Background info:
6 node cluster.
24 gigs of ram per machine
8 gigs of ram dedicated to c*
4 4 core cpu's
2 250 gig SSD's raid 0
Running c* 1.2.6
The CF is configured as followed
CREATE TABLE behaviors (
uid text,
buid int,
name text,
expires text,
value text,
PRIMARY KEY (uid, buid,
Using Cassandra 2.0.x
If I have a 3 node cluster and 2 of the nodes use spinning drives and 1 of
them uses SSD, will the majority of the reads be routed to the SSD node
automatically because it has faster responses?
TIA,
Elliot
On Tue, Mar 4, 2014 at 12:34 PM, Charlie Mason wrote:
> I have single node cluster I use for development on my local machine.
> After apt package upgrades and hard reboots the node takes a very long time
> to restart.
>
Regarding "after apt package upgrades", this is yet another case for :
https
On Tue, Mar 4, 2014 at 2:28 PM, Nate McCall wrote:
> The commit log replay is single threaded, so if you have a ton of
> overwrites in a whole lot of commit log (like you would with a queue
> pattern) it might be backing up.
>
> The only real work around to this right now would be to turn off dur
I am getting errors running the cmake file in a *very* recent download
of the C++ driver's source tree. It seems to be failing to find
either boost::asio or openssl libraries. I defineately have these
both installed having developed against them recently (and rechecked
with dpkg today).
While I
Hi Guys,
I have couple of question on Datastax C++ driver.. Not related to this
particular post as nobody is replying to my original email thread.. And in
this email thread I saw people talking about Datastax C++ driver.
Not sure whether you might be able to help me or not but trying my luck -
W
I have started a php library that uses the cql binary protocol.
check out:
https://github.com/rmcfrazier/phpbinarycql
thanks,
Robert
On Mar 4, 2014 3:06 PM, "Bryan Talbot" wrote:
> I think the options for using CQL from PHP pretty much don't exist. Those
> that do are very old, haven't been upd
I think the options for using CQL from PHP pretty much don't exist. Those
that do are very old, haven't been updated in months, and don't support
newer CQL features. Also I don't think any of them use the binary protocol
but use thrift instead.
>From what I can tell, you'll be stuck using old CQL
Thanks Michael.This is the "ray of hope" I desperately needed. I'll let
you know how it goes.
-Original Message-
From: Michael Shuler [mailto:mshu...@pbandjelly.org] On Behalf Of Michael Shuler
Sent: Tuesday, March 04, 2014 2:58 PM
To: user@cassandra.apache.org
Subject: Re: Datastax
On 03/04/2014 04:30 PM, Michael Shuler wrote:
On 03/04/2014 04:22 PM, Michael Shuler wrote:
On 03/04/2014 04:12 PM, Dwight Smith wrote:
Second that question
*From:*Green, John M (HP Education) [mailto:john.gr...@hp.com]
*Sent:* Tuesday, March 04, 2014 2:03 PM
*To:* user@cassandra.apache.org
*S
On 03/04/2014 04:12 PM, Dwight Smith wrote:
Second that question
*From:*Green, John M (HP Education) [mailto:john.gr...@hp.com]
*Sent:* Tuesday, March 04, 2014 2:03 PM
*To:* user@cassandra.apache.org
*Subject:* Datastax C++ driver on Windows x64
Has anyone successfully built the Datastax C++ dr
On 03/04/2014 04:22 PM, Michael Shuler wrote:
On 03/04/2014 04:12 PM, Dwight Smith wrote:
Second that question
*From:*Green, John M (HP Education) [mailto:john.gr...@hp.com]
*Sent:* Tuesday, March 04, 2014 2:03 PM
*To:* user@cassandra.apache.org
*Subject:* Datastax C++ driver on Windows x64
Ha
The commit log replay is single threaded, so if you have a ton of
overwrites in a whole lot of commit log (like you would with a queue
pattern) it might be backing up.
The only real work around to this right now would be to turn off durable
writes to the queue schema.
The following has some detai
Second that question
From: Green, John M (HP Education) [mailto:john.gr...@hp.com]
Sent: Tuesday, March 04, 2014 2:03 PM
To: user@cassandra.apache.org
Subject: Datastax C++ driver on Windows x64
Has anyone successfully built the Datastax C++ driver for a Windows 64-bit
platform?
While I've made
Has anyone successfully built the Datastax C++ driver for a Windows 64-bit
platform?
While I've made some progress I'm still not there and wondering if I should
give-up and use a local socket to another process (e.g., JVM or .NET runtime)
instead.I'd prefer to use C++ because that's what th
Hi All,
I have single node cluster I use for development on my local machine. After
apt package upgrades and hard reboots the node takes a very long time to
restart.
