Hibernate Sql Error 0 Sqlstate 08003
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here for a quick no operations allowed after connection closed.connection was implicitly closed by the driver. overview of the site Help Center Detailed answers to no operations allowed after connection closed mysql any questions you might have Meta Discuss the workings and policies of hibernate connection leak detection this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with sql error: 0, sqlstate: null us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Not
Autoreconnect=true
able to connect with database after some times of deployment on server up vote 7 down vote favorite I uploaded my war file on my server it works perfectly after deploy but after some time it shows exception. I am using struts2 and hibernate my hibernate.cfg.xml is
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C3p0 Timeout
have Meta Discuss the workings and policies of this site About spring boot connection pool Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting mysqlnontransientconnectionexception ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million http://stackoverflow.com/questions/25381168/not-able-to-connect-with-database-after-some-times-of-deployment-on-server programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Running out of DB connections! up vote 6 down vote favorite 4 I'm running a Spring/Hibernate connecting to MySQL setup using c3p0 as my connection pool. For some bizarre reason it runs out of connections when the system is http://stackoverflow.com/questions/5235912/running-out-of-db-connections under load (of course). The site was pretty stable until we started hitting a new level of traffic (over a hundred concurrent users). At that point the DB would melt down (peg the CPU). My first action was in the application to improve performance through extensive caching and optimization of queries etc. Now it will just run out of connections intermittently. It doesn't even seem that dependent on load. More on time which makes me think it's a leak but for the life of me I can't figure out where it would be coming from. WARN [2011-03-07 17:19:42,409] [TP-Processor38] (JDBCExceptionReporter.java:100) - SQL Error: 0, SQLState: null ERROR [2011-03-07 17:19:42,409] [TP-Processor38] (JDBCExceptionReporter.java:101) - An attempt by a client to checkout a Connection has timed out. ERROR [2011-03-07 17:19:42,410] [TP-Processor38] (HttpHeadFilter.java:46) - There was a problem passing thru filter:/is-this-guy-crazy-or-just-a-huge-dancing-with-the-stars-fan org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute query at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:659) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:552) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.springframework.security.w
Sign in Pricing Blog https://github.com/brettwooldridge/HikariCP/issues/34 Support Search GitHub This repository Watch 298 Star 3,496 Fork 503 brettwooldridge/HikariCP Code Issues 22 Pull requests 2 Projects 0 Wiki Pulse Graphs New issue Spring 3.2/Hibernate 4.3: Actual connection is closed upon return to pool #34 sql error Closed lawrence0819 opened this Issue Feb 6, 2014 · 26 comments Projects None yet Labels more-information-needed Milestone No milestone Assignees No one assigned 6 participants lawrence0819 commented Feb 6, 2014 I am using Spring 4 with no operations allowed Hibernate 4.3 as a JPA provider. Hibernate does not release connection back to pool when execute INSERT or UPDATE statement. I tested with c3p0 and tomcat-jdbc have not this problem. Here is my config: