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Date: Tue, 17 Aug 2010 21:17:16 -0400 (EDT)
From: "Kathey Marsden (JIRA)" <jira@apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Issue Comment Edited: (DERBY-2026) Setting a login timeout
 in client driver can lead to query timeout
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    [ https://issues.apache.org/jira/browse/DERBY-2026?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12899670#action_12899670 ] 

Kathey Marsden edited comment on DERBY-2026 at 8/17/10 9:16 PM:
----------------------------------------------------------------

Attached is a patch for this issue derby-2026_diff.txt which builds on Mamta's change.  There were two more instances when the soTimeout needed to be reset after completing the connection. The change Mamta made was the path for DriverManger. The other two cases were after completing the  connections obtained from DataSources and also after reset of pooled conenctions. Tests have been added to ConnectTest for DriverManager and J2EEDataSourceTest for the data sources.  I have not yet run regressions, but will do so tonight.. Please review

Thanks

Kathey


      was (Author: kmarsden):
    Attached is a patch for this issue derby-2026_diff.txt which builds on Mamta's change.  There were two more instances when the soTimeout needed to be reset after completing the connection. The change Mamta made was the path for DriverManger. The other two cases were after completing the  DataSources and aslo after reset of pooled conenctions. Tests have been added to ConnectTest for DriverManager and J2EEDataSource for the data sources.  I have not yet run regressions, but will do so tonight.. Please review

Thanks

Kathey

  
> Setting a login timeout in client driver can lead to query timeout
> ------------------------------------------------------------------
>
>                 Key: DERBY-2026
>                 URL: https://issues.apache.org/jira/browse/DERBY-2026
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC, Network Client
>    Affects Versions: 10.3.1.4
>         Environment: Client driver on most platforms
>            Reporter: Olav Sandstaa
>            Assignee: Mamta A. Satoor
>            Priority: Minor
>         Attachments: derby-2026_diff.txt, DERBY2026_LoginTimeout_diff_patch1.txt, LoginTimeout.java, LoginTimeoutWithDataSource.java
>
>
> Setting the login timeout by using DriverManager.setLoginTimeout(int
> seconds) also affects the amount of time the client driver is waiting
> for a query to finish. For instance, setting the login timeout to 10
> seconds will result in any queries taking more than 10 seconds to fail
> with the following exception:
> Exception thrown: java.sql.SQLException: A communications error has been detected: Read timed out.
> java.sql.SQLException: A communications error has been detected: Read timed out.
>         at org.apache.derby.client.am.SQLExceptionFactory.getSQLException(SQLExceptionFactory.java:46)
>         at org.apache.derby.client.am.SqlException.getSQLException(SqlException.java:345)
>         at org.apache.derby.client.am.Statement.executeQuery(Statement.java:414)
>         at LoginTimeout.main(LoginTimeout.java:53)
> Caused by: org.apache.derby.client.am.DisconnectException: A communications error has been detected: Read timed out.
>         at org.apache.derby.client.net.NetAgent.throwCommunicationsFailure(NetAgent.java:408)
>         at org.apache.derby.client.net.Reply.fill(Reply.java:176)
>         at org.apache.derby.client.net.Reply.ensureALayerDataInBuffer(Reply.java:215)
>         at org.apache.derby.client.net.Reply.readDssHeader(Reply.java:317)
>         at org.apache.derby.client.net.Reply.startSameIdChainParse(Reply.java:1147)
>         at org.apache.derby.client.net.NetStatementReply.readPrepareDescribeOutput(NetStatementReply.java:51)
>         at org.apache.derby.client.net.StatementReply.readPrepareDescribeOutput(StatementReply.java:40)
>         at org.apache.derby.client.net.NetStatement.readPrepareDescribeOutput_(NetStatement.java:139)
>         at org.apache.derby.client.am.Statement.readPrepareDescribeOutput(Statement.java:1341)
>         at org.apache.derby.client.am.Statement.flowExecute(Statement.java:1977)
>         at org.apache.derby.client.am.Statement.executeQueryX(Statement.java:420)
>         at org.apache.derby.client.am.Statement.executeQuery(Statement.java:405)
>         ... 1 more
> Caused by: java.net.SocketTimeoutException: Read timed out
>         at java.net.SocketInputStream.socketRead0(Native Method)
>         at java.net.SocketInputStream.read(SocketInputStream.java:129)
>         at org.apache.derby.client.net.Reply.fill(Reply.java:174)
>         ... 11 more

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