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From "Alex Karasulu (JIRA)" <directory-...@incubator.apache.org>
Subject [jira] Commented: (DIREVE-151) Shutting down server multiple times results in 'Failed to sync all'
Date Tue, 22 Mar 2005 06:47:26 GMT
     [ http://issues.apache.org/jira/browse/DIREVE-151?page=comments#action_61363 ]
     
Alex Karasulu commented on DIREVE-151:
--------------------------------------

First off what is Product X?  Just curious.

> Shutting down server multiple times results in 'Failed to sync all'
> -------------------------------------------------------------------
>
>          Key: DIREVE-151
>          URL: http://issues.apache.org/jira/browse/DIREVE-151
>      Project: Directory Server
>         Type: Bug
>     Versions: 0.9
>  Environment: Windows XP, J2SE 1.4.2_05, Apache 0.9 SNAPSHOT
>     Reporter: David Geleyn
>     Assignee: Alex Karasulu
>  Attachments: Test.java, out.txt
>
> Situation in which the error occurs:
> When shutting down server of Product X (which embeds Apache Directory Server) we 
> have some problems with shutting down the embeded LDAP server. One of the 
> reasons could be the addShutdownhook in RootNexus.java. When embedding the 
> LDAP server we need to add a shutdownhook ourselves to make sure the LDAP 
> server is gracefully shutdown (see code below). Among other things, the 
> shutdown of the embedded LDAP server seems to call the sync on the 
> RootNexus as well, causing an IllegalStateException as 2 separate threads 
> are accessing the RootNexus.
> Java API for System.exit:
> The virtual machine's shutdown sequence consists of two phases. In the 
> first phase all registered shutdown hooks, if any, are started in some 
> unspecified order and allowed to run concurrently until they finish. 
> Example of shutting down (which is implicitly a part of our shutdownhook):
> Properties env = new Properties();
> env.setProperty(Context.PROVIDER_URL, "ou=system");
> env.setProperty(Context.INITIAL_CONTEXT_FACTORY, 
> "org.apache.ldap.server.jndi.ServerContextFactory");
> env.setProperty(Context.SECURITY_PRINCIPAL, "uid=admin,ou=system");
> env.setProperty(Context.SECURITY_CREDENTIALS, "secret");
> env.setProperty(EnvKeys.SYNC, "true");
> env.setProperty(EnvKeys.SHUTDOWN, "true");
> new InitialDirContext(env);
> Maybe this is caused by the soluttion for bug report 
> http://issues.apache.org/jira/browse/DIREVE-92?
> I'm capable of reproducing this behavior in a small program which is attached.
> The program will ask for input (via System.in.read). When asked for input, please press
Control-C to exit. The program will call the shutdown hook multiple times and will result
in a 'Failed to sync all'.

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