issue will no longer be a concern in any system.logs,
nodetool describecluster commands, nor nodetool gossipinfo output.
-Original Message-
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Thursday, April 04, 2019 10:40 AM
To: user@cassandra.apache.org
Subject: RE
Alex,
Did you remove the option JVM_OPTS="$JVM_OPTS
-Dcassandra.replace_address=address_of_dead_node after the node started and
then restart the node again?
Are you sure there isn't a typo in the file?
Ken
-Original Message-----
From: Kenneth Brotman [mailto:kenbrot...@yahoo.c
ce
is local strategy, it's not replicated, and thus can't be repaired.
On Thu, Apr 4, 2019 at 9:54 AM Kenneth Brotman
wrote:
>
> Right, could be similar issue, same type of fix though.
>
> -Original Message-
> From: Jon Haddad [mailto:j...@jonhaddad.com]
> Sent:
t; keyspaces that use LocalStrategy. Here's the definition of the system
> keyspace:
>
> CREATE KEYSPACE system WITH replication = {'class': 'LocalStrategy'}
> AND durable_writes = true;
>
> Jon
>
> On Thu, Apr 4, 2019 at 9:03 AM Kenneth Br
only
works on non-local tables. Changing the CL doesn't help with
keyspaces that use LocalStrategy. Here's the definition of the system
keyspace:
CREATE KEYSPACE system WITH replication = {'class': 'LocalStrategy'}
AND durable_writes = true;
Jon
On Thu, Apr 4, 2019
The trick below I got from the book Mastering Cassandra. You have to set the
consistency to ALL for it to work. I thought you guys knew that one.
From: Alain RODRIGUEZ [mailto:arodr...@gmail.com]
Sent: Thursday, April 04, 2019 8:46 AM
To: user cassandra.apache.org
Subject: Re: Assassinate fa
Hi Alex,
You might have inconsistent data in your system tables. Try setting the
consistency level to ALL, then do read query of system tables to force repair.
Kenneth Brotman
From: Alex [mailto:m...@aca-o.com]
Sent: Thursday, April 04, 2019 1:58 AM
To: user@cassandra.apache.org
different than AI) and config management.
For us it is a combo of custom Java workflows and Saltstack.
On Thu, Mar 28, 2019, 5:03 AM Kenneth Brotman
wrote:
I’m looking to get a better feel for how people use Cassandra in practice. I
thought others would benefit as well so may I ask you
o you use artificial intelligence to help manage your clusters?
Thank you for taking your time to share this information!
Kenneth Brotman
I found their YouTube video, Machine Learning & The future of DevOps – An Intro
to Vorstella: https://www.youtube.com/watch?v=YZ5_LAXvUUo
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Tuesday, March 05, 2019 11:50 AM
To: user@cassandra.apache.org
Subject: RE: Loo
the
query?
If you could have tagid not be a collection, and make it part of the primary
key, that would help a lot.
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Tuesday, March 05, 2019 4:33 PM
To: user@cassandra.apache.org
Subject: RE: data modelling
Hi Bobbie
Hi Bobbie,
You’re not giving enough information to model the data. With Cassandra it’s
based on the queries you are going to need. This link to Jeffrey Carpenter’s
book, Cassandra the Definitive Guide, Chapter 5, which is on how to do data
modeling for Cassandra, should be of help to you:
answers already! Really very promising!
Thanks,
Kenneth Brotman
From: AxonOps [mailto:axon...@digitalis.io]
Sent: Sunday, March 03, 2019 7:51 AM
To: user@cassandra.apache.org
Subject: Re: AxonOps - Cassandra operational management tool
Hi Kenneth,
Thanks for your great feedback
for feedback on automated root-cause system
We probably will, that'll come soon-ish (a couple of weeks perhaps). Right now
we're limited by who we can engage with in order to collect feedback.
On Tue, Mar 5, 2019 at 11:34 AM Kenneth Brotman
wrote:
Simulators will never get you t
, targeting different versions of C*, running with
different topologies, using clean disks or restoring from previous snapshots.
As the corpus grows simulations mater less, and it's easier to get signal from
noise in a customer cluster.
