How can I scan through rownames in HBase without requesting any column data? I want to make the scan faster by omitting all columns as I need just the rownames.
I have around 1 Gig of image .png files in my HDFS. Can anyone suggest me a way to store the index va开发者_开发问答lues to these images in HBase and retrieve the image by querying HBase. Or how can I
I have one master and one regionserer running on one machine,now I want to add another region server to it.
i use grails-1.3.2 and gorm-hbase-0.2.4 plugin. Sometimes i need to change tables structure(add new tables or columns).
I am using DataNucleus with HBase. I had a table user. It contained 4 rows. Now I added a new column to the table. Now everytime I access any old user object which does not have this column DataNucleu
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,o开发者_JS百科r expertise, but this question will likely soli
I am new to using Maven. I have Java files that have dependencies. Like for example: import org.apache.hadoop.fs.Path;
I am using Spring + Datanucleus JDO + Hbase. Hbase is on a fully distributed mode with two nodes. I am facing serious performance issues here.
So, mig开发者_如何学Pythonht sound like an odd question, but is it faster to compare 2 String\'s, or byte[]\'s (using Arrays.equals())? I\'m working with Hadoop/Hbase, and I get byte[] as the value fr
I am trying to put rows into HBase (0.90.0) in batches of size ~ 1000 (rows) I have multiple producer threads writing data into a queue, and a single consumer thread which wakes up every couple of min
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