Datastax Cassandra version 6
Hi, Anyone aware when is Datastax launching version 6 for Cassandra. Datastax claims that ver 6 gives double the performance than ver 5.1. Thanks Chandan Disclaimer The information in this email and any attachments may contain proprietary and confidential information that is intended for the addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, retention or use of the contents of this information is prohibited. When addressed to our clients or vendors, any information contained in this e-mail or any attachments is subject to the terms and conditions in any governing contract. If you have received this e-mail in error, please immediately contact the sender and delete the e-mail.
RE: Cassandra certification
Thanks for the answer Rahul. I actually wanted to know that if there is any other certification authority better than Datastax ? or is it the only one as of now ? From: Rahul Singh [mailto:rahul.xavier.si...@gmail.com] Sent: Saturday, March 24, 2018 3:38 PM To: user@cassandra.apache.org Subject: Re: Cassandra certification Recognized where? If someone has a Java certification and goes to a .NET shop that certificate means nothing. Same goes with a DataStax “certificate.” It’s a starting ground — can get you in the door at places that uses the technology but doesn’t substitute for experience. Both are important. -- Rahul Singh rahul.si...@anant.us<mailto:rahul.si...@anant.us> Anant Corporation On Mar 24, 2018, 5:38 AM -0700, Chandan Goel <cgo...@sapient.com<mailto:cgo...@sapient.com>>, wrote: Hi, Is the professional certification on Cassandra given by Datastax recognized ? Oreilly has stopped giving any certifications , it seems. Is there any other authority giving away certifications on Cassandra post clearing exam which is better than datastax? Or Datastax is sufficiently good , any idea anyone ? Thanks Chandan Disclaimer The information in this email and any attachments may contain proprietary and confidential information that is intended for the addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, retention or use of the contents of this information is prohibited. When addressed to our clients or vendors, any information contained in this e-mail or any attachments is subject to the terms and conditions in any governing contract. If you have received this e-mail in error, please immediately contact the sender and delete the e-mail. Disclaimer The information in this email and any attachments may contain proprietary and confidential information that is intended for the addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, retention or use of the contents of this information is prohibited. When addressed to our clients or vendors, any information contained in this e-mail or any attachments is subject to the terms and conditions in any governing contract. If you have received this e-mail in error, please immediately contact the sender and delete the e-mail.
Cassandra certification
Hi, Is the professional certification on Cassandra given by Datastax recognized ? Oreilly has stopped giving any certifications , it seems. Is there any other authority giving away certifications on Cassandra post clearing exam which is better than datastax? Or Datastax is sufficiently good , any idea anyone ? Thanks Chandan Disclaimer The information in this email and any attachments may contain proprietary and confidential information that is intended for the addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, retention or use of the contents of this information is prohibited. When addressed to our clients or vendors, any information contained in this e-mail or any attachments is subject to the terms and conditions in any governing contract. If you have received this e-mail in error, please immediately contact the sender and delete the e-mail.
RE: system_auth permissions issue C* 2.0.14
Hi Avinash, Please see if you have given permissions to the user (logged in) on the table and all related Materialized Views. Thanks Chandan From: pabbireddy avinash [mailto:pabbireddyavin...@gmail.com] Sent: Friday, November 03, 2017 3:06 PM To: user@cassandra.apache.org Subject: system_auth permissions issue C* 2.0.14 Hi, We are seeing system_auth related exceptions from application side on cassandra 2.0.14 . at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) [jersey-common-2.14.jar:na] at org.glassfish.jersey.internal.Errors.process(Errors.java:315) [jersey-common-2.14.jar:na] at org.glassfish.jersey.internal.Errors.process(Errors.java:297) [jersey-common-2.14.jar:na] ... 33 lines omitted ... Caused by: com.datastax.driver.core.exceptions.UnauthorizedException: User has no MODIFY permission on so that all nodes will have system_auth data . Please help me understand this issue . Regards, Avinash.
Cassandra | MODIFY keyword
Hi, I would be appreciative if you could help with below questions. I have two question on Modify keyword with respect to Cassandra(No SQL database). 1) Whenever we grant MODIFY permissions to Cassandra users, for example: GRANT MODIFY ON table1 TO User1; Then all four: Insert, Update, Delete and Truncate permissions are granted automatically. But out of the four I do not want to give Truncate permission because I do not want a user to mistakenly truncate a table. I tried giving individual permissions of Insert ,Update and delete but this way it does not work. Only the Modify keyword works. Is there a way I can grant only Insert, Update and Delete to users in Cassandra. 2) I also have another question regarding Modify. Why is it mandatory to give MODIFY permission explicitly to a Cassandra Materialized View even when related table already has MODIFY permission? Whenever a table in Cassandra is modified (data updated/deleted/inserted), the related materialized View(MV) is updated automatically. Why is it necessary to give explicit MODIFY permission to MV (Materialized Views) as well in order to execute a Insert/Update/Delete on the related table? Further-more the contradictory thing here is that a Modify command (Insert/Update/delete) cannot be executed altogether on MVs. So below CQL will fail even if the user has Modify access on MV - "delete from materializedView1 where id =10" Another issue is that whenever a new MV is created on the same table, then the table Modify will go for a toss, if Modify is not given/missed on the New MV. Thanks Chandan
