Thanks David, for the clarification.
I feel it would be better if nodetool ring reports per-dc token space
ownerships to correctly reflect what cassandra is internally doing, instead
of global token space ownership.
- Ravi
On Fri, Feb 10, 2012 at 12:42 PM, David Schairer wrote:
> nodetool ring
Yup, that's exactly it. You can get rid of those either by restarting the node
or upgrading to 1.0.7.
/Janne
On Feb 10, 2012, at 02:49 , Roshan wrote:
> I have deployed 2 node Cassandra 1.0.6 cluster in production and it running
> almost t weeks without any issue. But I can see lots of (more t
nodetool ring is, IMHO, quite confusing in the case of multiple datacenters.
Might be easier to think of it as two rings:
in your DC1 ring you have two nodes, and since the tokens are balanced,
assuming your rows are randomly distributed you'll have half the data on each,
since your replicatio
Hi,
I was trying to setup a backup DC from existing DC.
State of existing DC with SimpleStrategy & rep_factor=1.
./nodetool -h localhost ring
Address DC RackStatus State LoadOwns
Token
85070591730234615865843651857942052864
XXX.YYYDC1
I have deployed 2 node Cassandra 1.0.6 cluster in production and it running
almost t weeks without any issue. But I can see lots of (more than 90) 0
bytes tmp data and index files in the data directory.
So far this is not a issue for me, but want to know why is that. Seems like
this data/index tm
That sounds like writing a DB... indexing the index row :)
By making the keys uniform Do you mean like keep the initial X
characters the same or the last Y the same... Could you elaborate, please?
Also, if there's hot spot is there any way out of it, other than restarting
from scratch...
No, not an issue. The nodes in DC2 know that they aren't supposed to
have data, so they go ask the nodes in DC1 for the data to return to you.
-Jeremiah
On 02/09/2012 05:28 AM, Roshan Pradeep wrote:
Thanks Peter for the replies.
Previously it was a typing mistake and it should be "getting".
Hi,
1 - I would like to generate some statistics and store some raw events from
log files tailed with flume. I saw some plugins giving Cassandra sinks but
I would like to store data in a custom way, storing raw data but also
incrementing counters to get near real-time statistcis. How to do it ? Do
Thanks Peter for the replies.
Previously it was a typing mistake and it should be "getting". I checked
the DC2 (with having replica 0) and noticed that there is no SSTables
created.
I use java hector sample program to insert data to the keyspace. After I
insert a data item, I
1) Login to one of n
> I have 3 Cassandra nodes in one data center all on the same local network,
> which needs to replicate from an off site data center. Only 1 of the 3
> nodes, called dw01, is externally accessible.
If you want to run a multi data centre cluster, all the nodes in both data
centers need to be ab
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