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Type: Posts; User: Sabrina

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    VoltDB SQL Permission

    Hi,

    I greated a user with the role "user". So the greated user should have SQL and ALLPROC permissions.
    In the documentation is the information, that the user can run DDL statements. When I try...
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    Installation with wrong permissions

    Hello,

    I installed VoltDB as in the documentation mentioned (https://docs.voltdb.com/UsingVoltDB/installDist.php): "Note that installing as root using the sudo command makes the installation...
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    Hi Ben, you are right, that's no "normal"...

    Hi Ben,

    you are right, that's no "normal" use-case. I want to / or try to find out how long the authentication time takes.
    With one server the connection time is 0.4510 sec and with more...
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    Authentication Mechanism

    Hello,

    the Authentication Time
    dbConnection = DriverManager.getConnection(DATABASE_URL, properties);
    takes in VoltDB about 0,5 Sekunden. Which protocol is in use? Is there some optimization...
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    Hallo Peter, thanks for your answer. In the...

    Hallo Peter,

    thanks for your answer. In the documentation I saw, that the JMX Port is also for the VoltDB Enterprise Manager. I'm right? So I additionally would only need to set the replication...
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    Hello Peter, thank you, you solved my...

    Hello Peter,

    thank you, you solved my problem. So I must define unique ports for each (of the 8 processes). From where do you know the parameters? I cannot find a documentation. How can I set the...
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    Authentication between servers

    Hallo,

    I'm right that there is no authentication between two server hosts? Only the deployment file must be identical. Is there any form of authentication?

    Thanks.

    Best regards,
    Sabrina
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    Start a second database

    Hello,

    I want to serve more than one database on a host (because of multi tenancy). How is it possible to start a second database?
    I created a second deployment.xml file, but when I try to...
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    Authentication with hashed password

    Hello,

    I'm using voltdb with a java application. I have modified the deployment.xml file, to use security and roles:

    ...
    <security enabled="true"/>
    <users>
    <user name="sandra"
    ...
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    Hello, I'm looking for some information about...

    Hello, I'm looking for some information about multi tenant and VoltDB - this was the only post I found. Has VoltDB no multi-tenant implementation (different databases for different tenants)?
    ...
  11. Hello Ben, thanks for your reply. Your...

    Hello Ben,

    thanks for your reply. Your explanation is clear, but when I am using 1 server, with 3 partitions, I only can be 3 times faster with async, or? But in my case the asynchronous is 6...
  12. Hello, the thread was really helpful to me. ...

    Hello,

    the thread was really helpful to me.
    But my question is: Why is asynchronous so much faster than synchronous with also one server? I have 12.199 Transactions/s with Async and 2.325...
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    Hi Steve, great - the problem was the start...

    Hi Steve,

    great - the problem was the start command. Now it works fine!
    How often does VoltDB create a snapshot, when there is nothing configured (like my deployment.xml file).

    Thanks,...
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    1,614

    With Durability, no data after restart

    Hello,

    I'm using Enterprise Edition VoltDB 4.0.2.3 and my deployment.xml looks like this:
    <?xml version="1.0" ?>
    <deployment>
    <cluster hostcount="1" sitesperhost="3" kfactor="0"/>...
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    Hello, I knew the thread is one year old. But...

    Hello,

    I knew the thread is one year old. But I'm asking the same question. Is it possible to add nodes to a cluster without downtime? Where I can find the information? At the moment I always...
  16. Thread: Dbt2

    by Sabrina
    Replies
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    2,136

    Dbt2

    Hello,

    is anyone out there who tested VoltDB with the DBT2 Benchmark? I'm using the DBT2 Benchmark to test other databases and would be interested how is the result with VoltDB.

    Thanks.
    ...
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