Re: [EXTERNAL] Apache Cassandra upgrade path

2019-07-26 Thread Jai Bheemsen Rao Dhanwada
yes correct, it doesn't work for the servers. trying to see if any had any workaround for this issue? (may be changing the protocol version during the upgrade time?) On Fri, Jul 26, 2019 at 1:11 PM Durity, Sean R wrote: > This would handle client protocol, but not streaming protocol between > no

Cheat Sheet for Unix based OS, Performance troubleshooting

2019-07-26 Thread Krish Donald
Any one has Cheat Sheet for Unix based OS, Performance troubleshooting ?

RE: [EXTERNAL] Apache Cassandra upgrade path

2019-07-26 Thread Durity, Sean R
This would handle client protocol, but not streaming protocol between nodes. Sean Durity – Staff Systems Engineer, Cassandra From: Alok Dwivedi Sent: Friday, July 26, 2019 3:21 PM To: user@cassandra.apache.org Subject: Re: [EXTERNAL] Apache Cassandra upgrade path Hi Sean The recommended practi

Re: [EXTERNAL] Apache Cassandra upgrade path

2019-07-26 Thread Alok Dwivedi
Hi Sean The recommended practice for upgrade is to explicitly control protocol version in your application during upgrade process. Basically the protocol version is negotiated on first connection and based on chance it can talk to an already upgraded node first which means it will negotiate a highe

Re: [EXTERNAL] Apache Cassandra upgrade path

2019-07-26 Thread Jai Bheemsen Rao Dhanwada
Thanks Sean, In my use case all my clusters are multi DC, and I am trying my best effort to upgrade ASAP, however there is a chance since all machines are VMs. Also my key spaces are not uniform across DCs. some are replicated to all DCs and some of them are just one DC, so I am worried there. Is

RE: [EXTERNAL] Apache Cassandra upgrade path

2019-07-26 Thread Durity, Sean R
What you have seen is totally expected. You can’t stream between different major versions of Cassandra. Get the upgrade done, then worry about any down hardware. If you are using DCs, upgrade one DC at a time, so that there is an available environment in case of any disasters. My advice, though

Apache Cassandra upgrade path

2019-07-26 Thread Jai Bheemsen Rao Dhanwada
Hello, I am trying to upgrade Apache Cassandra from 2.1.16 to 3.11.3, the regular rolling upgrade process works fine without any issues. However, I am running into an issue where if there is a node with older version dies (hardware failure) and a new node comes up and tries to bootstrap, it's fai

Re: When Apache Cassandra 4.0 will release?

2019-07-26 Thread Simon Fontana Oscarsson
Hi, To my knowledge there is no set date for 4.0, the community is prioritizing QA over fast release which I think is great! Anytime during Q4 is suggested. See the latest information from the dev mailing list: https://lists.apache.org/thread.html/1a768d057d1af5a0f373c4c399a2 3e65cb04c61bbfff612634

When Apache Cassandra 4.0 will release?

2019-07-26 Thread bhaskar pandey
Hi, When Apache Cassandra 4.0 will release? Any specific time line? I am eagerly waiting for audit log. Regards, - To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassan

Openings in BayArea/Remote for Cassandra Admin

2019-07-26 Thread Krish Donald
Hi, This community is very helpful. Looking for any pointers. Anyone knows any opening in your team for Cassandra Admin skill in BayArea / Remote? Please send me email . Thanks Krish

Re: Performance impact with ALLOW FILTERING clause.

2019-07-26 Thread Christian Lorenz
Hi, did you also consider to “tame” your spark job by reducing it’s executors? Probably the Job will have a longer runtime in exchange to reducing the stress on the Cassandra cluster. Regards Christian Von: "ZAIDI, ASAD A" Antworten an: "user@cassandra.apache.org" Datum: Donnerstag, 25. Juli

Re: Materialized View's additional PrimaryKey column

2019-07-26 Thread Christian Lorenz
I fully agree to Jon here. We previously also used MV’s and major problems popped up on decommissioning/commissioning nodes. After replacing them by doing the MV’s job “manually” by code, we did not face those issues anymore. Regards, Christian Von: Jon Haddad Antworten an: "user@cassandra.apa

Re: high write latency on a single table

2019-07-26 Thread CPC
In the mean time we opened traces and found that normal insert operations does not have high latency. Delete operations have high latency. And all deletes are range deletes. Is there any performance regression about range deletes? Mean time of delete operations are 45 times higher than insert opera