Hi All, I have Solr Server on hardware 60GB RAM split 50GB Solr RAM and the OS. The search index size is 120GB and built offline. There are no updates to this index. I have 2 cores setup, they are completely identical. Except they are on 2 different disk drives.
The test run with the same 3 million queries/core. The medianRequestTime went from 1.24ms to 25ms. Performance is 20X worse. Examined - RAM usage and GC - very few full GC and nothing stands out as unusual - CPU usage is about 10% - Disk IO (currently collecting data) What other components should I be looking at? Is there any shared resource between 2 disks? Solr reported statistics below. Thanks Shweta Single Core CORE1 requests: 3077953 errors: 1580 timeouts: 0 totalTime: 115427000 avgRequestsPerSecond: 840.071468 5minRateReqsPerSecond: 371.1174956 15minRateReqsPerSecond: 871.0010528 avgTimePerRequest: 37.50122241 medianRequestTime: 1.245865 75thPcRequestTime: 1.9472615 95thPcRequestTime: 4.74148915 99thPcRequestTime: 7.27607746 999thPcRequestTime: 465.8678296 Dual Core CORE1 requests: 3077953 errors: 1580 timeouts: 0 totalTime: 485785273.2 avgRequestsPerSecond: 52.17154443 5minRateReqsPerSecond: 6.17E-53 15minRateReqsPerSecond: 1.21E-16 avgTimePerRequest: 157.827385 medianRequestTime: 25.30935 75thPcRequestTime: 64.17734025 95thPcRequestTime: 209.5386719 99thPcRequestTime: 382.1332734 999thPcRequestTime: 960.208626 CORE2 requests: 3077953 errors: 1580 timeouts: 0 totalTime: 485785273.2 avgRequestsPerSecond: 52.60462395 5minRateReqsPerSecond: 3.11E-52 15minRateReqsPerSecond: 2.07E-16 avgTimePerRequest: 157.827385 medianRequestTime: 25.30935 75thPcRequestTime: 64.17734025 95thPcRequestTime: 209.5386719 99thPcRequestTime: 382.1332734 999thPcRequestTime: 960.208626
