Re: Long start-up times
On Sun, Apr 15, 2012 at 2:47 PM, sj.climber wrote: > Also, I see in 1.0.9 there's a fix for a potentially related issue (see > https://issues.apache.org/jira/browse/CASSANDRA-4023). Any thoughts on > this? My thought is, upgrading is a no-brainer if that's a pain point for you. :) -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
Re: Long start-up times
Thanks, Edward. What do you suppose a reasonable value for index_interval might be? If I'm anyways setting keys_cached to 1.0, what would the implications be of setting index_interval very high (perhaps 1000, 1 or even higher--my data set involves a large number of smallish rows)? I imagine the first read for a given key would have higher latency, but subsequent reads would be unaffected (since they would use the key cache), no? Also, I see in 1.0.9 there's a fix for a potentially related issue (see https://issues.apache.org/jira/browse/CASSANDRA-4023). Any thoughts on this? Thanks again! -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Long-start-up-times-tp7468307p7468581.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.
Re: Long start-up times
This is normal although time seems on the higher side. Adjusting the IndexInterval should effect the sampling time. On Sun, Apr 15, 2012 at 1:32 PM, sj.climber wrote: > Hi, > > I have 2 column families with approx 50 GB of compressed data (~150GB > uncompressed). The data resides in a keyspace replicated 2-way, hosted by a > 2-node Cassandra cluster (v1.0.8), both with 74GB RAM and 16 cores. Key > caches are set to 1.0. > > I'm noticing that it can take upwards of 15+ minutes for the node to start > up (i.e. before it becomes responsive to thrift clients). During this time, > the logs suggest the system is blocked opening the data files. > > Is this expected behaviour? Are there any best practices for reducing node > startup time? > > Thanks in advance! > > -- > View this message in context: > http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Long-start-up-times-tp7468307p7468307.html > Sent from the cassandra-u...@incubator.apache.org mailing list archive at > Nabble.com.
