cqlsh

I have a three nodes Cassandra Cluster and I have created one table which has more than 2,000,000 rows. When I execute this ( select count(*) from userdetails ) query in cqlsh, I got this error: OperationTimedOut: errors={}, last_host=192.168.1.2 When I run count function for less row or with limit 50,000 it works fine. count(*) actually pages through all the data. So a select count(*) from userdetails without a limit would be expected to timeout with that many rows. Some details here: http://planetcassandra.org/blog/counting-key-in-cassandra/ You may want to consider maintaining the count

I have a cassandra node at a machine. When I access cqlsh from the same machne it works properly. But when I tried to connect to it's cqlsh using "192.x.x.x" from another machine, I'm getting an error saying Connection error: ('Unable to connect to any servers', {'192.x.x.x': error(111, "Tried connecting to [('192.x.x.x', 9042)]. Last error: Connection refused")}) What is the reason for this? How can I fix it? Nicola Ferraro Probably the remote Cassandra node is not bound to the external network interface but to the loopback one (this is the default configuration). You can ensure this by using

I'm inserting into a Cassandra table with timestamp columns. The data I have comes with microsecond precision, so the time data string looks like this: 2015-02-16T18:00:03.234+00:00 However, in cqlsh when I run a select query the microsecond data is not shown, I can only see time down to second precision. The 234 microseconds data is not shown. I guess I have two questions: 1) Does Cassandra capture microseconds with timestamp data type? My guess is yes? 2) How can I see that with cqlsh to verify? Table definition: create table data ( datetime timestamp, id text, type text, data text, primary

I've just started working with Cassandra (datastax), version 2.1.3 and cqlsh version 5.0.1. Cassandra starts up fine and the cluster is operational instantly. Cqlsh is not working (on any of the nodes) and emits the following error: Connection error: ('Unable to connect to any servers', {'127.0.0.1': error(111, "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")}) I have tried starting cqlsh up with the hosts own ip, other hosts ip, different ports yet the result remains the same - always connection refused. Ruba Try to change the rpc_address to point to the node's IP