当与 Oracle DB 的连接断开时，会连续打印 PooledConnection has already been closed答案

【问题标题】：When the conection to the Oracle DB is dropped, PooledConnection has already been closed is printed continuously当与 Oracle DB 的连接断开时，会连续打印 PooledConnection has already been closed
【发布时间】：2018-05-09 00:09:21
【问题描述】：

我已经安装了 wso2esb-4.9.0 并且主数据源被配置为一个 oracle 数据库。当与 Oracle 数据库的连接由于网络连接问题而中断时，即使连接再次恢复，也会不断打印以下错误。只有在重新启动后异常才会停止。

TID：[-1234] [] [2016-05-16 00:53:21,457] 错误 {org.wso2.carbon.registry.core.utils.RegistryUtils} - 无法构造 connectionId。 {org.wso2.carbon.registry.core.utils.RegistryUtils} java.sql.SQLRecoverableException：关闭连接在 oracle.jdbc.driver.PhysicalConnection.getMetaData（PhysicalConnection.java:3131）在 sun.reflect.GeneratedMethodAccessor28.invoke（未知来源）在 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 在 java.lang.reflect.Method.invoke(Method.java:606) 在 org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126) 在 org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke（JdbcInterceptor.java:109）在 org.wso2.carbon.ndatasource.rdbms.ConnectionRollbackOnReturnInterceptor.invoke（ConnectionRollbackOnReturnInterceptor.java:51）在 org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke（JdbcInterceptor.java:109）在 org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.invoke（AbstractCreateStatementInterceptor.java:71）在 org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke（JdbcInterceptor.java:109）在 org.apache.tomcat.jdbc.pool.interceptor.ConnectionState.invoke(ConnectionState.java:153) 在 org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke（JdbcInterceptor.java:109）在 org.apache.tomcat.jdbc.pool.TrapException.invoke（TrapException.java:41）在 org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke（JdbcInterceptor.java:109）在 org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke（DisposableConnectionFacade.java:80）在 com.sun.proxy.$Proxy14.getMetaData（未知来源）在 org.wso2.carbon.registry.core.utils.RegistryUtils.getConnectionId(RegistryUtils.java:194) 在 org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCDatabaseTransaction$ManagedRegistryConnection.getConnectionId(JDBCDatabaseTransaction.java:1133) 在 org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCDatabaseTransaction$ManagedRegistryConnection.rollback(JDBCDatabaseTransaction.java:1288) 在 org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCTransactionManager.rollbackTransaction(JDBCTransactionManager.java:120) 在 org.wso2.carbon.registry.core.jdbc.dao.JDBCLogsDAO.rollbackTransaction(JDBCLogsDAO.java:335) 在 org.wso2.carbon.registry.core.jdbc.dao.JDBCLogsDAO.getLogList(JDBCLogsDAO.java:306) 在 org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.getLogs(EmbeddedRegistry.java:2332) 在 org.wso2.carbon.registry.core.caching.CacheBackedRegistry.getLogs(CacheBackedRegistry.java:402) 在 org.wso2.carbon.registry.core.session.UserRegistry.getLogsInternal(UserRegistry.java:1806) 在 org.wso2.carbon.registry.core.session.UserRegistry.access$3600(UserRegistry.java:60) 在 org.wso2.carbon.registry.core.session.UserRegistry$37.run(UserRegistry.java:1777) 在 org.wso2.carbon.registry.core.session.UserRegistry$37.run(UserRegistry.java:1774) 在 java.security.AccessController.doPrivileged（本机方法）在 org.wso2.carbon.registry.core.session.UserRegistry.getLogs(UserRegistry.java:1774) 在 org.wso2.carbon.registry.indexing.ResourceSubmitter.submitResource(ResourceSubmitter.java:119) 在 org.wso2.carbon.registry.indexing.ResourceSubmitter.run(ResourceSubmitter.java:76) 在 java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) 在 java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) 在 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) 在 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) 在 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 在 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 在 java.lang.Thread.run(Thread.java:745)

master-datasources.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?><datasources-configuration xmlns:svns="http://org.wso2.securevault/configuration">