On Tue, Mar 5, 2019 at 10:15 AM Kenneth Brotm
you able to get that much good quality
data?
Kenneth Brotman
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com]
Sent: Tuesday, March 05, 2019 10:01 AM
To: 'user@cassandra.apache.org'
Subject: RE: Looking for feedback on automated root-cause system
I see they have a website no
ngs we've
found. For example everything everyone thought they knew about Cassandra thread
pool tuning is wrong, nobody really knows how to tune Kafka for large messages,
or that there are major issues with the Kubernetes charts that people are using.
On Tue, Feb 19, 2019 at 4:40 PM Kenn
e you mentioned were really
good.
The entire article is very good, but I wonder if it's still valid since it was
created around 4 years ago.
Thanks!
On Mon, Mar 4, 2019 at 9:37 PM Kenneth Brotman
wrote:
Makes sense If you have time and don’t mind, could you answer the foll
unity that has already experienced in this type of change.
Thanks!
On Mon, Mar 4, 2019 at 8:27 PM Kenneth Brotman
wrote:
It sounds like your use case might be appropriate for tuning those two settings
some.
How many nodes are in the cluster?
Are both settings definitely on the de
ds to be slower
max_hints_delivery_threads: 2
Thanks for your help!
On Mon, Mar 4, 2019 at 6:44 PM Kenneth Brotman
wrote:
What is the concern? Why are you looking there? The casssandra.yml file has
some notes about it. Did you read them?
From: shalom sagges [mailto:shalomsag...@g
What is the concern? Why are you looking there? The casssandra.yml file has
some notes about it. Did you read them?
From: shalom sagges [mailto:shalomsag...@gmail.com]
Sent: Monday, March 04, 2019 7:22 AM
To: user@cassandra.apache.org
Subject: A Question About Hints
Hi All,
Does an
From: Dipan Shah [mailto:dipan@hotmail.com]
Sent: Monday, March 04, 2019 12:52 AM
To: Kenneth Brotman; user@cassandra.apache.org
Subject: Re: MV's stuck in build state
Hello Kenneth,
Apologies for the late reply.
1) On production the value of x was 67 MB and y w
Sorry, Nitan was only making a comment about this post but the comments I’m
making are to AxonOps.
It appears we don’t have a name for anyone at AxonOps at all then! You guys
are going to need to be more open.
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Saturday
be able to do several of the things that
you listed.
How much added value are you providing with this product? It’s up to you to
make the case. You’ll have to spend more time on the business side of things
if you want to do any business.
Kenneth Brotman
From: AxonOps [mailto:axon
d directly hitting the
org.apache.cassandra.db:type=CompactionManager mbean's stopCompaction
operation?
From: Dipan Shah [mailto:dipan@hotmail.com]
Sent: Friday, March 01, 2019 12:56 AM
To: Kenneth Brotman; user@cassandra.apache.org
Subject: Re: MV's stuck in build sta
in the stackoverflow.com post you cited?
Kenneth Brotman
From: Dipan Shah [mailto:dipan@hotmail.com]
Sent: Thursday, February 28, 2019 2:23 AM
To: Dipan Shah; user@cassandra.apache.org
Subject: Re: MV's stuck in build state
Forgot to add version info. This is on 3.7.
[cqlsh 5.0.1 | Ca
Hi John,
Was the cluster running ok before decommissioning the node?
Why were you decommissioning the node?
Were you upgrading from 3.11.1 to 3.11.4?
From: Ioannis Zafiropoulos [mailto:john...@gmail.com]
Sent: Wednesday, February 27, 2019 7:33 AM
To: user@cassandra.apache.org
Subject
is constant as of now but we are expecting lot many different values
to come in
future.
Secondly, is Presto a distributed system ?
Thanks and Regards,
Goutham.
On Wed, Feb 27, 2019 at 5:09 PM Kenneth Brotman
wrote:
If you know the value already, why do you need to store it in
If you know the value already, why do you need to store it in every row of a
table? Seems like something is wrong. Why do you need to do that, if you can
share that information?
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com]
Sent: Wednesday, February 27, 2019 5:08 PM
To: '
I meant to say, what about using Presto?
