i think that some ping like simple search or some periodical ldif specified by user could be a good thing it could be not mandatory and left for users own risk, but it could help me and others a lot.
You should switch to 1.5.3 :)
I am using apache directory studio 1.5.2
There is a very annoing issue with connections. If I leave connection open
for a long time open it gots frozen and it takes a long time to revive it.
sadly, there is nothing such as a 'keep-alive' request in LDAP. We could send a search for the rootDSE periodically, but frankly, considering that LDAP is a connected protocol, that means we will potentially have thousands of requests sent to the server just to deal with this problem. Not sure it worth the effort... (IMHO, of course)
Maybe it is possible to add some feature to connection properties like
"keepAlive" or something so that it is alway very quick to respond.