Re: How to restrict users to specific DC.

2018-04-06 Thread Jim Witschey
Pranay, > Is it possible to restrict users to specific DC in cassandra, let's say an > user A is connecting to DC1 and executing queries, how to can I restrict that > user to that particular DC... This part sounds like a job for a DC-aware load-balancing policy in the driver. > ... just in

Re: Node failure

2017-10-06 Thread Jim Witschey
> Modern client drivers also have ways to “downgrade” the CL of requests, in > case they fail. E.g. for the Java driver: > http://docs.datastax.com/en/latest-java-driver-api/com/datastax/driver/core/policies/DowngradingConsistencyRetryPolicy.html Quick note from a driver dev's perspective:

Re: cqlsh -e output - How to change the default delimiter '|' in the output

2017-08-14 Thread Jim Witschey
Not knowing the problem you're trying to solve, I'm going to guess cqlsh is a bad tool for this job. If you want to put the results of CQL queries into a shell pipeline, a small custom script using a driver is probably a better fit, and should be possible to write without much effort.

Re: Cassandra version numbering

2017-02-23 Thread Jim Witschey
> Is ver 3.0.10 same as 3.10. They are different. In particular: - 3.0.10 contains the features in versions 3.0.0, but with bugfixes. It's the next in the series of 3.0.0, 3.0.1, 3.0.2, and so on to 3.0.9 and 3.0.10. Typically, 3.0.X releases don't add major features, instead being smaller

Re: Configure NTP for Cassandra

2016-12-13 Thread Jim Witschey
You might find more NTP experts on the NTP questions mailing list: http://lists.ntp.org/listinfo/questions On Tue, Dec 13, 2016 at 1:25 PM, Anuj Wadehra wrote: > Any NTP experts willing to take up these questions? > > Thanks > Anuj > > On Sun, 27 Nov, 2016 at 12:52 AM,

Re: Is a blob storage cost of cassandra is the same as bigint storage cost for long variables?

2016-09-12 Thread Jim Witschey
and loss of clarity in client code. Jim Witschey

Re: Subscribe to Cassandra Commit Log

2016-06-07 Thread Jim Witschey
> > is there any documentation for this feature > I'm not sure what the state of documentation is for Change Data Capture. The best docs may be the design document linked in the comments on the ticket, which I think is current. > perhaps what I am looking for is the reading the commit logs in

Re: Subscribe to Cassandra Commit Log

2016-06-05 Thread Jim Witschey
Have a look at CASSANDRA-8844, which is not merged to trunk yet, but will be soon: https://issues.apache.org/jira/browse/CASSANDRA-8844 On Sun, Jun 5, 2016 at 12:34 PM Vineet Mishra wrote: > Hi All, > > I am around with a use case to extract/fetch the Cassandra specific

Re: Leap sec

2015-05-15 Thread Jim Witschey
In addition, do I also have to upgrade to Java 7u60+ on C* servers as well. Yes -- we observed C* nodes locking up when running under older versions of the JDK. Jim Witschey Software Engineer in Test | jim.witsc...@datastax.com

Re: Leap sec

2015-05-15 Thread Jim Witschey
. Jim Witschey Software Engineer in Test | jim.witsc...@datastax.com

Re: Creating 'Put' requests

2015-04-23 Thread Jim Witschey
Are prepared statements what you're looking for? http://docs.datastax.com/en/developer/java-driver/2.1/java-driver/quick_start/qsSimpleClientBoundStatements_t.html Jim Witschey Software Engineer in Test | jim.witsc...@datastax.com On Thu, Apr 23, 2015 at 9:28 AM, Matthew Johnson matt.john

Re: timeout creating table

2015-04-20 Thread Jim Witschey
Jimmy, What's the exact command that produced this trace? Are you saying that the 16-second wait in your trace what times out in your CREATE TABLE statements? Jim Witschey Software Engineer in Test | jim.witsc...@datastax.com On Sun, Apr 19, 2015 at 7:13 PM, Jimmy Lin y2klyf+w...@gmail.com