I am testing on one node only right now and simply adding data and reading it. There is no real problem but I feel I get differencing results from the tests depending on something I would like to know what it is. What is happening between two "points in time"
-->Here is a point with Slower result INFO 08:12:02,113 Creating new commitlog segment /srv/cassandra/commitlog/CommitLog-1280383922113.log INFO 08:12:06,872 Completed flushing /srv/cassandra/data/MyGames/Game1-207-Data.db INFO 08:12:11,950 Compacted to /srv/cassandra/data/MyGames/EssentialGame1-57-Data.db. 321936296/319836199 bytes for 2000 keys. Time: 10659ms. INFO 08:13:23,221 Creating new commitlog segment /srv/cassandra/commitlog/CommitLog-1280384003221.log INFO 08:13:24,401 Game1 has reached its threshold; switching in a fresh Memtable at CommitLogContext(file='/srv/cassandra/commitlog/CommitLog-1280384003221.log', position=7180218) INFO 08:13:24,402 Enqueuing flush of memtable-ga...@2027049345(65162130 bytes, 3145758 operations) INFO 08:13:24,406 Writing memtable-ga...@2027049345(65162130 bytes, 3145758 operations) INFO 08:13:28,365 Completed flushing /srv/cassandra/data/MyGames/Game1-208-Data.db INFO 08:13:35,327 Deleted /srv/cassandra/data/MyGames/EssentialGame1-56-Data.db INFO 08:13:35,348 Deleted /srv/cassandra/data/MyGames/EssentialGame1-52-Data.db INFO 08:13:35,369 Deleted /srv/cassandra/data/MyGames/EssentialGame1-53-Data.db INFO 08:13:35,390 Deleted /srv/cassandra/data/MyGames/EssentialGame1-55-Data.db INFO 08:38:47,378 Creating new commitlog segment /srv/cassandra/commitlog/CommitLog-1280385527378.log INFO 08:49:03,295 Game1 has reached its threshold; switching in a fresh Memtable at CommitLogContext(file='/srv/cassandra/commitlog/CommitLog-1280385527378.log', position=25079957) INFO 08:49:03,296 Enqueuing flush of memtable-ga...@1607706649(65162710 bytes, 3145786 operations) INFO 08:49:03,296 Writing memtable-ga...@1607706649(65162710 bytes, 3145786 operations) INFO 08:49:07,948 Completed flushing /srv/cassandra/data/MyGames/Game1-209-Data.db INFO 08:49:07,949 Compacting [org.apache.cassandra.io.SSTableReader(path='/srv/cassandra/data/MyGames/Game1-206-Data.db'),org.apache.cassandra.io.SSTableReader(path='/srv/cassandra/data/MyGames/Game1-207-Data.db'),org.apache.cassandra.io.SSTableReader(path='/srv/cassandra/data/MyGames/Game1-208-Data.db'),org.apache.cassandra.io.SSTableReader(path='/srv/cassandra/data/MyGames/Game1-209-Data.db')] INFO 08:49:23,920 Compacted to /srv/cassandra/data/MyGames/Game1-210-Data.db. 443120374/443120374 bytes for 898844 keys. Time: 15970ms. INFO 08:50:17,479 Creating new commitlog segment /srv/cassandra/commitlog/CommitLog-1280386217479.log -->Here is a point with faster result again This is no absolute position in time, but I would like to know because I could probably configure Cassandra better. Regards from Sweden Justus Thorvaldsson AB SVENSKA SPEL 106 10 Stockholm Sturegatan 11, Sundbyberg Växel +46 8 757 77 00 http://svenskaspel.se
