problem-1:
-
when I edit any “schema-> kespacke-> cf”,then report “Error saving column
family: required argument is not a float”
problem-2:
-
from OpsCenter 3.2 release
note(http://www.datastax.com/docs/opscenter/release_notes#opscenter-3-2), it
tell me “Added support fo
I also have the following message in the dashboard :
Error loading events: Cannot call method 'slice' of null
With events and alerts not showing up. No error in the logs (opscenterd and
agents)
2013/7/30 yue.zhang
> problem-1:
>
> -
>
> when I edit any “schema-> kespacke->
I also see "Waiting for agent information..." In the top of the dashboard
page, but again nothing on the logs.
2013/7/30 Alain RODRIGUEZ
> I also have the following message in the dashboard :
>
> Error loading events: Cannot call method 'slice' of null
>
> With events and alerts not showing up.
Cassandra 1.2.8 still have this issue.
Possible recipe to reproduce: create the table as described in the first
message of this thread; write 3000 rows of 10MB each at the rate about
0.1..1 request per second.
Maybe this behavior is caused by incremental compaction of large rows...
On Mon, Jul 2
Also it is probably worth to mention:
1. I see no other errors in logs except that one;
2. Sometimes connected clients receive "Request did not complete within
rpc_timeout.", even if they are accessing other tables.
3. Sometimes, some cells from another tables may read as NULL when they are
in fact
Hi
I am sorry to open one more thread about this topic, but I though I
understood roughly how distributed deletes work and while testing it, it
appeared that I don't.
I have deleted a lot of counter columns and "normal" rows and columns.
On Opscenter, I was still able to see the row keys, with a
Hi Everyone,
Sorry if the answer to this question is out there, I can't seem to find it by
searching.
Is there a way to read the endpoint_snitch at runtime, preferably from a CQL
query, but fine if it's available through an older API? (Or JMX?)
We're automating creating clusters & provisioni
It looks like I can infer this from the local table in the system schema by
looking at the datacenter value.
Would this be a bad bad thing to do?
Thanks,
Ben
From: Ben Boule [ben_bo...@rapid7.com]
Sent: Tuesday, July 30, 2013 11:41 AM
To: user@cassandra.apache.or
Hi,
I have a data modelling question. I'm modelling for an use case where, an
object can have multiple facets and each facet can have multiple revisions and
the query pattern looks like "get latest 'n' revisions for all facets for an
object (n=1,2,3)". With a table like below:
create tabl
SlicePredicate only support “N” columns. So, you need to query one facet at a
time OR you can query m columns such that it returns n revisions. You may need
intelligence to increase or decrease m columns heuristically.
From: ravi prasad
Sent: Tuesday, July 30, 2013 8:11 PM
To: cas
Hello,
Both Cassandra CLI and CQLSH have option to specify an custom index. Can you
point to an example custom index implementation, if there is one?
Thanks
Baskar
Hi All,
I am trying to have a table that I can have a key for one CQL to get a row
based on a key and another CQL to where I have a list of keys using the "IN"
keyword and have an ORDER BY clause. The data I am getting is from the Column
value not the Column Name. The issue I am having is tryin
Hi,
thanks for the helpful replies last week.
It looks as if I will deploy Cassandra on a bunch of VMs and I am now in the
process of understanding what the dimensions of the VMS should be.
So far, I understand the following:
- I need at least 3 VMs for a minimal Cassandra setup
- I should get
Having just enough RAM to hold the JVM's heap generally isn't a good idea
unless you're not planning on doing much with the machine.
Any memory not allocated to a process will generally be put to good use
serving as page cache. See here: http://en.wikipedia.org/wiki/Page_cache
Jon
On Tue, Jul 3
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