pkang on "copy from only load 10000 rows"
I have a single node Enterprise. use copy from to load data.the csv has 1 million records.the load went throught shows : 65536 rows imported in 1 minute and 7.852 seconds. However when I do a count(*),...
View Articlevs on "Extracting performance metrics from OpsCenter tables"
Hi, I would like to query the OpsCenter tables and download the data [for E.g: System utilization such as CPU/Memory/Disk] during insert heavy workloads. Is there some documentation that talks about...
View Articlecsuresh2 on "Building a cluster with OpsCenter"
Hello,I have currently setup OpsCenter (enterprise 3.0.1) on a Ubuntu OS and i'm able to manage existing clusters well. But Opscenter errors out (shown below) when I try to build a cluster.Error:...
View Articleaeham on "UPDATEs to a specific row in Cassandra appear to go missing"
Hi guys,I'm experimenting with a 4-node Cassandra (1.2) cluster which I've just setup on CentOS 6.4 across 4 VMs. First, I created a keyspace with a replication factor of 3 and within it created a...
View Articlemandmzoom on "Installing cassandra on ec2"
i was trying to configure "dse and opscenter" on amazon ec2 and when i create cluster from my ec2 opscenter node i always get an error "Error loading alerts: Alerts have not been loaded yet. There may...
View Articlecsuresh2 on "Unable to fetch node information from agents"
Hi,I am managing a cluster with two datacenters (each having atleast 5 nodes). I added the seed nodes to start managing from the ops center. All nodes have Ubuntu setup on them with all the relevant...
View Articlegdelgado on "Impala on DSE"
Has anyone been successful in installing Impala on one of the DSE Hadoop nodes. I want to know if its supported within a DSE Hadoop node installation to install Impala and have it working with the...
View Articlevs on "Incorrect display of nodes in Cluster view for Cassandra with Virtual...
I just started using the virtual nodes concept of Cassandra 1.2 by setting the num_tokens to 128. With nodetool it is evident that the cluster is (well) nearly balanced. However, when I use the Ring...
View Articlemkarthigaimuthu_deneebo.com on "Hive Mapper part is not getting started"
Dear all, I've mapped the cassandra column family with hive external table using DSE3.0.When I ran the query for certain predicate like select count(column1),column2 and then group by based on column2...
View Articleken.hancock@schange.com on "memtable_flush_queue_size and Solr?"
Node configuration guide states the following:memtable_flush_queue_size(Default: 4) The number of full memtables to allow pending flush, that is, waiting for a writer thread. At a minimum, set to the...
View Articlehwangj on "Unable to open Opscenter after enabling authentication"
Hi, I have DSE 3.02 up with two cassandra and one hadoop node cluster. Everything works fine until I enabled the two parameters in cassandra.yaml. They are authenticator:...
View Articlemandmzoom on "Portfolio Manager demo issues"
I was following the Portfolio Manager demo from this link...
View Articleeldho on "Error on 'select * from' after Bulk Upload using SSTable"
I am a newbie in Cassandra world. I was trying to bulk upload some data to Cassandra. I ran sstableloader to get the following output. I use cassandra 1.2Streaming revelant part of...
View Articlecsuresh2 on "Cluster performance metrics"
Hi,http://www.datastax.com/docs/opscenter/online_help/performance/cluster_metrics#write-request-latencyIn the above link write/read request latency is said to be measured in microseconds. And in the...
View ArticleMario on "Agent Connection Errored: Timed out waiting for agent to connect"
Hi all,When i am trying to add node from data stax opscenter ..It gives the following errorAgent Connection Errored: Timed out waiting for agent to connectAfter 4 green Dots it showed red dot.Operating...
View ArticleVarun.Tahin_rancoretech.com on "UnknownHostException during auto discovery...
Hello All, I am running a 3-node cluster with ipv6 addresses. And I am running the application by providing only one ipv6 address and kept the auto discovery hosts property set to true. So when the...
View Articlevgopal on "Aggregate function in cassandra using cql command"
I am currently using cassandra 1.2.6 version bundle for my purpose. I need to use the aggregate function in cassandra using cqlsh command is it possible and also would like to have example on Search...
View Articlealdep on "Configuring Cassandra with private IP for internode communications"
am trying to create a Cassandra cluster. For inter-node communications, on each node, I am using a separate interface with an internal IP address that is not accessible form outside. In addition each...
View ArticleDipankar on "Issues while testing solr with dynamic fields of different data...
Issues while testing solr with dynamic fields of different data types: we have a schema.xml<schema name="dynamic_all" version="1.1"><types><fieldType name="tdouble"...
View Articletsteinmaurer on "Troubles installing DSE 3 on Ubuntu via apt-get"
Hello,for test purposes, I'm trying to install DSE 3 in an Ubuntu 12.04 Desktop LTS 64-bit VMWare. I had previously installed DSC, but uninstalled the community edition before starting to install DSE....
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