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https://issues.apache.org/jira/browse/DERBY-2026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen updated DERBY-2026:
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Issue & fix info: [Repro attached]
Triaged for 10.5.2.
> 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
> Priority: Minor
> Attachments: LoginTimeout.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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