On 6/22/2011 11:43 PM, Sasha Dolgy wrote:
maybe you want to spend a few minutes reading about Haystack over at
facebook to give you some ideas...
https://www.facebook.com/note.php?note_id=76191543919
Not saying what they've done is the right way... just sayin'
Thanks for the tip Sasha; will d
Exactly right - I wrote BlobInputStream and BlobOutputStream classes to
go with a Blob class.
I use 1MB for the block size, but I haven't done any performance
testing. I went small to favor low memory and bandwidth foot prints.
I'd, of course, be very interested in any performance tests.
On
>I have a simple blob class over the top of this which handles input and
output streaming so reads/writes are only one column at a >time
Thank you for the tips. I think I will do the same ; for this time, I've
developped a simple version which store the entire file in one column, but
I've already
maybe you want to spend a few minutes reading about Haystack over at
facebook to give you some ideas...
https://www.facebook.com/note.php?note_id=76191543919
Not saying what they've done is the right way... just sayin'
On Thu, Jun 23, 2011 at 6:29 AM, AJ wrote:
>
> I was thinking of doing the s
On 6/22/2011 1:07 AM, Damien Picard wrote:
Hi,
I have to store some files (Images, documents, etc.) for my users in a
webapp. I use Cassandra for all of my data and I would like to know if
this is a good idea to store these files into blob on a Cassandra CF ?
Is there some contraindications, o
On 06/22/2011 01:23 AM, Damien Picard wrote:
>store your images / documents / etc. somewhere and reference them
>in Cassandra. That's the consensus that's been bandied about on this
>list quite frequently
I store large files in Cassandra using columns for file blocks. I have
a simple blo
Speaking purely from my personal experience, I haven't found cassandra
optimal for storing big fat rows. Even if it is only 100s of KB I didn't
find cassandra suitable for it. In my case I am looking at 400 writes + 400
reads per sec and grow 20%-30% every ear with file sizes from 70k-300k. What
I
In this case, the load balancer has to detect (or is configured) that the
server is down and does not route request to this one anymore.
2011/6/22 aaron morton
> If the Cassandra JVM is down, Tomcat and Httpd will continue to handle
> requests. And Pelops will redirect these requests to another
> If the Cassandra JVM is down, Tomcat and Httpd will continue to handle
> requests. And Pelops will redirect these requests to another Cassandra node
> on another server (maybe am I wrong with this assertion).
I was thinking of the server been turned off / broken / rebooting /
disconnected fro
2011/6/22 aaron morton
> I think I have to detail my configuration. On every server of my cluster, I
> deploy :
> - a Cassandra node
> - a Tomcat instance
> - the webapp, deployed on Tomcat
> - Apache httpd, in front of Tomcat with mod_jakarta
>
>
> You will have a bunch of services on the ma
> I think I have to detail my configuration. On every server of my cluster, I
> deploy :
> - a Cassandra node
> - a Tomcat instance
> - the webapp, deployed on Tomcat
> - Apache httpd, in front of Tomcat with mod_jakarta
You will have a bunch of services on the machine competing with each oth
>store your images / documents / etc. somewhere and reference them
>in Cassandra. That's the consensus that's been bandied about on this
>list quite frequently
Thank you for your answers.
I think I have to detail my configuration. On every server of my cluster, I
deploy :
- a Cassandra node
-
Let's be more precise in saying that this all depends on the
expected size of the documents. If you know that the documents
will be on the few hundreds kilobytes mark on average and
no more than a few megabytes (say < 5MB, even though there is
no magic number), then storing them as blob will work p
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/Storing-photos-images-docs-etc-td6078278.html
Of significance from that link (which was great until feeling lucky
was removed...):
Google of terms cassandra large files + feeling lucky
http://www.google.com/search?q=cassandra+large+
14 matches
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