Tomcat: Communication link failure: EOFException
m running tomcat 6.0.13 on a redhat 4.1.1 and I'm seeing this all too often in the catalina.out log:
java.sql.SQLException: Communication link failure: java.io.EOFException, underlying cause: null ** BEGIN NESTED EXCEPTION ** java.io.EOFException STACKTRACE: java.io.EOFException at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1395) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:1539) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1930) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1168) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1279) at com.mysql.jdbc.Connection.execSQL(Connection.java:2281) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1634) at com.uploadtracker.frontend.UPTRADRIVER.getSLAVESTATUS(UPTRADRIVER.java:218) at com.uploadtracker.frontend.UPTRADRIVER.getTrack(UPTRADRIVER.java:202) etc.... I've searched many forums/mail lists and cannot come up with a fix. Any ideas as to what's causing this? Could it be a dodgy network or mishandling of connections? Would setting "autoReconnect" and/or "autoReconnectForPools" options to true in the connection strings help? This doesn't actually cause any crashes, but its still a mystery to me. |
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