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Type: Posts; User: nshi

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  1. Hi Miyuru, Could the server be terminated...

    Hi Miyuru,

    Could the server be terminated before the client? You can add a status listener to the client instance to track when the connection is closed.
    ...
  2. Hi Miyuru, The exception is thrown when you...

    Hi Miyuru,

    The exception is thrown when you try to call a procedure on a client that is closed or has a broken connection to the server. You have to call Client.createConnection() before using the...
  3. Hi ccherng, Partition (fault) detection refers...

    Hi ccherng,

    Partition (fault) detection refers to the k-safety feature, where you have k+1 copies of the data in the database. When machines are separated from each other due to a network...
  4. Hi leobon, You are calling the Insert...

    Hi leobon,

    You are calling the Insert procedure from the client once for each row. Each call to Insert is an individual transaction. You can rollback a single transaction by throwing...
  5. Hi leobon, Throwing the VoltAbortException...

    Hi leobon,

    Throwing the VoltAbortException will only take effect inside the procedure.

    Transactions in VoltDB run from start to completion on the server. Your procedure class is run on the...
  6. Hi leobon, When you say that it didn't take...

    Hi leobon,

    When you say that it didn't take effect, do yo mean that the insertion succeed even though the transaction was aborted?

    Could you share the procedure code with us? You can email me...
  7. That means calling createConnection multiple...

    That means calling createConnection multiple times on the same client instance to connect to all the hosts in your cluster. You can see an example at...
  8. Hi leobon, The procedures and tables are...

    Hi leobon,

    The procedures and tables are properly partitioned, so they should be fine.



    You were calling the procedure synchronously, which means that the call will block until the response...
  9. Hi Leobon, It looks like that the procedure...

    Hi Leobon,

    It looks like that the procedure you use may have not been partitioned. Were you using a stored procedure or were you using adhoc queries? Can you share the queries?

    What were you...
  10. Hi Marcin, The message you saw is fine. A...

    Hi Marcin,

    The message you saw is fine. A complete snapshot of your system takes about 466 seconds to finish. Any attempt to snapshot again when a snapshot is already in progress will generate...
  11. I don't see any files attached to this post....

    I don't see any files attached to this post. Maybe you forgot to upload them?



    The larger the size of the command log, the longer it takes to replay. The system will try to truncate the log...
  12. Hi Marcin, The network delays may not be...

    Hi Marcin,

    The network delays may not be caused by Java GCs. There are some GCs that took about 500ms, but not very often.

    The network delay caused one of the client connection to be closed...
  13. WARN: Snapshot save feasibility test failed for...

    WARN: Snapshot save feasibility test failed for host 0 table with error message SNAPSHOT IN PROGRESS


    When command logging is enabled, the system will try to issue a snapshot to truncate the...
  14. Hi Monika, You are correct. With a role that...

    Hi Monika,

    You are correct. With a role that has permission to adhoc, defaultproc, and sysproc, the user can call any procedures.

    However, as you may have noticed already, sqlcmd still allows...
  15. Hi Monika, As sqlcmd starts, it issues several...

    Hi Monika,

    As sqlcmd starts, it issues several system procedure calls to retrieve information about procedures available in the system. The user you added does not have permission to call system...
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    No, you don't need to start the Enterprise...

    No, you don't need to start the Enterprise Manager to use JMX. By default, the JMX service listens on port 9090. You can simply use hostname:9090 in jconsole to connect to the server. Authentication...
  17. Hi Qian, The following log message indicated...

    Hi Qian,

    The following log message indicated that either a node in the cluster had failed or the network connection between the two nodes broke, which caused the NullPointerExceptions afterwards....
  18. Hi Qian, The NullPointerExceptions may be...

    Hi Qian,

    The NullPointerExceptions may be caused by the node failures happened immediately before that. The log indicated that some other nodes in the cluster had failed at 2013-11-21 13:32:30,...
  19. Hi Qian, The stack traces look like it was...

    Hi Qian,

    The stack traces look like it was from a version prior to 3.0. Are you running with v2.x?

    We have re-architected how transactions are managed in the system since 3.0. This should no...
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    The error message above means that node1 could...

    The error message above means that node1 could not establish a connection to node2, most likely because node2 was not running any more.

    node2 might have terminated itself when you brought down...
  21. Hi, The error indicates that you may have a...

    Hi,

    The error indicates that you may have a procedure trying to insert a row that does not belong to the given partition. This could happen when you use one value as the partitioning parameter...
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    The PHP invoke/invokeAsync methods are generic...

    The PHP invoke/invokeAsync methods are generic calls that allow you to invoke any stored procedure. The PHP client is documented in the API README.

    For auto-generated stored procedures, they are...
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    If you have a table named Helloworld, you can...

    If you have a table named Helloworld, you can call the auto-generated insert procedure to insert a row. The following PHP statements will insert a row with values (3, 4, 5) into the table and check...
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    Hi Francis, The PHP driver doesn't support...

    Hi Francis,

    The PHP driver doesn't support passing array parameter to procedure yet. However, you can work around this by specifying the parameter type as string and split the string into an array...
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    Hi, Can you paste your VoltDB log file here?...

    Hi,

    Can you paste your VoltDB log file here? I'll check if the server process successfully bound to the port on startup. Can you also try running the following command on your desktop and paste...
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