Re: Why is yum pulling in open JDK ?

Hi, I am very aware that Cassandra needs Java. I was just wondering why 'openjdk' is the dependency while it is advised to use the Oracle Java. regards, Wim 2014-07-06 21:54 GMT+02:00 Patricia Gorla : > Wim, > > > openjdk > > Java is a dependency of Cassandra, so if you do not have Java alrea

Cassandra coordinator metrics

Hi, I found that 2.0.9 exposes "CoordinatorReadLatency" and "CoordinatorScanLatency" on a column family resolution. 1. What exactly does the CoordinatorScanLatency means? 2. Is there a write equivalent metric? -- Or Sher

Re: Why is yum pulling in open JDK ?

Wim, > openjdk Java is a dependency of Cassandra, so if you do not have Java already installed on your computer, yum will automatically do so. The Oracle Java JVM must be installed separately. > dsc20, cassandra20 The first installation target is for Datastax Community version 2.0, while the la

Best practice to store large keys (>= 64 KByte)

Hi Cassandra users, I'm wondering if there are any best practices to use keys (>= 64 KByte). I'm aware that there is a Cassandra restriction for this [1]. However, my application requires that some keys may be >= 64 KByte. I'm currently trying a simple hash-table solution: //key BLOB may be

Re: How to perform Range Queries in Cassandra

Ramirez, If you partition your data correctly speed will be ~proportional. But there's always an upper limit - a slow range query that executes on a single node (using cluster key) will always be a slow. Cheers, Jens — Sent from Mailbox On Sun, Jul 6, 2014 at 8:04 AM, Rameez Thonnakkal w