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<p>Hi,</p>
<p></p>
<p>I'm having this problem:</p>
<p></p>
<p>21 Jan 2008 19:06:40,146 ERROR [rg.opencms.main.CmsThreadStore: 190] Failed to</p>
<p>write locks to database.</p>
<p>org.opencms.db.CmsDbSqlException: An SQL error occurred when executing the</p>
<p>following query: com.mysql.jdbc.PreparedStatement@4904c8: statement has been</p>
<p>close</p>
<p>d, no further internal information available.</p>
<p>at</p>
<p>org.opencms.db.generic.CmsProjectDriver.writeLocks(CmsProjectDriver.java:2177)</p>
<p>at org.opencms.lock.CmsLockManager.writeLocks(CmsLockManager.java:582)</p>
<p>at</p>
<p>org.opencms.db.CmsDriverManager.writeLocks(CmsDriverManager.java:7920)</p>
<p>at</p>
<p>org.opencms.db.CmsSecurityManager.writeLocks(CmsSecurityManager.java:5091)</p>
<p>at org.opencms.main.CmsThreadStore.run(CmsThreadStore.java:187)</p>
<p>Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure</p>
<p>due to underlying exception:</p>
<p></p>
<p>** BEGIN NESTED EXCEPTION **</p>
<p></p>
<p>java.io.EOFException</p>
<p>MESSAGE: Can not read response from server. Expected to read 4 bytes, read 0</p>
<p>bytes before connection was unexpectedly lost.</p>
<p></p>
<p>STACKTRACE:</p>
<p></p>
<p>java.io.EOFException: Can not read response from server. Expected to read 4</p>
<p>bytes, read 0 bytes before connection was unexpectedly lost.</p>
<p>at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1997)</p>
<p>at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2411)</p>
<p>..</p>
<p></p>
<p>I've googled around and didn't find anything related. I'm using two machines</p>
<p></p>
<p>1 - webserver</p>
<p> centos5 (i386)</p>
<p> apache-tomcat-6.0.14</p>
<p> jdk-1.6.0_03-fcs</p>
<p> opencms 7.0.3</p>
<p></p>
<p>2 - db server</p>
<p> centos5 (x86_64)</p>
<p> mysql 5</p>
<p></p>
<p>Any info?</p>
<p>Thanks,</p>
<p>Nuno Fernandes</p>
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