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Wednesday, February 27, 2019 4:59 PM
To: user@cassandra.apache.org
Subject: RE: Insert constant value for all the rows for a given column
Who are Presto?
From: Goutham reddy
option and we are looking
out for some hack way to update the column.
On Wed, Feb 27, 2019 at 4:48 PM Kenneth Brotman
wrote:
Ouch! I was sure I saw it in some material I studied but no. It looks like
you have to provide the value before Cassandra, maybe through your application
or
looking
out for some hack way to update the column.
On Wed, Feb 27, 2019 at 4:48 PM Kenneth Brotman
wrote:
Ouch! I was sure I saw it in some material I studied but no. It looks like
you have to provide the value before Cassandra, maybe through your application
or something in the stream
Ouch! I was sure I saw it in some material I studied but no. It looks like
you have to provide the value before Cassandra, maybe through your application
or something in the stream before Cassandra, or add it after Cassandra or use
something like Spark to process it.
Kenneth Brotman
How about using a default value on the column?
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Wednesday, February 27, 2019 4:23 PM
To: user@cassandra.apache.org
Subject: RE: Insert constant value for all the rows for a given column
Good point.
From: Goutham reddy
Correct me if my
understanding is wrong.
Regards
Goutham Reddy
On Wed, Feb 27, 2019 at 4:08 PM Kenneth Brotman
wrote:
Sounds like what’s called a “static column”.
From: Goutham reddy [mailto:goutham.chiru...@gmail.com]
Sent: Wednesday, February 27, 2019 4:06 P
Hello,
Why would you want to do that?
From: Jai Bheemsen Rao Dhanwada [mailto:jaibheem...@gmail.com]
Sent: Wednesday, February 27, 2019 3:57 PM
To: user@cassandra.apache.org
Subject: Disable Truststore CA check for internode_encryption
Hello,
Is it possible to disable truststore
Here’s a DataStax article called Sharing a static column:
https://docs.datastax.com/en/cql/3.3/cql/cql_using/refStaticCol.html
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com]
Sent: Wednesday, February 27, 2019 4:08 PM
To: 'user@cassandra.apache.org'
Subject: RE: Insert cons
Sounds like what’s called a “static column”.
From: Goutham reddy [mailto:goutham.chiru...@gmail.com]
Sent: Wednesday, February 27, 2019 4:06 PM
To: user@cassandra.apache.org
Subject: Insert constant value for all the rows for a given column
Hi,
We have a requirement to add constant value
A real quick way to get an idea might be to run nodetool status and look at the
imbalance of the data on each node assuming all the nodes have the same specs.
From: Cameron Gandevia [mailto:cameron.gande...@globalrelay.net]
Sent: Monday, February 25, 2019 3:00 PM
To: user@cassandra.apache.org
, book, article, course, etc.
Date of production
Author/Presenter
Publisher/Producer/Event
Thank you for the continuing effort you have made on this project Rahul!
Kenneth Brotman
From: Rahul Singh [mailto:rahul.xavier.si...@gmail.com]
Sent: Monday, February 25, 2019 7:05 AM
To
Hi Abdul,
system.local I believe has the info you would want. Here is a link about
querying the system keyspace:
https://docs.datastax.com/en/cql/3.3/cql/cql_using/useQuerySystem.html
Kenneth Brotman
From: Abdul Patel [mailto:abd786...@gmail.com]
Sent: Monday, February 25, 2019 7
Sounds like a promising step forward. I’d certainly like to know when the blog
posts are up.
Kenneth Brotman
From: Matt Stump [mailto:mrevilgn...@gmail.com]
Sent: Friday, February 22, 2019 7:56 AM
To: user
Subject: Re: Looking for feedback on automated root-cause system
For some
| timestamp | source| source_elapsed
| client
--++---++---
7;t show tombstone scan alerts. Has the
reads are happening 5-8k reads per node during the peak hours it shows 1M
tombstone scans count per read.
On Fri, Feb 22, 2019, 11:46 AM Jeff Jirsa wrote:
If all of your data is TTL’d and you never explicitly delete a cell without
using s TTL, you
peak hours it shows 1M
tombstone scans count per read.
