During Solr index rebuild process, solrserver-stderr throws error "Connection timed out: connect"
During Solr index rebuild process, sometimes, there is error error "Connection timed out: connect" throws from solrserver-stderr log. And Customer found that this Monday, Solr Admin Page can't access. Then restart Solr Server will makes Solr Server active again.
Customer have 1500,000+ items need to rebuild. Bulk index process is keep running for 10 days, currently, still 300,000 items waiting in BulkIndex Queue
1. Customer need to know why Solr Server can not be connected after quite long time bulk indexing process.
2. Is it issue about network or memory insufficient?