DataStax Enterprise is big data platform consisting of open source tools such as Apache Cassandra, Solr, Spark, Tinkerpop and more.
Questions tagged [datastax-startup]
184 questions
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Why isn't it possible to use DSE Authentication with Gremlin Server using the GraphSON serializer?
I'm trying to use the GraphSON serializer with gremlin server on a DSE instance that uses DSE Authentication. Based on the TinkerPop provider docs, upon receiving a 407 result, authentication would be achieved by sending the following request…
Leif Halldor Asgeirsson
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Spark Error message: Please consider a new data model based on the query pattern instead of using ALLOW FILTERING
My DSE Opscenter sends me this message:
Please consider a new data model based on the query pattern instead of using ALLOW FILTERING.
And after changing my spark code I already removed the below column value from my query. But the below error…
peter
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SOLR query runs OK only on 1 node out of the 3 nodes with SOLR installed
Here's our problem. We're runnig DSE Enterprise 4.8 with the following configuration:
6 servers with Cassandra
on 3 of them Spark is installes (DSE Analytics)
on the orher 3 SOLR is installed (DSE Search)
We want to do "query stats" with SOLR on…
georgeo
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Spark: Association with remote system failed. Reason: Disassociated
I have a standalone spark job and every time the job finishes, the below warning occurs: I don't really understand the meaning of this and also how to solve this. Would be great if you could help. Thanks
WARN [SparkWorker-0 error logger]…
peter
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error- com.jcraft.jsch.JSchException
Trying to install a node in OpsCenter, I've got this error:
4: Received message is too long: 1349281116
With stack trace:
com.jcraft.jsch.ChannelSftp.start(ChannelSftp.java:315)
com.jcraft.jsch.Channel.connect(Channel.java:152)
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simo
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Cannot record QUEUE latency of n minutes - DSE
One of our nodes in our 3 node cluster is down and on checking the log file, it shows the below messages
INFO [keyspace.core Index WorkPool work thread-2] 2016-09-14 14:05:32,891 AbstractMetrics.java:114 - Cannot record QUEUE latency of 11 minutes…
Hitesh
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Dse Graph loader duplicate edges
I have the following csv files:
one is with the person and the other one is with the addresses and one with person address connection (one row on each file plus header). For testing purpose at first run I have:
config create_schema: true, load_new:…
CristiC
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DSE Graph spatial indexes -- search with km?
I'm trying to filter vertices with point properties based on distance, similar to the example at the bottom of the Using search indexes section of the docs:
A query can find all sensors that meet the requirement of being inside the described…
Leif Halldor Asgeirsson
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Can't Edit Config Profile In OpsCenter
I installed OpsCenter 6 on an EC2 Ubuntu 14 node.
I used OpsCenter to generate a 5-cluster DSE 5 cluster, one node for each type of workload. (I excluded hadoop since it is deprecated.)
I've got the cluster working.
Now, when I go back to…
fcnorman
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How to analyze JSON fields in Datastax (DSE) Search
I would like to store JSON data in a column and have it analyzed by the DSE search as a document and not as a text field.
I cannot coerce the JSON docs into a table because they do not follow a common schema (or any reasonably sized set of…
kostja
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datastax-agent v6.0.0 ssl connection error to opscenter 6.0.0
I am working to set up DSE 5 on AWS. I have a separate OpsCenter 6.0.0 node. I have three cluster nodes, a, b and c.
Each server, OpsCenter plus 3 nodes, is an Ubuntu 14.04 server with Oracle JDK1.8.0_92 installed.
On the OpsCenter node, I…
fcnorman
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can we use Spark sql for reporting queries in REST web services
Some basic question regarding Spark. Can we use spark only in the context of processing jobs?In our use case we have stream of positon and motion data which we can refine and save it to cassandra tables.That is done with kafka and spark…
Krishna Kumari
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Opscenter 6.0 agents timeout. Prompting to reinstall multiple times
Upgraded to the latest DSE Opscenter 6.0 via apt on Ubuntu 14.10 LTS from Opscenter 5. After clean installs, 3-4 agents in a 3-dc/6-node DSE 4.8 cluster are reporting issues as shown.
The agent logs on the nodes show issues as below:
INFO…
c360ian
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datastax java driver - how to configure LOCAL_SERIAL for lightweight transactions
We have DSE 4.8.7 cluster with 3 datacenters, 5 nodes each.
Ww have a keyspace with RF 3, 3, 2.
We're using lightweight transactions.
When performing operations that involve shutting down a node on the datacenter with RF2, we have issues with the…
Dan Priscornic
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Can we use Datastax Enterprise Opscenter with existing Apache cluster?
So we just joined the Datastax startup program, and have an existing cluster of Apache Cassandra nodes. We'd like to use some of the enterprise features of opscenter, like continuous repair and rebalancing data.
In order to utilize those, do we need…
Karim Varela
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