>From C* 2.2.x
> nodetool help toppartitions
NAME
nodetool toppartitions - Sample and print the most active
partitions for
a given column family
On Mon, Oct 26, 2015 at 7:54 AM, qihuang.zheng wrote:
> I use nodetool cfstats to see table’s status, and find *Compacted
> partiti
You are correct. That is the intent of the MaxTenuringThreshold parameter.
Setting the value > 1 keeps objects in survivor space longer, if there is
space to keep them. The intent of keeping objects in survivor space for
longer than one ParNew cycle is to prevent relatively short lived objects
from
--
http://about.me/BrianTarbox
hi;
we are working on a data backup and restore procedure to a new cluster.
We are following the datastax documentation. It mentions a step
"Restore the SSTable files snapshotted from the old cluster onto the new
cluster using the same directories"
http://docs.datastax.com/en/cassandra/2.0/cas
Toppartions provide the most active partitions.
I am trying to do same thing. I was able to narrow down the largest partition
by looking at warning in system.log.
Given that I have the key, how to see the entire data for that key?
Thanks,
Tushar
> On Oct 26, 2015, at 4:21 AM, DuyHai Doan w
Right now, I have setup "LOCAL QUORUM" as the consistency level in the
driver, but it seems that "SERIAL" is being used during writes, and I
consistently get this error of type ::
*Cassandra timeout during write query at consistency SERIAL (3 replica were
required but only 0 acknowledged the write
What's your query? Do you have IF NOT EXISTS in there?
On Mon, Oct 26, 2015 at 11:17 AM Ajay Garg wrote:
> Right now, I have setup "LOCAL QUORUM" as the consistency level in the
> driver, but it seems that "SERIAL" is being used during writes, and I
> consistently get this error of type ::
>
>
If one rethinks "consistency" to mean "copies returned" and "copies
written" then one can have different values for the former (datastax) and
the latter (within Cassandra). The latter changes eventual consistency
(e.g. two copies must be written), the former can speed up a result at the
(slight) ri
Hi,
My understanding is that if I want to enable internal authentication and
authorization on C* while still keeping OpsCenter working, I should grant
all to OpsCenter space and describe/select on everything else. But when I
try to grant permissions to or even switch into OpsCenter, cqlsh reports
You need to quote the "OpsCenter" identifier to distinguish capital letters:
https://cassandra.apache.org/doc/cql3/CQL.html#identifiers
Adam
On Mon, Oct 26, 2015 at 4:25 PM, Kai Wang wrote:
> Hi,
>
> My understanding is that if I want to enable internal authentication and
> authorization on C*
Thanks Adam.
On Mon, Oct 26, 2015 at 5:30 PM, Adam Holmberg
wrote:
> You need to quote the "OpsCenter" identifier to distinguish capital
> letters:
> https://cassandra.apache.org/doc/cql3/CQL.html#identifiers
>
> Adam
>
> On Mon, Oct 26, 2015 at 4:25 PM, Kai Wang wrote:
>
>> Hi,
>>
>> My unders
Tks Doan! we would try spark. as our online already has spark1.4.1. but our C*
version is 2.0.15, As spark1.4 need 2.1.5, when I query size get error “Failed
to fetch size estimates for system.size_estimates”. but that’s not a serious
problem.
I tried use spark1.4.1 and cass2.01.5 on test env, I
Recently we want to delete some c* nodes for data migration. C* verision:2.0.15
we use nodetooldecommission with nohup: nohup nodetool decommission -h xxx
After execute 3 days already, seems this process did’t finished yet!
This decommissioning Node data isnearly 400G.
1. I check jps -lm, and Nod
Using java driver, both read and write will transfer to Statement. We use
PrepareStatement like this:
public PreparedStatement getPrepareSTMT(String cql){
PreparedStatement statement = session.prepare(cql);
statement.setConsistencyLevel(ConsistencyLevel.ONE).setRetryPolicy(FallthroughRetryPolic
Hi guys, I was wondering how should hadoop and cassandra integrate with
each other? Currently I am running a spring-data framework to integrate
those 2. I wonder if there are other ways. Also is it possible to access
cassandra from remote facility? thanks a lot!
Hi,
I am using cassandra 2.1 . My goal is to do cassandra client to node
security using SSL with my self-signed CA.
Self-signed CA is giving me following files.
1. ca.crt
2. ca.key
3. client.csr
4. client.crt
5. client.key
6. client.p12
I am creating .jks (client.jks) file from client.p12 using
16 matches
Mail list logo
