巴是一个重度使用关系数据库的公司，我们在生产环境中大量的使用Druid，通过长期在极高负载的生产环境中实际使用、修改和完善，让Druid逐步发展成最好的数据库连接池。Druid在 监控、可扩展性、稳定性和性能 方面都有明显的优势。 稳定性。 In Taobao large-scale high concurrency environment, only two connection

Modify Hikari properties at runtime

由 自闭症网瘾萝莉.ら 提交于 2020-12-06 17:43:36
问题 Where can I find information about Hikari properties that can be modified at runtime? I tried to modify connectionTimeout . I can do it and it will be modified in the HikariDataSource without an exception (checked by setting and then getting the property) but it takes no effect. If I initially do: HikariConfig config = new HikariConfig(); config.setConnectionTimeout(12000); HikariDataSource pool = new HikariDataSource(config); and later on I do config.setConnectionTimeout(5000); Hikari tries
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