本文介绍了Heroku Postgres：此连接已关闭的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我开发了一个小型的Heroku + Grails + Postreg应用程序。它会在部署20分钟后正常工作，之后我总是得到：
I developed a small Heroku + Grails + Postreg application. It would work fine somewhat 20 minutes after deployment, after that I always get:
This connection has been closed.. Stacktrace follows: Heroku/myapp - org.postgresql.util.PSQLException: This connection has been closed. Heroku/myapp - at org.postgresql.jdbc2.AbstractJdbc2Connection.checkClosed(AbstractJdbc2Connection.java:837) Heroku/myapp - at org.postgresql.jdbc2.AbstractJdbc2Connection.getAutoCommit(AbstractJdbc2Connection.java:798) Heroku/myapp - at org.grails.datastore.gorm.GormStaticApi$_methodMissing_closure2.doCall(GormStaticApi.groovy:102) Heroku/myapp - at com.myapp.WorkspaceController.list(WorkspaceController.groovy:18) Heroku/myapp - at grails.plugin.cache.web.filter.PageFragmentCachingFilter.doFilter(PageFragmentCachingFilter.java:198) Heroku/myapp - at grails.plugin.cache.web.filter.AbstractFilter.doFilter(AbstractFilter.java:63) Heroku/myapp - at grails.plugin.springsecurity.web.filter.GrailsAnonymousAuthenticationFilter.doFilter(GrailsAnonymousAuthenticationFilter.java:53) Heroku/myapp - at grails.plugin.springsecurity.web.authentication.RequestHolderAuthenticationFilter.doFilter(RequestHolderAuthenticationFilter.java:53) Heroku/myapp - at grails.plugin.springsecurity.web.authentication.logout.MutableLogoutFilter.doFilter(MutableLogoutFilter.java:62) Heroku/myapp - at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) Heroku/myapp - at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) Heroku/myapp - at java.lang.Thread.run(Thread.java:745) Heroku/myapp - 2015-08-07 15:11:10,685 [http-nio-20850-exec-5] ERROR spi.SqlExceptionHelper - This connection has been closed. Heroku/myapp - 2015-08-07 15:11:10,689 [http-nio-20850-exec-5] ERROR spi.SqlExceptionHelper - This connection has been closed. Heroku/myapp - 2015-08-07 15:11:10,696 [http-nio-20850-exec-5] ERROR errors.GrailsExceptionResolver - PSQLException occurred when processing request: [GET] /api/users/21/workspaces Heroku/myapp - This connection has been closed.. Stacktrace follows: Heroku/myapp推荐答案
我自己解决了这个问题，把它添加到DataSource.groovy中：
I have resolved it myself by adding this to DataSource.groovy:
dataSource { pooled = true properties { maxActive = -1 minEvictableIdleTimeMillis=1800000 timeBetweenEvictionRunsMillis=1800000 numTestsPerEvictionRun=3 testOnBorrow=true testWhileIdle=true testOnReturn=true validationQuery="SELECT 1" } }更多推荐
Heroku Postgres：此连接已关闭
发布评论