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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://issues.shibboleth.net/jira/browse/IDP" style="color: #3b73af; text-decoration: none">Identity Provider</a> / <a href="https://issues.shibboleth.net/jira/browse/IDP-831" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-122d8691-26e4-41f8-bc62-408463e273a5" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://issues.shibboleth.net/jira/browse/IDP-831" style="color: #3b73af; text-decoration: none">IDP-831</a>
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Affects Versions:
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3.1.2
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="rdw@iay.org.uk" id="email_rdw@iay.org.uk" href="https://issues.shibboleth.net/jira/secure/ViewProfile.jspa?name=rdw%40iay.org.uk" style="color:#3b73af;; color: #3b73af; text-decoration: none">Rod Widdowson</a>
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Components:
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Attribute Resolver
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Created:
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05/Oct/15 11:44 AM
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="peter@aco.net" id="email_peter@aco.net" href="https://issues.shibboleth.net/jira/secure/ViewProfile.jspa?name=peter%40aco.net" style="color:#3b73af;; color: #3b73af; text-decoration: none">Peter Schober</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Not sure this is a bug but since it worked in IDPv2 (unless I'm confused) I'll start there:</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">When trying to get the IDP to work with an sqlite database (using the Xerial JDBC driver) and ContainerManagedConnections (<a href="http://tomcat.apache.org/tomcat-8.0-doc/jndi-resources-howto.html#JDBC_Data_Sources" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">defaultReadOnly</a> not being set) I get an error from the resolver, due to sqlite seemingly not reacting well to <tt>setReadOnly=true</tt> (unconditionally?) being called on the Connection:</p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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<pre style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-word; white-space: pre-wrap">2015-10-05 13:54:17,209 - ERROR [net.shibboleth.idp.profile.impl.ResolveAttributes:256] - Profile Action ResolveAttributes: Error resolving attributes
net.shibboleth.idp.attribute.resolver.ResolutionException: Data Connector 'dbnames': Unable to execute SQL query
at net.shibboleth.idp.attribute.resolver.dc.rdbms.impl.RDBMSDataConnector.retrieveAttributes(RDBMSDataConnector.java:147)
Caused by: java.sql.SQLException: Cannot change read-only flag after establishing a connection. Use SQLiteConfig#setReadOnly and SQLiteConfig.createConnection().
at org.sqlite.jdbc3.JDBC3Connection.setReadOnly(JDBC3Connection.java:112)
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">That seems to be a well-known issue for the sqlite JDBC drivers available, e.g.</p>
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<a href="https://bitbucket.org/xerial/sqlite-jdbc/issues/136/sqlexception-when-calling-setreadonly-in" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://bitbucket.org/xerial/sqlite-jdbc/issues/136/sqlexception-when-calling-setreadonly-in</a>
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<a href="https://github.com/jprante/elasticsearch-jdbc/issues/250" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://github.com/jprante/elasticsearch-jdbc/issues/250</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">possibly stemming from the JDBC driver being overly strict for something considered merely a "hint" for "optimization" purposes:</p>
<blockquote style="margin: 10px 0 0 0; border-left: 1px solid #ccc; color: #707070; margin-left: 19px; padding: 10px 20px">
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">"setReadOnly – Puts this connection in read-only mode as a hint to the driver to enable database optimizations." <a href="http://docs.oracle.com/javase/8/docs/api/java/sql/Connection.html#setReadOnly-boolean-" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">Java SQL API</a></p>
</blockquote>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Anyway, with IDPv2 I could set <tt>resolver:DataConnector/readOnlyConnection="false"</tt> to work around this issue, AFAIR. Setting this in v3 does not have any obserable effect, though.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Was this dropped on purpose? Is there use for this even outside (admittedly, in my own case) toy deployments using sqlite?</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">N.B. I could work around this in IDPv3 by reverting from <tt>sqlite-jdbc-3.8.11.1.jar</tt> to a previous release of the JDBC driver, as versions before 3.7.15-M1 don't react this way. E.g. <tt>sqlite-jdbc-3.7.2.jar</tt> seem to work with IDPv3, though there may be other issues due to missed code fixes in newer releases.</p>
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