On Fri, Feb 22, 2019, 11:46 AM Jeff Jirsa wrote:
If all of your data is TTL’d and you never explicitly delete a cell without
using s TTL, you can probably drop your GCGS to 1 hour (or less).
Which compaction strategy are you
-patterns-queues-and-queue-like-datasets
Kenneth Brotman
From: Jeff Jirsa [mailto:jji...@gmail.com]
Sent: Saturday, February 23, 2019 4:47 PM
To: user@cassandra.apache.org
Subject: Re: Tombstones in memtable
Would also be good to see your schema (anonymized if needed) and the select
Can we see the histogram? Why wouldn’t you at times have that many tombstones?
Makes sense.
Kenneth Brotman
From: Rahul Reddy [mailto:rahulreddy1...@gmail.com]
Sent: Thursday, February 21, 2019 7:06 AM
To: user@cassandra.apache.org
Subject: Tombstones in memtable
We have small
primary key should have a compound partition
key of (project_id, policy_id, device_id).
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Thursday, February 21, 2019 3:38 PM
To: user@cassandra.apache.org
Subject: RE: Group By Does Not Follow Clustering Order
Joseph
re already doing “policy_id=7331 and device_id=’1234567890’” and returning one
(limit 1)?
Kenneth Brotman
From: Joseph Wonesh [mailto:joseph.won...@sticknfind.com]
Sent: Thursday, February 21, 2019 10:39 AM
To: user@cassandra.apache.org
Subject: Re: Group By Does Not Follow Clustering Order
Hi Rajsekhar,
I think monitoring the CompactionManagerMBean is what you need.
Kenneth Brotman
From: Rajsekhar Mallick [mailto:raj.mallic...@gmail.com]
Sent: Friday, February 15, 2019 8:59 AM
To: user@cassandra.apache.org
Subject: Unable to track compaction completion
Hello team
in the last email too not CASSANDRA-8527. But
it shouldn’t be this since you are on 3.11.3.
I think number three above answers your questions based on your original post.
See the article for the details. It’s really good.
Kenneth Brotman
From: Kenneth Brotman [mailto:kenbrot
Undetectable tombstones in Apache Cassandra:
http://thelastpickle.com/blog/2018/07/05/undetectable-tombstones-in-apache-cassandra.html
.
I thought that was resolved in 3.11.2 by CASSANDRA-8527; and you are running
3.11.3! Is there still an outstanding issue?
Kenneth Brotman
From: Ayub
Any information you can share on the inputs it needs/uses would be helpful.
Kenneth Brotman
From: daemeon reiydelle [mailto:daeme...@gmail.com]
Sent: Tuesday, February 19, 2019 4:27 PM
To: user
Subject: Re: Looking for feedback on automated root-cause system
Welcome to the world of
https://stackoverflow.com/questions/39823972/cassandra-node-cant-complete-jo
ining-operation
https://stackoverflow.com/questions/27251504/cassandra-2-1-2-node-stuck-on-j
oining-the-cluster
-Original Message-
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Monday
-node-stuck-on-j
oining-the-cluster
Kenneth Brotman
-Original Message-
From: Troels Arvin [mailto:tro...@arvin.dk]
Sent: Monday, February 18, 2019 2:54 AM
To: user@cassandra.apache.org
Subject: Bootstrap stuck in JOINING state?
Hello,
Nine days ago, I bootstrapped an Cassandra node, let&#
/cassandra_availability/whitepaper/cassandra-availability-virtual.pdf
Are the calculations consistent with your online calculator?
Thanks again,
Kenneth Brotman
From: James Briggs [mailto:james.bri...@yahoo.com.INVALID]
Sent: Friday, February 15, 2019 7:42 PM
To: user@cassandra.apache.org
Subject
Those aren’t the same error messages so I think progress has been made.
What version of C* are you running?
How did you clear out the space?
Kenneth Brotman
From: Léo FERLIN SUTTON [mailto:lfer...@mailjet.com.INVALID]
Sent: Thursday, February 14, 2019 7:54 AM
To: user
put it together for the community. Maybe we'll end up with a
download right on the Apache Cassandra web site or packaged with future
releases of Cassandra.
