Re: Three questions about cassandra

Thanks! Hadmut

Re: Three questions about cassandra

There is a window after a node goes down that changes that node should have gotten will be kept. If the node is down LONGER than that, it will server stale data. If the consistency is greater than two, its data will be ignored (if consistency one, its data could be the first returned, if

Issues on upgrading from 2.2.3 to 3.0

Hello all, I had 2 of my systems upgraded to 3.0 from the same previous version. The first cluster seem to be fine. But the second, each node starts and then fails. On the log I have the following on all of them: INFO [main] 2015-11-27 19:40:21,168 ColumnFamilyStore.java:381 - Initializing

Huge ReadStage Pending tasks during startup

Hello! We have some strange troubles with cassandra startup. Cluster consists of 4 nodes. 32 Gb RAM per node, each node has about 30Gb of data, 8 CPU. root@vega010:~# nodetool version ReleaseVersion: 2.2.1 So, before stop (using disablethrift, drain): nodetool tpstats: Read Stage 0 0 3093579