Hi Paul,
You are right in the sense that Hive and Hadoop are not optimized for response
time and emphasize more on scalability (on large data set and clusters). It's
also true that Hive currently lacks good micro benchmarks that test the
performance of each operations. However, you can get some
I am new to Hive. I am trying to connect to Hive from a Windows JDBC
client. The Hive server is running on a Linux machine. I'm getting the
following error:
Caused by: java.sql.SQLException: Invalid URL:
jdbc:hive//myserver:1/default
at
org.apache.hadoop.hive.jdbc.HiveConn
Hi Michael, could you give more details about this exception?
What happen if you do a
telnet myserver 1
Ariel
On Tue, Sep 14, 2010 at 10:47 AM, Michael Styles
wrote:
> I am new to Hive. I am trying to connect to Hive from a Windows JDBC
> client. The Hive server is running on a Linux machi
Paul,
Like Ning, I doubt that Hive will be very suitable for the low latency
response times you are looking for here. HBase might work for you
depending on what types of data access you need. For instance, the
count query won't work well directly. Rather, you'd have to have
application co
telnet myserver 1 does not work. I get the following error:
Could not open connection to the host, on port 1: Connect failed
The following works:
ssh myserver
Michael Styles
Senior Software Developer
Business Analytics
Tel: (613) 356-6483, T/L 315-6483
Email: michael.sty...@ca.ibm
I just realized I was missing a ':' in the URL specification - everything
is fine now.
Michael Styles
Senior Software Developer
Business Analytics
Tel: (613) 356-6483, T/L 315-6483
Email: michael.sty...@ca.ibm.com
From: Michael Styles/Ottawa/i...@ibmca
To: hive-user@hadoop.apach
I have a custom Writable called DigestWritable. The DigestWritable is
stored in a SequenceFile.
For illustration, assume it is like this:
public class DigestWritable implements org.apache.hadoop.io.Writable {
String str;
int I;
}
I started to write a SerDe in order to read the Diges
Hi, hive-users,
I am a new Hive users, install hive recently, when I type any query-related
command in Hive cli, it throws the exception, but create table are ok:
$ hive
Hive history file=/tmp/pli/hive_job_log_pli_201009141519_1503313446.txt
hive> create table test5(a int);
OK
Time taken: 2.551 se
Some more context: I run Hive on a client machine which is NOT one of the
hadoop cluster nodes, I suppose Hive can run well and submit job from a
client machine, so I didn't change hadoop-env.sh on cluster nodes. On this
client machine, hadoop java jobs and pig have been successfully submitted to
Depending on the storage engine chosen, MySQL does use a trick similar to what
Ning mentioned (but rather than using indexes, it just reads from a counter it
maintains).
http://www.mysqlperformanceblog.com/2006/12/01/count-for-innodb-tables/
According to that article, if blah_id is NOT NULL, an
ROOM CHANGE TO 211 (one floor up from usual)
Hello Fellow Hadoopists,
We are meeting at 7:15 pm on September 16th at the
University Heights Community Center
5031 University Way NE
Seattle WA 98105
Room #211 note room change
The meetings are informal and highly conversational. If you have
questi
I have a sequence file that has custom Writables in it.
For illustration, assume the value in the SequenceFile is like this:
public class DigestWritable implements org.apache.hadoop.io.Writable {
String str;
int I;
}
I wrote a SerDe, expecting that the value passed into deseriali
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