Kenneth Brotman
P.S. Terraform is next!
Can we the see “nodetool tablestats” for the biggest table as well.
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Sunday, February 10, 2019 7:21 AM
To: user@cassandra.apache.org
Subject: RE: Maximum memory usage
Okay, that’s at the moment it was calculated. Still need
our db
On Sun, Feb 10, 2019, 9:55 AM Kenneth Brotman
wrote:
Rahul,
Those partitions are tiny. Could you give us the table histograms for the
biggest tables.
Thanks,
Kenneth Brotman
From: Rahul Reddy [mailto:rahulreddy1...@gmail.com]
Sent: Sunday, February 10, 2019 6:43 AM
To
Rahul,
Those partitions are tiny. Could you give us the table histograms for the
biggest tables.
Thanks,
Kenneth Brotman
From: Rahul Reddy [mailto:rahulreddy1...@gmail.com]
Sent: Sunday, February 10, 2019 6:43 AM
To: user@cassandra.apache.org
Subject: Re: Maximum memory usage
This link
https://www.datastax.com/dev/blog/debugging-sstables-in-3-0-with-sstabledump
explains how to read an SSTable with sstabledump for 3x and sstable2json for 2.x
Kenneth Brotman
From: Ben Slater [mailto:ben.sla...@instaclustr.com]
Sent: Thursday, February 07, 2019 1:19 PM
To
failing
On Thu, Feb 7, 2019 at 10:11 PM Kenneth Brotman
wrote:
Lots of things come to mind. We need more information from you to help us
understand:
How long have you had your cluster running?
A bit more than a year old. But it has been constantly growing (3 nodes to 6
nodes to 12 nodes
This webpage has relevant information on procedures you need to use:
https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsAddDCToCluster.html
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Thursday, February 07, 2019 1:31 PM
To: user@cassandra.apache.org
prevent an incomplete repair from being performed.”
Give it a read.
Kenneth Brotman
From: CPC [mailto:acha...@gmail.com]
Sent: Wednesday, February 06, 2019 11:59 PM
To: user@cassandra.apache.org
Subject: range repairs multiple dc
Hi All,
I searched over documentation but could
When you say you’re trying to get all the partition of a particular SSTable,
I’m not sure what you mean. Do you want to make a copy of it? I don’t
understand.
Kenneth Brotman
From: Pranay akula [mailto:pranay.akula2...@gmail.com]
Sent: Wednesday, February 06, 2019 7:51 PM
To: user
Lots of things come to mind. We need more information from you to help us
understand:
How long have you had your cluster running?
Is it generally working ok?
Is it just one node that is misbehaving at a time?
How many nodes do you need to replace?
Are you doing rolling restarts instead of simu
before we decided to move to
Cassandra
On Thu, Feb 7, 2019, 8:21 AM Kenneth Brotman
wrote:
The problem is you’re not using a query first design. I would recommend first
reading chapter 5 of Cassandra: The Definitive Guide by Jeff Carpenter and Eben
Hewitt. It’s available free online at
=jeff+carpenter+chapter+5&source=bl&ots=58bUYyNM-J&sig=ACfU3U22U58-QPlz6kzo0zziNF-bP30l4Q&hl=en&sa=X&ved=2ahUKEwi0n-nWzajgAhXnHzQIHf6jBJIQ6AEwAXoECAgQAQ#v=onepage&q=jeff%20carpenter%20chapter%205&f=false>
.
Kenneth Brotman
From: Peter Heitman [mailto:pe...@he
Exactly. When you design your data model correctly you shouldn’t have to use
ALLOW FILTERING in the queries. That is not recommended.
Kenneth Brotman
From: Peter Heitman [mailto:pe...@heitman.us]
Sent: Wednesday, February 06, 2019 6:09 PM
To: user@cassandra.apache.org
Subject: Re: SASI
Not sure off hand why that is happening but could you try bootstrapping that
node from scratch again or try a different new node?
