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Questions tagged [datastax-enterprise]

An enterprise distribution of the open-source Apache Cassandra project with Apache Spark and Apache Solr.

An enterprise distribution of the open-source Apache Cassandra project with extensions for Analytics and Search using Apache Spark and Apache Solr respectively.

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29 questions
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Where is solr.xml on datastax 5 (dse)?

I have dse 5.0 setup with solr and I can't find solr.xml file in solr/home or solr web home. Where it stores solr.xml on dse ?
Ankush T
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How to install old version of datastax-agent for opscenter in cassandra

when i am trying to manually install agents through yum latest version of agent is getting installed rather than the version i am currently using, how can i install the version of agent i want do i need to specify anything in datastax repo ?? I…
user6288321
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how to read statistics.db and summary.db file in cassandra

i am trying to read the Statistics.db file and summary.db file but i couldn't read I want to know what is the data that will be stored in it, any specific format. if so what is the format and what data regarding partition it stores. how can i…
user6288321
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Why can't I create nodes on EC2 default network with OpsCenter 5.2.1?

I've had to update our DataStax OpsCenter service from 5.1.3 to 5.2.1 because when I tried to add a new node to our Cassandra Cluster (DSE 4.6.6 on Amazon EC2) it said that "No nodes were available to retrieve a configuration from." Updating to…
kuteninja
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Datastax Agent 5.1.3 Short os-stats collector failed

after starting datastax agent 5.1.3 on our new servers we are getting following error in the agent.log. ERROR [os-metrics-6] 2015-08-05 13:49:41,565 Short os-stats collector failed java.lang.NullPointerException at…
Olqs
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Opscenter 5.2 missing data for 1day and 1week graph scale

I recently update Opscenter from 5.1 to 5.2, and yesterday just discovered that if I select different 1day or 1week graph scales no data will be shown in the graph. I checked the logs and the chrome console and no issue there, the requests just got…
Luigi
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OpsCenter shows no data metrics

I have a simple two node cluster setup that has been working fine for the last couple of weeks. I haven't made any changes on my nodes, but a few days ago data metrics stopped showing up. By all indications everything else is working fine and…
KingOfHypocrites
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OpsCenter 5.1.2 fails to start with SSL enabled on CentOS 5

This applies to OpsCenter 5.1.0 and 5.1.1 as well. I got the following error when trying to run OpsCenter 5.1.2 on a CentOS 5 server: Unhandled Error Traceback (most recent call last): File…
Gene
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OpsCenter 5.0.1 - xhrstream HTTP Get request cancelled - 0 of 0 agents connected

Connecting to OpsCenter 5.0.1 on OSX Yosemite on the latest Google Chrome 39.0.2171.99 (64-bit) results in these tcp xhrstreams requests being cancelled and i get a message stating 0 of 0 agents connected This means that i cannot see any of the…
benlaplanche
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Datastax repair service questions

So we had a node go down two nights ago, and it took the better part of a day to get it back up. I'm still learning so I'm not familiar with the repair options, but based on the article here:…
zoo_live_crew
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Which direction does `nodetool repair` go?

Let's say I log into a Cassandra node X and issue nodetool repair. Will I only repair the data residing on X? Or will I also automatically repair all other nodes that have replicas of what X holds (that is, reconsile data inconsistencies two-way)?
Ztyx
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DSE Shark worker Jetty port

I just read that the random Shark worker Jetty port can't be fixated. The previous link states: Jetty-based. Each of these services starts on a random port that cannot be configured However, reading the DSE documentation I see no note on this.…
Ztyx
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Spark-Cassandra-Connector Issue Exception in thread "main" java.lang.NoClassDefFoundError: com/datastax/spark/connector/rdd/reader/RowReaderFactory

What is going wrong with the Spark Cassandra Connector could you please help to solve this? Scala File: import com.datastax.spark.connector._ import org.apache.spark.sql.SparkSession import org.apache.spark.{SparkConf, SparkContext} object…
Subhrangshu Adhikary
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How to test to observe Latency Differences when running Cassandra on HDD vs SSD

We had a 3 node cluster running on HDDs. After migrating to SSDs, we ran a load test but haven't seen any latency difference. So we are thinking about running a stress test. Is there any threshold or parameters we should set or any general…
user6288321
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