Hello,
In the data directory of my 3.0.9 installation, I have directories with both
suffixes and without:
periodicReading
periodicReadingTemp-76eb7510096811e68a7421c8b9466352
The directories with and without suffixes are being updated and for those with
a suffix, the suffix matches the output of
these unused directories?
Thanks,
Jason Kania
From: Vladimir Yudovin <vla...@winguzone.com>
To: user@cassandra.apache.org; Jason Kania <jason.ka...@ymail.com>
Sent: Saturday, October 8, 2016 2:05 PM
Subject: Re: Understanding cassandra data directory contents
Each table h
Hello,
I am using Cassandra 3.0.9 and I have encountered an issue where the nodes in
my 3 node cluster have vastly different amounts of data even though they should
be roughly the same. When I looked through the data directory for my database
on two of the nodes, I see a number of directories
com>
To: user@cassandra.apache.org; Jason Kania <jason.ka...@ymail.com>
Sent: Wednesday, June 8, 2016 12:55 PM
Subject: Re: Nodetool repair inconsistencies
Hi Jason -
Did you run a major compaction after the repair completed? Do you have other
reasons besides the number/size
compact error.
Thanks,
Jason
From: Romain Hardouin <romainh...@yahoo.fr>
To: "user@cassandra.apache.org" <user@cassandra.apache.org>; Jason Kania
<jason.ka...@ymail.com>
Sent: Wednesday, June 8, 2016 8:30 AM
Subject: Re: Nodetool repair inconsistencies
I am running a 3 node cluster of 3.0.6 instances and encountered an error when
running nodetool compact. I then ran nodetool repair. No errors were returned.
I then attempted to run nodetool compact again, but received the same error so
the repair made no correction and reported no errors.
After
rsion of Cassandra are you running?
On Wed, Mar 30, 2016 at 9:59 AM, Kai Wang <dep...@gmail.com> wrote:
Do you have NTP setup on all nodes?
On Tue, Mar 29, 2016 at 11:48 PM, Jason Kania <jason.ka...@ymail.com> wrote:
We have encountered a query inconsistency problem wherein the foll
Thanks for the response.
All nodes are using NTP.
Thanks,
Jason
From: Kai Wang <dep...@gmail.com>
To: user@cassandra.apache.org; Jason Kania <jason.ka...@ymail.com>
Sent: Wednesday, March 30, 2016 10:59 AM
Subject: Re: Inconsistent query results and node state
Do you ha
We have encountered a query inconsistency problem wherein the following query
returns different results sporadically with invalid values for a timestamp
field looking like the field is uninitialized (a zero timestamp) in the query
results.
Attempts to repair and compact have not changed the
e more over the weekend.
Also, these queries focus on raw, bulk retrieval of sensor data readings, but
do you have reading-based queries, such as range of an actual sensor reading?
-- Jack Krupansky
On Fri, Mar 11, 2016 at 7:08 PM, Jason Kania <jason.ka...@ymail.com> wrote:
The 5000 readin
jump to solutions until we
have a firmer handle on the query side of the fence.
-- Jack Krupansky
On Fri, Mar 11, 2016 at 5:37 PM, Jason Kania <jason.ka...@ymail.com> wrote:
Jack,
Thanks for the response.
We are targeting our database design to 1 sensor units and each sensor unit
has
he probability of a timeout directly linked to a longer seek
time in reading through a partition's contents? If that is the case, splitting
the partition keys into a separate table would be straightforward.
Regards,
Jason
From: Jack Krupansky <jack.krupan...@gmail.com>
To: user@cassand
there really is a method to
understanding all of this other stuff upfront.
-- Jack Krupansky
On Thu, Mar 10, 2016 at 12:39 PM, Jason Kania <jason.ka...@ymail.com> wrote:
Jack,
Thanks for the response. I don't think I provided enough information and used
the wrong terminology as you
: user@cassandra.apache.org; Jason Kania <jason.ka...@ymail.com>
Sent: Thursday, March 10, 2016 10:42 AM
Subject: Re: Strategy for dividing wide rows beyond just adding to the
partition key
There is an effort underway to support wider
rows:https://issues.apache.org/jira/browse/CASSANDRA-9754
This wo
be appreciated.
Thanks,
Jason
From: Jonathan Haddad <j...@jonhaddad.com>
To: user@cassandra.apache.org; Jason Kania <jason.ka...@ymail.com>
Sent: Thursday, March 10, 2016 11:21 AM
Subject: Re: Strategy for dividing wide rows beyond just adding to the
partition key
Have you consi
Hi,
We have sensor input that creates very wide rows and operations on these rows
have started to timeout regulary. We have been trying to find a solution to
dividing wide rows but keep hitting limitations that move the problem around
instead of solving it.
We have a partition key consisting of
I raised
https://issues.apache.org/jira/browse/CASSANDRA-11273 with these details and
the workaround that I found.
From: Paulo Motta <pauloricard...@gmail.com>
To: "user@cassandra.apache.org" <user@cassandra.apache.org>; Jason Kania
<jason.ka...@ymail.com>
Sen
-89f591237aca]
Received null
From: Sebastian Estevez <sebastian.este...@datastax.com>
To: user@cassandra.apache.org; Jason Kania <jason.ka...@ymail.com>
Sent: Saturday, February 27, 2016 8:24 PM
Subject: Re: How to complete bootstrap with exception due to stream failure?
progres
Hello,
I am trying to get a node bootstrapped in 3.0.3, but just at the point where
the bootstrap process is to complete, a broken pipe exception occurs so the
bootstrap process hangs. Once I kill the bootstrap process, I can execute
"nodetool bootstrap resume" again and the same problem will
Hi,
I am wondering if there is any documentation on migrating from a single node
cassandra instance to a multinode cluster? My searches have been unsuccessful
so far and I have had no luck playing with tools due to terse output from the
tools.
I currently use a single node having data that
Thanks for the tool reference. That will help. The second part of my question
was whether there is a way to actually perform data repair aside from copying
data from a replica.
Thanks,
Jason
From: Carlos Alonso <i...@mrcalonso.com>
To: user@cassandra.apache.org; Jason Kania <
Hi,
I encountered an error in Cassandra or the latest Oracle JVM that causes the
JVM to terminate during compaction in my situation (CASSANDRA 11200). In trying
work around the problem and access the data , I moved the data eg
ma-NNN-big-Filter.db, ma-367-big-Data.db etc. out of the data
Hi,
I have been having a few exchanges with contributors to the project around what
is possible with Cassandra and a common response that comes up when I describe
functionality as broken or missing is that I am not modelling my data
correctly. Unfortunately, I cannot seem to find comprehensive
application
requires a fundamental rethink of all the assumptions we've been taught for
master/slave style databases.
On Tue, Dec 16, 2014 at 10:46 AM, Jason Kania jason.ka...@ymail.com wrote:
Hi,
I have been having a few exchanges with contributors to the project around what
is possible
Hello,
I am wondering if there is a way to obtain results from a table where only the
results from the local partition are returned in the query?
To give some background, my application requires millions of timers and since
queue-like implementations are a bad fit/anti-pattern for Cassandra, I
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