<providers>
    <provider>org.wso2.carbon.ndatasource.rdbms.RDBMSDataSourceReader</provider>
</providers>

<datasources>

    <datasource>
        <name>WSO2_CARBON_DB</name>
        <description>The datasource used for registry and user manager</description>
        <jndiConfig>
            <name>jdbc/WSO2CarbonDB</name>
        </jndiConfig>
        <definition type="RDBMS">
            <configuration>
                <url>jdbc:oracle:thin:@xxx.xx.x.xxx:1528/dvdb</url>
        <username>esbuser</username>
                <password svns:secretAlias="Datasources.WSO2_CARBON_DB.Configuration.Password">password</password>
                <driverClassName>oracle.jdbc.driver.OracleDriver</driverClassName>
                <maxActive>80</maxActive>
                <maxWait>60000</maxWait>
                <minIdle>5</minIdle>
                <testOnBorrow>true</testOnBorrow>
                <validationQuery>SELECT 1 FROM DUAL</validationQuery>
                <validationInterval>30000</validationInterval>
            </configuration>
        </definition>
    </datasource>
<datasource>
        <name>WSO2_REG_DB</name>
        <description>The datasource used for registry and user manager</description>
        <jndiConfig>
            <name>jdbc/WSO2REG</name>
        </jndiConfig>
        <definition type="RDBMS">
            <configuration>
                <url>jdbc:oracle:thin:@xxx.xx.x.xxx:1528/dvdb</url>
                <username>reguser</username>
                <password svns:secretAlias="Datasources.WSO2_REG_DB.Configuration.Password">password</password>
                <driverClassName>oracle.jdbc.driver.OracleDriver</driverClassName>
                <maxActive>50</maxActive>
                <maxWait>60000</maxWait>
                <minIdle>5</minIdle>
                <validationQuery>SELECT 1 FROM DUAL</validationQuery>
                <testWhileIdle>true</testWhileIdle>
        <timeBetweenEvictionRunsMillis>1800000</timeBetweenEvictionRunsMillis>
        <numTestsPerEvictionRun>5</numTestsPerEvictionRun>
        <minEvictableIdleTimeMillis>3600000</minEvictableIdleTimeMillis>
            </configuration>
        </definition>
    </datasource>
    <!-- For an explanation of the properties, see: http://people.apache.org/~fhanik/jdbc-pool/jdbc-pool.html -->
    <!--datasource>
        <name>SAMPLE_DATA_SOURCE</name>
        <jndiConfig>
            <name></name>
            <environment>
                <property name="java.naming.factory.initial"></property>
                <property name="java.naming.provider.url"></property>
            </environment>
        </jndiConfig>
        <definition type="RDBMS">
            <configuration>

                <defaultAutoCommit></defaultAutoCommit>
                <defaultReadOnly></defaultReadOnly>
                <defaultTransactionIsolation>NONE|READ_COMMITTED|READ_UNCOMMITTED|REPEATABLE_READ|SERIALIZABLE</defaultTransactionIsolation>
                <defaultCatalog></defaultCatalog>
                <username></username>
                <password svns:secretAlias="WSO2.DB.Password"></password>
                <maxActive></maxActive>
                <maxIdle></maxIdle>
                <initialSize></initialSize>
                <maxWait></maxWait>

                <dataSourceClassName>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</dataSourceClassName>
                <dataSourceProps>
                    <property name="url">jdbc:mysql://localhost:3306/Test1</property>
                    <property name="user">root</property>
                    <property name="password">123</property>
                </dataSourceProps>

            </configuration>
        </definition>
    </datasource-->

</datasources>

repository/conf/registry.xml

<currentDBConfig>wso2registry</currentDBConfig>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>

<dbConfig name="wso2registry">
    <dataSource>jdbc/WSO2CarbonDB</dataSource>
</dbConfig>

<dbConfig name="remoteRegistry">
    <dataSource>jdbc/WSO2REG</dataSource>
</dbConfig>

