GrailsとGormを使用して、データベース操作の選択と挿入を12時間以上実行しています。私も接続をプールします。突然次のエラーが発生し、MySQLを再起動する必要がありました。なぜ？：
java.net.SocketException: Software caused connection abort: recv failed
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:150)
at java.net.SocketInputStream.read(SocketInputStream.java:121)
at com.mysql.jdbc.util.ReadAheadInputStream.fill(ReadAheadInputStream.java:114)
at com.mysql.jdbc.util.ReadAheadInputStream.readFromUnderlyingStreamIfNecessary(ReadAheadInputStream.java:161)
at com.mysql.jdbc.util.ReadAheadInputStream.read(ReadAheadInputStream.java:189)
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2537)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2990)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2979)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3520)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1990)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2151)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2625)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2119)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2281)
at grails.orm.HibernateCriteriaBuilder.invokeMethod(HibernateCriteriaBuilder.java:1167)
at indiaweatherstation.PopulatedataService$_crawlAWS_closure2.doCall(PopulatedataService.groovy:89)
at indiaweatherstation.PopulatedataService.crawlAWS(PopulatedataService.groovy:20)
at indiaweatherstation.PopulatedataService$crawlAWS.call(Unknown Source)
at indiaweatherstation.CrawlerController$_closure1.doCall(CrawlerController.groovy:16)
at indiaweatherstation.CrawlerController$_closure1.doCall(CrawlerController.groovy)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)