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Re: (ITS#6686) VLV overlay fails to handle multiple search operations per LDAP connection

sebastien.bahloul@gmail.com wrote:
> Full_Name: Sebastien Bahloul
> Version: HEAD
> OS: Linux RHEL 5
> URL:
> Submission from: (NULL) (
> Hi,
> I think there is a bug / limitation inside VLV implementation : it can not
> handle multiple search operation on a single connection. The first operation
> succeeds and next operations fail with the following message :
> LDAP: error code 51 - Other sort requests already in progress

> But I think this issue is more global. This implementation seems to be able to
> only handle a single VLV context per connection.

Correct, that is by design.

> If I am right, this is related with the indexing method of sort_conns structure
> which seems to be based only on the connection id. I suggest to implement a
> double indexing array by connection id / VLV context id.

I have no interest in extending this. It would require much more overhead to 
protect the slapd from getting overloaded by too many such requests.

   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/