It happens to me like this. I have 2 node Cassandra cluster with one column space. No super columns.
Start server freshly (no commit logs, no SSTables, no saves caches, basically nothing). Then write process starts (not much write load). See what my log says: 2012-02-06 13:06:13,598 INFO [Gossiper] InetAddress /10.1.161.68 is now UP 2012-02-06 13:06:13,598 INFO [StorageService] Node /10.1.161.68 state jump to normal 2012-02-06 13:06:13,601 INFO [ColumnFamilyStore] Enqueuing flush of Memtable-LocationInfo@403316091(35/43 serialized/live bytes, 1 ops) 2012-02-06 13:06:13,601 INFO [Memtable] Writing Memtable-LocationInfo@403316091(35/43 serialized/live bytes, 1 ops) 2012-02-06 13:06:13,603 INFO [CassandraDaemon] Listening for thrift clients... 2012-02-06 13:06:13,714 INFO [Memtable] Completed flushing /data/cassandradb/data/system/LocationInfo-hc-64-Data.db (89 bytes) 2012-02-06 13:06:58,985 INFO [HintedHandOffManager] Started hinted handoff for token: 113427455640312814857969558651062452224 with IP: /10.1.161.63 2012-02-06 13:06:58,986 INFO [HintedHandOffManager] Finished hinted handoff of 0 rows to endpoint /10.1.161.63 2012-02-06 13:07:26,324 INFO [HintedHandOffManager] Started hinted handoff for token: 56713727820156407428984779325531226112 with IP: /10.1.161.68 2012-02-06 13:07:26,325 INFO [HintedHandOffManager] Finished hinted handoff of 0 rows to endpoint /10.1.161.68 111111111112012-02-06 14:06:13,083 INFO [AutoSavingCache] Saved WhispirCache-WhispirStandard-KeyCache (186 items) in 28 ms 11112012-02-06 14:24:45,579 WARN [Memtable] setting live ratio to minimum of 1.0 instead of 0.13675048407845158 2012-02-06 14:24:45,581 INFO [Memtable] CFS(Keyspace='WhispirCache', ColumnFamily='WhispirStandard') liveRatio is 1.0 (just-counted was 1.0). calculation took 137ms for 57 columns 2012-02-06 14:24:48,016 WARN [Memtable] setting live ratio to minimum of 1.0 instead of 0.10823538589289985 2012-02-06 14:24:48,016 INFO [Memtable] CFS(Keyspace='WhispirCache', ColumnFamily='WhispirStandard') liveRatio is 1.0 (just-counted was 1.0). calculation took 46ms for 119 columns 2012-02-06 14:24:52,279 WARN [Memtable] setting live ratio to minimum of 1.0 instead of 0.11414583341420956 2012-02-06 14:24:52,279 INFO [Memtable] CFS(Keyspace='WhispirCache', ColumnFamily='WhispirStandard') liveRatio is 1.0 (just-counted was 1.0). calculation took 78ms for 233 columns 2012-02-06 14:24:58,808 WARN [Memtable] setting live ratio to minimum of 1.0 instead of 0.12002818405606677 2012-02-06 14:24:58,808 INFO [Memtable] CFS(Keyspace='WhispirCache', ColumnFamily='WhispirStandard') liveRatio is 1.0 (just-counted was 1.0). calculation took 24ms for 490 columns 2012-02-06 14:25:08,477 WARN [Memtable] setting live ratio to minimum of 1.0 instead of 0.12033609444170106 2012-02-06 14:25:08,477 INFO [Memtable] CFS(Keyspace='WhispirCache', ColumnFamily='WhispirStandard') liveRatio is 1.0 (just-counted was 1.0). calculation took 75ms for 1001 columns 12012-02-06 14:28:28,284 WARN [Memtable] setting live ratio to minimum of 1.0 instead of 0.11954297494496129 2012-02-06 14:28:28,284 INFO [Memtable] CFS(Keyspace='WhispirCache', ColumnFamily='WhispirStandard') liveRatio is 1.0 (just-counted was 1.0). calculation took 69ms for 1544 columns -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/WARN-Memtable-live-ratio-tp7238582p7264583.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.
