Do someone known Why the query is very slow before the optimize end of a few minutes.
When the solr optimize, I have a loop query( curl "query url" and sleep one second) every one second to check the query speed. It is normal, the query time can be accept. But it always very slow before the optimize end of a few minutes. The solr index size is about 22G after optimized. The follows is the query time cost, CPU and IO usage. The whole optimize process, the IO is high, it can be understand. time query time(ms) CPU % r/s w/s rMB/s wMB/s IO % 7:30:24 12 89 156.44 0 16.4 0 94.06 7:30:25 18 91 157 0 15.35 0 98.1 7:30:26 9 91 194 0 19.62 0 96.1 7:30:27 14 38 352 0 38.17 0 100.1 7:30:28 30 77 205.94 16.83 20.17 4.02 98.51 7:30:30 101 88 396 0 45.99 0 90.7 7:30:31 11 90 120 0 11.34 0 97.5 7:30:32 38 89 262.38 0 28.03 0 96.24 7:30:33 11 78 68 17 4.89 4.93 99.9 7:30:34 9 29 201 0 20.16 0 100.3 7:30:35 9 87 181 0 17.27 0 94.3 7:30:52 16594 26 36 0 0.14 0 99.3 7:30:53 31 80 368 0 42.43 0 94.3 7:31:23 28575 41 35 21 0.37 2.36 95.9 7:31:27 2676 60 127 0 13.76 0 83.5 7:31:28 8 59 279 0 30.99 0 99.4 7:32:22 53399 31 81 39 0.74 2.63 99.5 7:32:23 11 54 155 0 16.46 0 99.6 7:32:24 9 47 63.37 4.95 4.18 0.02 98.42 7:32:25 9 25 34 0 0.13 0 98.8 7:32:26 8 27 30 0 0.12 0 99.9 7:33:28 60199 28 30 2 0.12 0.01 99.8 Thanks, __________________________________________________________________________________________ Jeffery Wang