The node will always eventually come back up however it takes ages
sometimes. It seems to be CPU bound as all 4 cores are maxed out
On 03/04/2014 03:56 AM, DuyHai Doan wrote:
Hello Andy
1. "Is there a list somewhere of reserved keywords that I can access so
that I
prohibit a user entering such a column name?" ->
http://www.datastax.com/documentation/cql/3.0/cql/cql_reference/keywords_r.html
2. you may propose a pull request
I guess you are not right.. Cluster.builder.addContactPoint(...) will add
nodes in the connection pool.. And it will discover all the other nodes in
the connection pool automatically.. To filter out nodes only for local colo
we need to use to different settings in Java driver..
There should be sim
Hi All,
I might be missing something and I would like some clarification on this. We
are using the java driver with the Downgrading Retry policy, we see in our logs
that are only the reads are retried.
In the code and the docs, it says that the write method will retry a maximum of
one retry, w
Hi ,
Your client/application will connect to one of the nodes from the nodes you
tell it to connect. In the java driver this is done by calling
Cluster.builder.addContactPoint(...). I suppose the C++ driver will have
similar class method. For the app in DC1 provide only nodes in DC1 as
contact poi
That looks healthy - nothing blocked or dropped.
On 4 Mar 2014, at 16:12, Phil Luckhurst wrote:
> Here's the tpstats output from both nodes.
>
>
>
>
>
>
> Johnny Miller wrote
>> What is nodetool tpstats telling you?
>
>
>
>
>
> --
> View this message in context:
> http://cassandra-
Here's the tpstats output from both nodes.
Johnny Miller wrote
> What is nodetool tpstats telling you?
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Gossip-intermittently-marks-node-as-DOWN-tp7593189p7593206.html
Sent from the cassandr
What is nodetool tpstats telling you?
On 4 Mar 2014, at 15:10, Phil Luckhurst wrote:
> It was created with the default settings so we have 256 per node.
>
>
> Fabrice Facorat wrote
>> From what I understand, this can happen when having many nodes and
>> vnodes by node. How many vnodes did you
It was created with the default settings so we have 256 per node.
Fabrice Facorat wrote
> From what I understand, this can happen when having many nodes and
> vnodes by node. How many vnodes did you configure on your nodes ?
>
> 2014-03-04 11:37 GMT+01:00 Phil Luckhurst <
> phil.luckhurst@
> >
I have couple of question on Datastax C++ driver.
We have 36 nodes Cassandra cluster. 12 nodes in DC1, 12 nodes in DC2, 12
nodes in DC3 datacenters.
And our application code is also in three datacenters- 11 node in DC1, 11
node in DC2, 11 node in DC3 datacenter.
So my question is if the applicat
>From what I understand, this can happen when having many nodes and
vnodes by node. How many vnodes did you configure on your nodes ?
2014-03-04 11:37 GMT+01:00 Phil Luckhurst :
> The VMs are hosted on the same ESXi server and they are just running
> Cassandra. We seem to get this happen even if t
hi all,
After trying some things like:
- tunning hadoop,
- test with Cassandra 2.0.5
- test with cassandra 2.1 beta
- increase memory in cassandra and hadoop,
- upgrade and change instances in EC2
- increase number of threads
- change type rpc server in Cassandra
Hi, All,
I need to paginate all columns in a row. but can not to use
RowQuery.autoPaginate() method to do this
due to some requirements.
All columns are composite column and I need to get next 'page' by a separated
query.
Here is my pseudo codes (page size =3):
ColumList result = query.execu
The VMs are hosted on the same ESXi server and they are just running
Cassandra. We seem to get this happen even if the nodes appear to be idle;
about 2 to 4 times per hour.
Phil
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Gossip-interm
Hello Andy
1. "Is there a list somewhere of reserved keywords that I can access so
that I
prohibit a user entering such a column name?" ->
http://www.datastax.com/documentation/cql/3.0/cql/cql_reference/keywords_r.html
2. you may propose a pull request ?
On Tue, Mar 4, 2014 at 10:52 AM, Andy
Set phi_convict_threshold to 12 is a good idea if your network is busy.
Are your VMs located in different datacenters?
Did you check if the nodes are not overloaded? An unresponsive node can be
seen as down even if it's temporary.
Romain
Phil Luckhurst a écrit sur 03/03/2014
15:16:25 :
> De
Hi,
while adding support for Cassandra into DataNucleus I came across the
following
CREATE TABLE schema1.mapfkvalueitem (desc varchar,key varchar,name
varchar,mapfkvalueitem_id bigint, PRIMARY KEY (mapfkvalueitem_id));
which fails with the delightfully informative message
Bad Request: line 1:37
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