Hi, Did you disable CDCR buffer ? solr/<collection>/cdcr?action=DISABLEBUFFER
You can check with "cdcr?action=STATUS" Regards Dominique Le mar. 11 août 2020 à 10:57, Michel Bamouni <michel.bamo...@inrae.fr> a écrit : > Hello, > > > We had setup a synchronization between our solr instances on 2 datacenters > by using the CDCR. > until now, every thing worked fine but after an upgrade from solr 7.3 to > solr 7.7, we are facing an issue. > Indeed, our tlog files are not deleted even if we see the new values on > the two solr. > It is like that the hard commit doesn't occur. > In our solrconfig.xml file, we had configure the autocommit as below : > > > <autoCommit> > <maxTime>${solr.autoCommit.maxTime:15000}</maxTime> > <openSearcher>false</openSearcher> > </autoCommit> > > > and the softautocommit looks like that: > > <autoSoftCommit> > <maxTime>${solr.autoSoftCommit.maxTime:-1}</maxTime> > </autoSoftCommit> > > > if someone has already meet this issue, I'm looking for your return. > > > Best regards, > > > Michel > >