Theoretically if this script gets executed, solr is already dead and the memory is retrieved
> On Jun 22, 2022, at 11:04 AM, Poorna Murali <[email protected]> wrote: > > 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 >> >>
