Thanks Shawn for the clarification!
On 2022/06/22 14:03:43 Shawn Heisey wrote: > On 6/22/22 04:40, Poorna Murali wrote: > > Thanks everyone for the inputs on my post yesterday! It did help me to > > clarify the doubts. > > > > @David - I believe that the clearcache.sh you mentioned in the link ( > > https://www.tecmint.com/clear-ram-memory-cache-buffer-and-swap-space-on-linux/ ) > > will clear the solr caches and field cache too. Please correct me if I am > > wrong. > > That web page is talking about clearing memory structures in the Linux > operating system. It will clear any Solr index data that has ended up > in the OS disk cache, but it cannot touch Java memory, which means it > cannot touch Solr's caches. > > Clearing the disk cache (called pagecache on that page) will temporarily > cause Solr to run slower, because frequently accessed index data won't > be in memory. Disks are a LOT slower than memory. > > The best way to be completely sure that Solr's caches have been emptied > is reload the core. Restarting Solr will also work. Note that any > warming queries that have been defined in solrconfig.xml will begin > populating Solr's caches. > > Thanks, > Shawn > >
