tambalavanar on "Java code to perform CFS file operations from remote system...
I'm writing a java program to read & write files to CFS from a remote system (non DSE machine). As suggested in the DataStax Site, I wrote the following piece of code. import java.net.URI; import...
View Articlebryan on "Opscenter v3.2.0 bug with DSE instance"
I've added a performance chart to my dashboard to look at Cassandra JVM memory on one of my SOLR instances and when you startup the opscenter-agent you see this in the agent.log file and the chart...
View Articlebryan on "Error running portfolio demo hive/hadoop job example with DSE 3.1.0...
http://www.datastax.com/documentation/gettingstarted/index.html#getting_started/gettingStartedDemoPortfolio_t.htmldse hive -f /usr/share/dse-demos/portfolio_manager/10_day_loss.qMapReduce Total...
View Articlebryan on "Cassandra table with composite partition key + wide row to HIVE...
I've recently upgraded our evaluation of Datastax to 3.1.0 and started messing around with it again and I'm running into a snag that I was helping you might be able to run this by a technical...
View Articleken.hancock@schange.com on "Splitting to two datacenters"
I have a single 6-node datacenter right now, my main keyspace running replication_strategy Solr:6 and DSE 3.0.1.I'd like to split those to better balance my workloads and I'm stuck on the actual...
View Articleaeham on "Configuring Solr for an existing column family"
Hi,All the DSE search examples I've seen, and followed, demonstrate the creation of a Solr schema which DSE subsequently takes and maps into a new Cassandra column family. What I'm wondering is whether...
View Articledarshanmeel on "Designing a solution"
Hi I have a design question. Suppose you have Order and OrderDetails tables as in RDBMS.But Suppose I have a big text or varchar column OrderDetailDesc which is say like xml column in OrderDetail and...
View Articlejpayne97 on "Error saving column family changes in opscenter"
Using opscenter 3.2.0 and cassandra 3.1.0 1. Go into opscenter 2. Click Schema 3. click on any keyspace 4. click on any column family 5. properties -> edit 6. click save, don't even need to change...
View Articlevs on "'DateType' column name shows incorrect TimeZone info in OpsCenter"
Hi,My column family uses 'DateType' as comparator and a sample date from CLI is as follows: RowKey: 0bc32ce7-0059-3cd4-9ba8-8ace2cb9ac3e:2013-07-22 => (column=2013-07-22 22:58:45+0530,...
View Articlejpayne97 on "After upgrading to 3.1 we now get this error about shards in solr"
java.io.IOException: Unavailable shards for ranges: [(0,56713727820156410577229101238628035242]]We have 3 nodes in 1 cluster for this.The same configs worked in 3.0.2
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 Articledarshanmeel on "Update VS Insert"
I would like to know if I could use just the update statement form client to insert/update the data into the table instead of using Insert and then update if the key exists. What are the performance...
View Article376905351_qq.com on "ERROR cfs.CassandraFileSystemRules: Loading path rules...
when i create table1 (STORED AS textfile) in hive , then i select from table1 into table2(STORED AS SEQUENCEFILE), when the job complete 20%, the result become fail, and then i use "dse hadoop fs -ls...
View Articleken.hancock@schange.com on "Secondary Index on converted Solr node?"
We recently split our 6-node solr datacenter into a no-Solr Cassandra datacenter and a Solr datacenter (dse delegate snitch). I'm noticing high load on one of the nodes in the Cassandra DC and...
View Articleaeham on "Solr and Cassandra's composite keys"
The DSE 2.0 docs (http://www.datastax.com/docs/datastax_enterprise2.0/search/dse_search_schema) clearly state that for Solr "... composite columns .. are not supported...". Is this still the case in...
View Articledemouser on "How to filter the record by using "order by DESC" and "limit 10""
How to filter the record by using "order by DESC" and "limit 10" Whether this will work in cassandra with JPA ?
View Articleashutosh on "HOW TO INSERT Double Column value"
Dear All, I am trying to insert records in my cassandra (name = address) table using Hector lib. I am getting following runtime exception. Please give me some guidance.Please refer ... My Cassandra...
View Articleamey on "DSC 1.2.6 node restart issue"
Hello Everyone,I am facing issues with restarting a node or entire cluster with DSC 1.2.6. Nothing was changed before restarting the node, but it seems that it is unable to join the cluster once...
View Articleasirghi on "CassandraFS - Required field 'storage_type' was not present!"
Hi! When I try to read an existent text file from cassandra FS, I obtain this exception: java.io.IOException: org.apache.thrift.TApplicationException: Required field 'storage_type' was not present!...
View Articlemschenk74 on "Problems after upgrading 5 node cluster from version 3.0.1 to...
Q1: Last week we started to upgrade our cluster (5 realt-time nodes) from 3.0.1 to 3.1.0. After all nodes were upgraded we were not able to see our keyspaces anymore. Did we miss some configuration...
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