Fetch 1 millions record

Hi    I have to fetch around 1 millions row based on secondary index and update them and push back in cassandra based on partition key.please advise  Bset approch.i have to use a java client datastax driver.  Regards  Anil  Sent from Samsung Mobile Original message From: "Pee

Re: Read performance

Try breaking it up into smaller chunks using multiple threads and token ranges. 86400 is pretty large. I found ~1000 results per query is good. This will spread the burden across all servers a little more evenly. On Thu, May 7, 2015 at 4:27 AM, Alprema wrote: > Hi, > > I am writing an applicatio

Re: Read performance

I was planning on using a more "server-friendly" strategy anyway (by parallelizing my workload on multiple metrics) but my concern here is more about the raw numbers. According to the trace and my estimation of the data size, the read from disk was done at about 30MByte/s and the transfer between

Tracking ETA and % complete in nodetool netstats during a decommission ?

I’m trying to track the throughput of nodetool decommission so I can figure out how long until this box is out of service. Basically, I want a % complete, and a ETA on when the job will be done. IS this possible? Without opscenter? -- Founder/CEO Spinn3r.com Location: *San Francisco, CA* blog:

Re: Tracking ETA and % complete in nodetool netstats during a decommission ?

Not precisely, but you can estimate based on the streaming jobs in nodetool netstats. All the best, [image: datastax_logo.png] Sebastián Estévez Solutions Architect | 954 905 8615 | sebastian.este...@datastax.com [image: linkedin.png]