Deleting database

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Ville Silventoinen wrote:
> On Thu, 22 Mar 2007, Richard Megginson wrote:
>
>> Ville Silventoinen wrote:
>>> I'm using Fedora DS 1.0.4. I've written an application that uses 
>>> Fedora DS and next I'm planning to write unit tests. I'm wondering 
>>> if there is a way to delete the whole userRoot database and create 
>>> it again? I searched the documentation and there seems to be a way 
>>> to create the database from command line, but no way to delete it, 
>>> except from the GUI?
>> Just delete the entry (e.g. delete cn=userRoot,cn=ldbm 
>> database,cn=plugins,cn=config).  You will have to do some sort of 
>> recursive deletion to remove all of the child entries.  I think this 
>> is what the GUI does - just check the access logs for the server 
>> after deleting the database in the console.
>
> Thank you Richard, that worked very well. I also delete the mapping 
> tree entry, which maps the suffix to the backend database:
>
>   dn: cn="dc=ebi,dc=ac,dc=uk",cn=mapping tree,cn=config
>   objectclass: top
>   objectclass: extensibleObject
>   objectclass: nsMappingTree
>   nsslapd-state: backend
>   nsslapd-backend: userRoot
>   cn: dc=ebi,dc=ac,dc=uk
>
> The GUI works slightly differently, it sets nsslapd-state to 
> "disabled" and removes the nsslapd-backend attribute.
>
> If anyone has a need for a script that can delete and create a 
> database, I can send it to the list. I use Python with python-ldap 
> package.
>
> Thank you very much for a fast response!
If you just want to restore the database to it's initial state, you can 
just do an import - ldif2db or ldif2db.pl - this will remove the 
previous contents and create a new database.  This might be sufficient 
for your purposes, without having to delete the database and mapping 
tree entries.  See ldif2db.pl for how to invoke an import operation via 
ldap - you can do something similar in python-ldap:

    def startTaskAndWait(self,entry,verbose=False):
        # start the task
        dn = entry.dn
        self.add_s(entry)
        entry = self.getEntry(dn, ldap.SCOPE_BASE)
        if not entry:
            if verbose:
                print "Entry %s was added successfully, but I cannot 
search it" % dn
                return -1
        elif verbose:
            print entry

        # wait for task completion - task is complete when the 
nsTaskExitCode attr is set
        attrlist = ['nsTaskLog', 'nsTaskStatus', 'nsTaskExitCode', 
'nsTaskCurrentItem', 'nsTaskTotalItems']
        done = False
        exitCode = 0
        while not done:
            time.sleep(1)
            entry = self.getEntry(dn, ldap.SCOPE_BASE, 
"(objectclass=*)", attrlist)
            if verbose:
                print entry
            if entry.nsTaskExitCode:
                exitCode = int(entry.nsTaskExitCode)
                done = True
        return exitCode

    def importLDIF(self,file,suffix,be=None,verbose=False):
        cn = "import" + str(int(time.time()));
        dn = "cn=%s, cn=import, cn=tasks, cn=config" % cn
        entry = Entry(dn)
        entry.setValues('objectclass', 'top', 'extensibleObject')
        entry.setValues('cn', cn)
        entry.setValues('nsFilename', file)
        if be:
            entry.setValues('nsInstance', be)
        else:
            entry.setValues('nsIncludeSuffix', suffix)

        rc = self.startTaskAndWait(entry, verbose)

        if rc:
            if verbose:
                print "Error: import task %s for file %s exited with %d" 
% (cn,file,rc)
        else:
            if verbose:
                print "Import task %s for file %s completed 
successfully" % (cn,file)
        return rc


>
> Ville
>
> -- 
> Fedora-directory-users mailing list
> Fedora-directory-users at redhat.com
> https://www.redhat.com/mailman/listinfo/fedora-directory-users
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