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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2451) a client can crash connections of another client
Date Thu, 05 Jul 2007 04:07:04 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12510273
] 

Bryan Pendleton commented on DERBY-2451:
----------------------------------------

Is this problem reproducible without using sqlworkbench/j? Can it be reproduced using just
NetworkServerControl and two IJ client sessions?

If so, can you post the exact IJ commands which the clients should issue to reproduce the
problem?


> a client can crash connections of another client
> ------------------------------------------------
>
>                 Key: DERBY-2451
>                 URL: https://issues.apache.org/jira/browse/DERBY-2451
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Server
>    Affects Versions: 10.2.2.0
>            Reporter: quartz
>            Priority: Critical
>
> Using 10.2.2.0.
> Steps to reproduce:
> 1-Start a NetworkServerControl
> 2-Start a 1st client (sqlworkbench/J), show some rows of some db, table X (stay connected)
> 3-Start a 2nd client (sqlworkbench/J), show some rows of some db, table X.
> 4-disconnect 2nd client
> 5-redo the 1st client query (refresh)
> You get a non architected message, sqlstate 58009, db errorcode -4499.
> In derby log, I see a shutdown of the database, and a restart.
> No matter how badly and corrupted a client connection can get, nor if the client connection
is
> a bug in any client,  such corruption should never destabilise a "server",
> certainly not other clients connections.
> It may be that the client tries to shutdown the DB; it shouldn't have such privilege
anyway since it
> is a network "client" connection, NOT  an embedded connection.

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