Kenneth Brotman
From: Léo FERLIN SUTTON [mailto:lfer...@mailjet.com.INVALID]
Sent: Wednesday, February 06, 2019 9:15 AM
To: user@cassandra.apache.org
Subject
Can you give us the “nodetool tablehistograms”
Kenneth Brotman
From: Rahul Reddy [mailto:rahulreddy1...@gmail.com]
Sent: Wednesday, February 06, 2019 6:19 AM
To: user@cassandra.apache.org
Subject: Maximum memory usage
Hello,
I see maximum memory usage alerts in my system.log
Hi Kunal,
The short answer is absolutely not; that’s not what Cassandra is for.
Cassandra is a distributed database for when you have to much data for one
machine.
Kenneth Brotman
From: Kunal [mailto:kunal.v...@gmail.com]
Sent: Wednesday, February 06, 2019 3:47 PM
To: user
Isn’t that a lot of SASI indexes for one table. Could you denormalize more to
reduce both columns per table and SASI indexes per table? Eight SASI indexes
on one table seems like a lot.
Kenneth Brotman
From: Peter Heitman [mailto:pe...@heitman.us]
Sent: Tuesday, February 05, 2019 6:59
monitoring and how did you find out it was happening?
Is this a DSE cluster or OSS Cassandra cluster?
Kenneth Brotman
From: Subroto Barua [mailto:sbarua...@yahoo.com.INVALID]
Sent: Friday, February 01, 2019 10:48 AM
To: user@cassandra.apache.org
Subject: Re: Help with sudden spike in read
Do you have that many queries? You could just review them and your data model
to see if there was an error of some kind. How long has it been happening?
What changed since it started happening?
Kenneth Brotman
From: Subroto Barua [mailto:sbarua...@yahoo.com.INVALID]
Sent: Friday
If you had a query that went across the partitions and especially if you had
vNodes set high, that would do it.
Kenneth Brotman
From: Subroto Barua [mailto:sbarua...@yahoo.com.INVALID]
Sent: Friday, February 01, 2019 8:45 AM
To: User cassandra.apache.org
Subject: Help with sudden spike
uez - @arodream - al...@thelastpickle.com
France / Spain
The Last Pickle - Apache Cassandra Consulting
http://www.thelastpickle.com <http://wwwthelastpickle.com>
2018-04-04 15:34 GMT+01:00 Kenneth Brotman :
There's also the old snapshots to remove that could be a
There's also the old snapshots to remove that could be a significant amount of
memory.
-Original Message-
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Wednesday, April 04, 2018 7:28 AM
To: user@cassandra.apache.org
Subject: RE: Urgent Problem - Disk full
Jeff,
Just wondering: why wouldn't the answer be to:
1. move anything you want to archive to colder storage off the cluster,
2. nodetool cleanup
3. snapshot
4. use delete command to remove archived data.
Kenneth Brotman
-Original Message-
From:
Assuming the data model is good and there haven’t been any sudden jumps in
memory use, it seems like the normal thing to do is archive some of the old
time series data that you don’t care about.
Kenneth Brotman
From: Rahul Singh [mailto:rahul.xavier.si...@gmail.com]
Sent: Wednesday
Someone with an Apache email address has insisted this topic be moved to the
dev list and not on a Jira so in an effort the help the group concentrate on
making progress, I’ll post this topic there.
Kenneth Brotman
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com]
Sent: Friday
r make any comments at all
about what others add.
No judgments at this point. This is a list of everyone's suggestions. Add
your suggestions for new major features you desire be added for version 4.0
only.
Trust me. This will get the ball rolling.
Kenneth Brotman
From:
Does anyone have a simple list of new major features desired for 4.0? It
should be a list of things desired regardless of judgements of any kind beyond
that. Just start with that if you want to get anywhere.
Kenneth Brotman
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID
Thanks Ben!
I’m reading a book on Cassandra right now that says “The 4.0 release series is
scheduled to begin in Fall 2016.” This is one of the group’s first big tests
since things changed.
Kenneth Brotman
From: Ben Bromhead [mailto:b...@instaclustr.com]
Sent: Friday, March 30
Properly Sizing Your Heap to Prevent OutOfMemoryErrors
https://support.datastax.com/hc/en-us/articles/204225929-Properly-Sizing-Your-Heap-to-Prevent-OutOfMemoryErrors
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Wednesday, March 28, 2018 5:35 AM
To: user
2516
发件人: Kenneth Brotman
发送时间: 2018年3月28日 20:16
收件人: user@cassandra.apache.org
主题: RE: 答复: 答复: A node down every day in a 6 nodes cluster
David,
Did you figure out what to do about the data model problem? It could be that
your data files finally grow to the point that the data
model.
