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From Jørgen Løland (JIRA) <j...@apache.org>
Subject [jira] Updated: (DERBY-3184) Replication: Connection attempts to a database in slave mode must fail
Date Fri, 09 Nov 2007 06:53:50 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3184?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jørgen Løland updated DERBY-3184:

    Attachment: derby-3184-1.stat

The attached patch, v1, adds boolean inReplicationSlaveMode to TopService. When Module.findService
is called, TopService.isInReplicationSlaveMode is called, and an exception is raised if the
method returns true.

Also modifies classes that call Monitor.findService to handle the new exception.

The patch is ready for review and has passed all tests except triggerGeneral, which has already
been reported in http://article.gmane.org/gmane.comp.apache.db.derby.devel/50419

> Replication: Connection attempts to a database in slave mode must fail
> ----------------------------------------------------------------------
>                 Key: DERBY-3184
>                 URL: https://issues.apache.org/jira/browse/DERBY-3184
>             Project: Derby
>          Issue Type: Sub-task
>          Components: Services
>    Affects Versions:
>            Reporter: Jørgen Løland
>            Assignee: Jørgen Løland
>         Attachments: derby-3184-1.diff, derby-3184-1.stat
> When a database 'X' is booted in slave mode, the call to  Monitor.startPersistentService("X",...)
will not complete because the call gets stuck in LogToFile#recover. This is intentional.
> For as long as startPersistentService is blocked, however, other threads that try to
connect to 'X' (effectively calling Monitor.findService("X", ...)) will also hang. This is
unacceptable, and needs to raise an error.

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