Thanks a Lot Deno. A bit surprised that the an equivalent command should be
there with nodetool. Not sure if it is in the latest release.
BTW this makes a prerequisite that all the Data files of Cassandra be it index
or filters etc will have unique names across cluster. Is this a reasoanble
as
On 4/25/2012 11:34 PM, Shubham Srivastava wrote:
Whats the best way(or the only way) to take a cluster wide backup of
Cassandra. Cant find much of the documentation on the same.
I am using a MultiDC setup with cassandra 0.8.6.
Regards,
Shubham
here's how i'm doing in AWS land using the DataS
If your shared disk is super fast enough to handle IO requests from
multiple cassandra node, you can do it in theory. And the disk will be
the single point of failure in your system.
For optimal performance, each node should have at least 2 hdd, one for
commitlog and one for data.
maki
2012/4/26
Each node need its own HDD for multiple copies. cant share it with others
node.
On Thu, Apr 26, 2012 at 8:52 AM, Benny Rönnhager <
benny.ronnha...@thrutherockies.com> wrote:
> Hi!
>
> I am building a database with several hundred thousands of images.
> have just learned that HaProxy is a very goo
Questions like this should be directed to the user mailing list
(user@cassandra.apache.org); This mailing list is for discussion of
development *of* Cassandra.
On Wed, Apr 25, 2012 at 3:25 PM, Benny Rönnhager
wrote:
> I am building a database with several hundred thousands of images. I have
> ju
0 is a perfectly valid id.node - 1 is modulo the maximum token value. that
token range is 0 - 2**127so node - 1 in this case is 2**127 - Original
Message -From: "Deno Vichas" >;d...@syncopated.net
has anybody written up anything related to recovery for fails in EC2?
this morning i woke up to find 1 (of 4) nodes marked as unreachable. i
used the datastax (1.0.7) ami to set up my cluster and the node that
fail had the token id of 0 (this is the seed node - right?). the docs
says to repl
Good idea. Done here:
https://github.com/pycassa/pycassa/commit/2390363066c7efd79bdd2f27cd2d4496f692abf4
On Wed, Apr 25, 2012 at 7:11 AM, Carlo Pires wrote:
> Tyler,
>
> A think you could add this values as python constants to pycassa. This
> would be very useful for many people.
>
>
> 2012/4/2
How much data do you have and how long is "a while"? In my experience repairs
can take a very long time. Check to see if validation compactions are running
(nodetool compactionstats) or if files are streaming (nodetool netstats). If
either of those are in progress then your repair should be r
De : mdione@orange.com [mailto:mdione@orange.com]
> Should I understand that when the indexes are finished being built a)
> the «Built indexes» list should be empty and b) there should be no pending
> compactions? Because that's exactly what I have now but I still can't
> use the column H
1.0.8
在 2012年4月25日 下午10:38，Philip Shon 写道：
> what version of cassandra are you using. I found a big performance hit
> when querying on the secondary index.
>
> I came across this bug in versions prior to 1.1
>
> https://issues.apache.org/jira/browse/CASSANDRA-3545
>
> Hope that helps.
>
> 2012/4
what version of cassandra are you using. I found a big performance hit
when querying on the secondary index.
I came across this bug in versions prior to 1.1
https://issues.apache.org/jira/browse/CASSANDRA-3545
Hope that helps.
2012/4/25 Jason Tang
> And I found, if I only have the search con
And I found, if I only have the search condition "status", it only scan 200
records.
But if I combine another condition "partition" then it scan all records
because "partition" condition match all records.
But combine with other condition such as "userName", even all "userName" is
same in the 1,0
Hi
We have the such CF, and use secondary index to search for simple data
"status", and among 1,000,000 row records, we have 200 records with status
we want.
But when we start to search, the performance is very poor, and check with
the command "./bin/nodetool -h localhost -p 8199 cfstats" ,
I'll also try LongType index. I'll let you know how that works.
Regards,
P.
Hi,
I see strange behaviour using CF with two secondary indexes, one
IntegerType one UTF8Type.
Using Cassanra 1.0.9 and CF:
create column family IndexTest
with column_type=Standard
and comparator=UTF8Type
and default_validation_class=UTF8Type
and key_validation_class=UTF8Type
Tyler,
A think you could add this values as python constants to pycassa. This
would be very useful for many people.
2012/4/24 Drew Kutcharian
> Nice, that's exactly what I was looking for.
>
>
> On Apr 24, 2012, at 11:21 AM, Tyler Hobbs wrote:
>
> Oh, I just realized that you're asking about th
In CQL, both UPDATE AND INSERT have the same semantic and are both "upsert".
I.e, INSERT does not fail if the record was already existing and
UPDATE does not fail if the record wasn't existing.
--
Sylvain
On Wed, Apr 25, 2012 at 1:18 PM, Maciej Miklas
wrote:
> CQL will have UPDATE future, I am t
CQL will have UPDATE future, I am trying to understand how this could work.
Every write is an append to SSTable, UPDATE would need to change data, but
only if it exists, and this is problematic, since we have distributed
system.
Is UPDATE special kind of insert, which changes given data only if i
De : aaron morton [mailto:aa...@thelastpickle.com]
> The secondary index will be build using the compaction features,
> you can check the progress with nodetool compactionstats
>
> When they are build the output from describe. will list the build indexes.
>
> Built indexes: []
Should I unders
Dne 18.4.2012 16:22, Jonathan Ellis napsal(a):
It's not that simple, unless you have an append-only workload.
I have append only workload and probably most ppl using TTL too.
> On Apr 25, 2012 9:36 AM, "Maciej Miklas" wrote:
>>
>> Hi,
>>
>> I've seen this blog entry:
>> http://www.datastax.com/dev/blog/schema-in-cassandra-1-1 and I am trying to
>> understand, how could Cassandra support PRIMARY KEY.
>>
>> Cassandra has silent conflict resolution, where each insert over
Yes, AFAIK it's still like this (and I don't think that this behavior will
change, you can rely on it).
Paolo
On Apr 25, 2012 9:36 AM, "Maciej Miklas" wrote:
> Hi,
>
> I've seen this blog entry:
> http://www.datastax.com/dev/blog/schema-in-cassandra-1-1 and I am trying
> to understand, how could
Hi,
With Cassandra 1.1, I have the following crash on a fresh new single node
cluster running on Windows 7.
On client side:
create keyspace toto;
create column family titi;
truncate titi;
The crash server side (the server is dead then) :
D:\Cassandra\apache-cassandra-1.1.0\bin>ca
Hi,
I've seen this blog entry:
http://www.datastax.com/dev/blog/schema-in-cassandra-1-1 and I am trying to
understand, how could Cassandra support PRIMARY KEY.
Cassandra has silent conflict resolution, where each insert overwrites next
one, and there are only inserts and deletes - no updates. The
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