Re: OOM on Apache Cassandra on 30 Plus node at the same time

Sent from my iPhone > On Mar 3, 2017, at 12:18 PM, Shravan Ch wrote: > > Hello, > > More than 30 plus Cassandra servers in the primary DC went down OOM exception > below. What puzzles me is the scale at which it happened (at the same > minute). I will share some more details below. > > Sy

RE: bulk load

? Could some one help me in this regard? Priyanka -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/bulk-load-tp6505627p6534280.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.

Re: Bulk Loading

, Priyanka -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Bulk-Loading-tp6348861p6537794.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.

Re: How to scale Cassandra?

. Thanks, Priyanka -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/How-to-scale-Cassandra-tp6545491p6549814.html Sent from the cassandra-u...@incubator.apache.org mailing list archive at Nabble.com.

Re: How to scale Cassandra?

Thanks a lot Sebastien. Did you use hadoop map reduce or bulk loading techniques for loading data? regards, Priyanka -- View this message in context: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/How-to-scale-Cassandra-tp6545491p6550029.html Sent from the cassandra-u

Re: bulk loading

Hello Torsten, I am working on Cassandra for last 4 weeks and am trying to load large amount of data.Data is in a csv file.I am trying to use the Bulk loading technique but am not clear with the process.Could you please explain the process for the bulk load? Thanks, Priyanka

Slow Reads

ize=None) This is very slow compared to MySQL. Am not sure whats going wrong here.Could some one let me know if there is any problem with my model. Any help in this regard is highly appreciated. Thank you. Regards, Priyanka -- View this message in context: http://cassandra-us

Re: Cassandra start/stop scripts

I do the same way... On Tue, Jul 26, 2011 at 1:07 PM, mcasandra [via cassandra-u...@incubator.apache.org] < ml-node+6622977-1598721269-336...@n2.nabble.com> wrote: > I need to write cassandra start/stop script. Currently I run "cassandra" to > start and kill -9 to stop. > > Is this the best way?

Re: Slow Reads

this is how my data looks “rowkey1”:{ “supercol1”:{ “col1”:T,”col2”:C} “supercol2”:{“col1”:C,”col2”:T } “supercol3”:{ “col1”:C,”col2”:T} } "rowkey2”:{ “supercol1”:{ “col1”:A,”col2”:A} “supercol2”:{“col1”:A,”col2”:T }

Re: Slow Reads

Thank you Indra for your suggestion. But the thing is apart from pulling data based on supercol in the below example I also need to query to pull the data based on a particular rowkey.If I change the model as u mentioned this query becomes slow. I need to do both the retrievals efficiently. -- Vie

Missing rows while scanning table using java driver

r of 1. Also I don't see any errors in the logs. -Priyanka

Re: Missing rows while scanning table using java driver

Thanks DuyHai for revert. There are going to be pauses between fetching pages. For that they do seem to have an option to save page state. I will try that out. -Priyanka On Wed, Feb 3, 2016 at 12:14 PM, DuyHai Doan wrote: > Why don't you use server-side paging feature instead of mess

Re: Missing rows while scanning table using java driver

doing earlier with tokens, thanks DuyHai for suggestion. -Priyanka On Wed, Feb 3, 2016 at 7:41 PM, Jack Krupansky wrote: > CL=ALL has no benefit is RF=1. > > Your code snippet doesn't indicate how you initialize and update the token > in the query. The ">" operator

Re: Slow Reads

issing sth here ? On Tue, Jul 26, 2011 at 11:59 AM, Philippe wrote: > i believe it's because it needs to read the whole row to get to your super > column. > > you might have to reconsider your model. > Le 26 juil. 2011 17:39, "Priyanka" a écrit : > > > >

Re: Slow Reads

? If you re-read the data does the query time > get faster? > > > > On Tue, Jul 26, 2011 at 11:59 AM, Philippe wrote: > >> i believe it's because it needs to read the whole row to get to your super >> column. >> >> you might have to recon

Re: Slow Reads

Yes am using hector for java On Wed, Jul 27, 2011 at 3:35 AM, CASSANDRA learner < cassandralear...@gmail.com> wrote: > R u using hector client for java > > > On Tue, Jul 26, 2011 at 11:17 PM, Priyanka wrote: > >> this is how my data looks >> “rowkey1”:{ >

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