Kenneth Brotman
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com]
Sent: Wednesday, March 28, 2018 4:46 AM
To: 'user@cassandra.apache.org'
Subject: RE: 答复: 答复: A node down every day in a 6 nodes cluster
Was any change to hardware done around the time the problem star
Was any change to hardware done around the time the problem started ?
Was any change to the client software done around the time the problem started?
Was any change to the database schema done around the time the problem started?
Kenneth Brotman
From: Xiangfei Ni [mailto:xiangfei...@cm
David,
How long has the cluster been operating?
How long has the problem been occurring?
Kenneth Brotman
From: Jeff Jirsa [mailto:jji...@gmail.com]
Sent: Tuesday, March 27, 2018 7:00 PM
To: Xiangfei Ni
Cc: user@cassandra.apache.org
Subject: Re: 答复: 答复: A node down every day in a 6
/operations/opsReplaceLiveNode.html
Kenneth Brotman
From: Xiangfei Ni [mailto:xiangfei...@cm-dt.com]
Sent: Tuesday, March 27, 2018 5:44 AM
To: user@cassandra.apache.org
Subject: Re:RE: 答复: A node down every day in a 6 nodes cluster
Thanks,Kenneth,this is production database,and it is
David,
Can you replace the misbehaving node to see if that resolves the problem?
Kenneth Brotman
From: Xiangfei Ni [mailto:xiangfei...@cm-dt.com]
Sent: Tuesday, March 27, 2018 3:27 AM
To: Jeff Jirsa
Cc: user@cassandra.apache.org
Subject: 答复: 答复: A node down every day in a 6 nodes
e be
willing to do it. He already has the awesome Cassandra list
https://github.com/anant/awesome-cassandra . He has put a lot of work into
learning how to do this type of thing. It would solve a lot of problems for
us.
Kenneth Brotman
the group
can manage this project when read things like that!
Kenneth Brotman
From: Durity, Sean R [mailto:sean_r_dur...@homedepot.com]
Sent: Wednesday, March 14, 2018 12:40 PM
To: user@cassandra.apache.org
Subject: RE: [EXTERNAL] RE: What versions should the documentation support now
nothing. Now its back
on you. Are you going to properly support the software you create or not!
Kenneth Brotman
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com.INVALID]
Sent: Tuesday, March 13, 2018 11:03 PM
To: user@cassandra.apache.org
Subject: RE: What versions should the documentation
er use of
your time.
Thanks,
Dinesh
On Tuesday, March 13, 2018, 11:03:04 PM PDT, Kenneth Brotman
wrote:
I made sub directories “2_x” and “3_x” under docs and put a copy of the doc in
each. No links were changed yet. We can work on the files first and discuss
how we want
I made sub directories “2_x” and “3_x” under docs and put a copy of the doc in
each. No links were changed yet. We can work on the files first and discuss
how we want to change the template and links. I did the pull request already.
Kenneth Brotman
From: Jonathan Haddad [mailto:j
previous replies if you’re doing that.
Let us know your results.
Kenneth Brotman
From: Kenneth Brotman [mailto:kenbrot...@yahoo.com]
Sent: Monday, March 12, 2018 7:14 PM
To: 'user@cassandra.apache.org'
Subject: RE: [EXTERNAL] RE: Adding new DC?
Kunal,
Sorry for asking
Kunal,
While we are looking into all this I feel compelled to ask you to check your
security configurations now that you are using public addresses to communicate
inter-node across data centers. Are you sure you are using best practices?
Kenneth Brotman
From: Kenneth Brotman
restarted
each one (in a rolling manner)?
Did you restart each node in each datacenter starting with the seed nodes since
you last updated a yaml file?
Could the client in your application be causing the problem?
Kenneth Brotman
From: Kunal Gangakhedkar [mailto:kgangakhed
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