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https://issues.apache.org/jira/browse/SLING-8407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16835649#comment-16835649
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Thomas Mueller commented on SLING-8407:
---------------------------------------
Looks like an ancient Oak version is used.
Full exception stack trace:
{noformat}
Caused by: java.text.ParseException: Query:
/jcr:root/var/eventing/jobs//element(*,slingevent:Job)[@event.job.topic =
'sling/test/history' and @slingevent:finishedState] order by
@slingevent:finishedDate descending option(*)(traversal fail); expected: <end>
at
org.apache.jackrabbit.oak.query.xpath.XPathToSQL2Converter.getSyntaxError(XPathToSQL2Converter.java:1048)
at
org.apache.jackrabbit.oak.query.xpath.XPathToSQL2Converter.convertToStatement(XPathToSQL2Converter.java:328)
at
org.apache.jackrabbit.oak.query.xpath.XPathToSQL2Converter.convert(XPathToSQL2Converter.java:84)
at
org.apache.jackrabbit.oak.query.QueryEngineImpl.parseQuery(QueryEngineImpl.java:179)
at
org.apache.jackrabbit.oak.query.QueryEngineImpl.executeQuery(QueryEngineImpl.java:253)
at
org.apache.jackrabbit.oak.jcr.query.QueryManagerImpl.executeQuery(QueryManagerImpl.java:136)
... 23 common frames omitted
{noformat}
> JobManagerImpl.findJobs should prevent traversal
> ------------------------------------------------
>
> Key: SLING-8407
> URL: https://issues.apache.org/jira/browse/SLING-8407
> Project: Sling
> Issue Type: Improvement
> Components: Event
> Reporter: Thomas Mueller
> Priority: Major
>
> The method
> [JobManagerImpl.findJobs|https://github.com/apache/sling-org-apache-sling-event/blob/master/src/main/java/org/apache/sling/event/impl/jobs/JobManagerImpl.java#L373]
> runs a JCR query to find all jobs for a topic.
> It is possible that such a query is running while the repository isn't
> initialized yet, meaning while the index isn't available yet. What is
> happening in this case is that the query is traversing all nodes below that
> path, triggering a warning that the query doesn't use an index. It is
> sometimes happening when a health check is running before the repository is
> initialized (ReplicationQueueHealthCheck and DistributionQueueHealthCheck).
> It doesn't make sense that the query traverses the nodes. It should use an
> index. If the index isn't available yet, it should fail. Therefore, the query
> should use "option(traversal fail)". That would result in an exception that
> can be caught. I will log a related issue to change the health checks to
> process this exception and return HEALTH_CHECK_ERROR for this case.
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