<remoteInstance url="https://registryhost:9453/registry">
    <id>9453</id>
    <dbConfig>remoteRegistry</dbConfig>
    <readOnly>false</readOnly>
    <registryRoot>/</registryRoot>
</remoteInstance>

<mount path="/_system/config" overwrite="false">
    <instanceId>9453</instanceId>
    <targetPath>/_system/nodes</targetPath>
</mount>

<mount path="/_system/governance" overwrite="false">
    <instanceId>9453</instanceId>
    <targetPath>/_system/governance</targetPath>
</mount>

【问题讨论】：

标签： wso2esb

【解决方案1】：

在我的情况下，问题是由文件 repository/config/registry.xml 中删除的错误行引起的。

我删除了这段代码：

<dbConfig name="wso2registry">
    <dataSource>jdbc/WSO2CarbonDB</dataSource>
</dbConfig>

而不是添加另一个 dbConfig 标记。

对我来说，更正是重新添加该标签。像这样：

<wso2registry>

<!-- These are used to define the DB configuration and the basic parameters to be used for the registry -->

<currentDBConfig>wso2registry</currentDBConfig>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>

<!-- This defines the default database and its configuration of the registry -->

<dbConfig name="wso2registry">
    <dataSource>jdbc/WSO2CarbonDB</dataSource>
</dbConfig>

<dbConfig name="sharedregistry">
    <dataSource>jdbc/WSO2RegistryDB</dataSource>
</dbConfig>
...
...
</wso2registry>

希望这篇文章对你有所帮助...

【讨论】：

【解决方案2】：

我遇到了同样的问题。

在 master-datasources.xml 1-将数据源名称设置为与 jndiConfig 名称相同 2- 为注册表和用户管理设置 2 个不同名称的不同数据源。这里是我的 master-datasources.xml

<datasource>
        <name>WSO2REG_DB</name>
        <description>The datasource used for registry</description>
        <jndiConfig>
            <name>jdbc/WSO2REG_DB</name>
        </jndiConfig>
        <definition type="RDBMS">
            <configuration>
                <url>jdbc:mysql://localhost:3306/registry?autoReconnect=true&amp;relaxAutoCommit=true&amp;</url>
                <username>apiuser</username>
                <password>apimanager</password>
                <driverClassName>com.mysql.jdbc.Driver</driverClassName>
                <maxActive>50</maxActive>
                <maxWait>60000</maxWait>
                <testOnBorrow>true</testOnBorrow>
                <validationQuery>SELECT 1</validationQuery>
                <validationInterval>30000</validationInterval>
            </configuration>
        </definition>
    </datasource>

    <datasource>
        <name>WSO2UM_DB</name>
        <description>The datasource used for user management</description>
        <jndiConfig>
            <name>jdbc/WSO2UM_DB</name>
        </jndiConfig>
        <definition type="RDBMS">
            <configuration>
                <url>jdbc:mysql://localhost:3306/userstore?autoReconnect=true&amp;relaxAutoCommit=true&amp;
                </url>
                <username>apiuser</username>
                <password>apimanager</password>
                <driverClassName>com.mysql.jdbc.Driver</driverClassName>
                <maxActive>50</maxActive>
                <maxWait>60000</maxWait>
                <testOnBorrow>true</testOnBorrow>
                <validationQuery>SELECT 1</validationQuery>
                <validationInterval>30000</validationInterval>
            </configuration>
        </definition>
    </datasource>

在registry.xml中 1-使用用户管理数据源设置 wso2registry dbConfig 2- 使用注册表数据源设置 govregistry dbConfig

这里是我的 registry.xml

<dbConfig name="wso2registry">
    <dataSource>jdbc/WSO2UM_DB</dataSource>
</dbConfig>

<dbConfig name="govregistry">
    <dataSource>jdbc/WSO2REG_DB</dataSource>
</dbConfig>

它对我有用，我的 IS-Server 可以正常启动。当问题尚未解决时，希望它也对您有用。

【讨论】：