No more data to read from socket error

问题:

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.

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 2011 Errors 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.trc Thu Oct 20 10:29:45 2011 Trace dumping is performing id=[cdmp_20111020102945] Thu Oct 20 10:29:49 2011 Sweep [inc][31653]: completed Sweep [inc2][31653]: completed Thu Oct 20 10:34:20 2011 Errors 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.trc Thu Oct 20 10:34:21 2011

Oracle Version : 11.2.0.1.0

回答1:

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

回答2:

We were facing same problem, we resolved it by increasing initialSize and maxActive size of connection pool.

You can check this link

Maybe this helps someone.

回答3:

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 change securerandom.source=file:/dev/urandom to securerandom.source=file:///dev/urandom

回答4:

Downgrading the JRE from 7 to 6 fixed this issue for me.

回答5:

Another case: If you are sending date parameters to a parameterized sql, make sure you sent java.sql.Timestamp and not java.util.Date. Otherwise you get

java.sql.SQLRecoverableException: No more data to read from socket

Example statement: In our java code, we are using org.apache.commons.dbutils and we have the following:

final String sqlStatement = "select x from person where date_of_birth between ? and ?"; java.util.Date dtFrom = new Date(); //

The above was failing until we changed the date parameters to be java.sql.Timestamp

java.sql.Timestamp tFrom = new java.sql.Timestamp (dtFrom.getTime()); //

回答6:

I had the same problem. I was able to solve the problem from application side, under the following scenario:

JDK8, spring framework 4.2.4.RELEASE, apache tomcat 7.0.63, Oracle Database 11g Enterprise Edition 11.2.0.4.0

I used the database connection pooling apache tomcat-jdbc:

You can take the following configuration parameters as a reference:

This configuration was sufficient to fix the error. This works fine for me in the scenario mentioned above.

For more details about the setup apache tomcat-jdbc: https://tomcat.apache.org/tomcat-7.0-doc/jdbc-pool.html

回答7:

Yes, as @ggkmath said, sometimes a good old restart is exactly what you need. Like when "contact the author and have him rewrite the app, meanwhile wait" is not an option.

This happens when an application is not written (yet) in a way that it can handle restarts of the underlying database.

回答8:

I got this error then restarted my GlassFish server that held connection pools between my client app and the database, and the error went away. So, try restarting your application server if applicable.

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