No more data to read from socket error

转载自：http://stackoverflow.com/questions/7839907/no-more-data-to-read-from-socket-error

We are using Oracle as the database for our Web application. The application runs well most of the time, but we get this "No more data to read from socket" error.

Caused by: java.sql.SQLRecoverableException: No more data to read from socket    at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1142)    at oracle.jdbc.driver.T4CMAREngine.unmarshalSB1(T4CMAREngine.java:1099)    at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:288)    at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:191)    at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:523)    at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207)    at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:863)    at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1153)    at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1275)    at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3576)    at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3620)    at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1491)    at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)    at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)    at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)    at org.hibernate.loader.Loader.getResultSet(Loader.java:1869)    at org.hibernate.loader.Loader.doQuery(Loader.java:718)    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:270)    at org.hibernate.loader.Loader.doList(Loader.java:2449)    ... 63 more

We use spring, hibernate and i have the following for the datasource in my applciation context file.

<bean class="org.apache.commons.dbcp.BasicDataSource"        destroy-method="close" id="dataSource">        <property name="driverClassName" value="${database.driverClassName}" />        <property name="url" value="${database.url}" />        <property name="username" value="${database.username}" />        <property name="password" value="${database.password}" />        <property name="defaultAutoCommit" value="false" />        <property name="initialSize" value="10" />        <property name="maxActive" value="30" />        <property name="validationQuery" value="select 1 from dual" />        <property name="testOnBorrow" value="true" />        <property name="testOnReturn" value="true" />        <property name="poolPreparedStatements" value="true" />        <property name="removeAbandoned" value="true" />        <property name="logAbandoned" value="true" />    </bean>

I am not sure whether this is because of application errors, database errors or network errors.

We see the following on the oracle logs

Thu Oct 20 10:29:44 2011Errors in file d:\oracle\diag\rdbms\ads\ads\trace\ads_ora_3836.trc  (incident=31653):ORA-03137: TTC protocol internal error : [12333] [4] [195] [3] [] [] [] []Incident details in: d:\oracle\diag\rdbms\ads\ads\incident\incdir_31653\ads_ora_3836_i31653.trcThu Oct 20 10:29:45 2011Trace dumping is performing id=[cdmp_20111020102945]Thu Oct 20 10:29:49 2011Sweep [inc][31653]: completedSweep [inc2][31653]: completedThu Oct 20 10:34:20 2011Errors in file d:\oracle\diag\rdbms\ads\ads\trace\ads_ora_860.trc  (incident=31645):ORA-03137: TTC protocol internal error : [12333] [4] [195] [3] [] [] [] []Incident details in: d:\oracle\diag\rdbms\ads\ads\incident\incdir_31645\ads_ora_860_i31645.trcThu Oct 20 10:34:21 2011

 

For errors like this you should involve oracle support. Unfortunately you do not mention what oracle release you are using. The error can be related to optimizer bind peeking. Depending on the oracle version different workarounds apply.

You have two ways to address this:

• upgrade to 11.2
• set oracle parameter “_optim_peek_user_binds”=false

Of course underscore parameters should only be set if advised by oracle support

Try two things:

1. Set in $ORACLE_HOME/network/admin/tnsnames.ora on the oracle server server=dedicated to server=shared to allow more than one connection at a time. Restart oracle.
2. If you are using Java this might help you: In java/jdk1.6.0_31/jre/lib/security/Java.security changesecurerandom.source=file:/dev/urandom to securerandom.source=file:///dev/urandom