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  1. Solution Center
  2. SOL-476

Operation and Support in Virtualized Environments

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    • Type: How To
    • Status: Published
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      EXASOL may provide limited support in case of operating EXASOL in a virtual environment

      Requirements and restrictions for support in virtual environments:

      • Disabled write caching. Any kind of write cache has to be disabled to provide for consistency.
      • Disabled memory balooning and any balooning drivers.
      • Virtualization software: VMWare ESX, VirtualBox, KVM, XEN (Microsoft HyperV is currently not supported)
      • Do not use virtualization functionalities that are not possible on physical hardware, e.g. live migration, suspend. These functionalties may destroy your database when applied to an active database system.

      Recommendations

      Single VM on host: When operating EXASOL in a virtualized environment, no other virtual machine should be operated on the same physical hardware.

      When migrating a virtual machine, shut down all virtual machines belonging to the database cluster first. After moving the VM ensure that network settings remain constant (IP address,Mac adress etc.)

      Running EXASOL on a virtual machine will be slower than running natively because of the overhead of virtualization.

      Further support restrictions on virtualized environments

      When operating EXASOL in a virtualized environment, the customer, along with the software vendor of the virtualization product, will be responsible for issues that arise at the hardware or operating system layer as a result of the use of the virtualization software.

      EXASOL will not require customers to recreate and troubleshoot every issue in a non-virtual environment; however, EXASOL does reserve the right to request our customers to reproduce certain issues in a native certified hardware environment.

      EXASOL will typically make this request only when there is reason to believe that the virtual environment is a contributing factor to the issue.

      Where issues are confirmed to be unrelated to the virtualization software, EXASOL will support its software in a manner that is consistent with support provided for the certified physical hardware..

      If an issue occurs only in a virtual environment and cannot be reproduced in a native certified hardware environment, EXASOL reserves the right not to treat such issues as EXASOL product defects and not to fix them. This also applies to performance issues. Moreover, EXASOL might refuse support if the issue aroused in combination with a virtualization functionality that is not possible on physical hardware (including, without limitation: live migration, suspend, timewalker).

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      EXASOL may provide limited support in case of operating EXASOL in a virtual environment Requirements and restrictions for support in virtual environments: Disabled write caching. Any kind of write cache has to be disabled to provide for consistency. Disabled memory balooning and any balooning drivers. Virtualization software: VMWare ESX, VirtualBox, KVM, XEN (Microsoft HyperV is currently not supported) Do not use virtualization functionalities that are not possible on physical hardware, e.g. live migration, suspend . These functionalties may destroy your database when applied to an active database system. Recommendations Single VM on host: When operating EXASOL in a virtualized environment, no other virtual machine should be operated on the same physical hardware. When migrating a virtual machine, shut down all virtual machines belonging to the database cluster first. After moving the VM ensure that network settings remain constant (IP address,Mac adress etc.) Running EXASOL on a virtual machine will be slower than running natively because of the overhead of virtualization. Further support restrictions on virtualized environments When operating EXASOL in a virtualized environment, the customer, along with the software vendor of the virtualization product, will be responsible for issues that arise at the hardware or operating system layer as a result of the use of the virtualization software. EXASOL will not require customers to recreate and troubleshoot every issue in a non-virtual environment; however, EXASOL does reserve the right to request our customers to reproduce certain issues in a native certified hardware environment. EXASOL will typically make this request only when there is reason to believe that the virtual environment is a contributing factor to the issue. Where issues are confirmed to be unrelated to the virtualization software, EXASOL will support its software in a manner that is consistent with support provided for the certified physical hardware.. If an issue occurs only in a virtual environment and cannot be reproduced in a native certified hardware environment, EXASOL reserves the right not to treat such issues as EXASOL product defects and not to fix them. This also applies to performance issues. Moreover, EXASOL might refuse support if the issue aroused in combination with a virtualization functionality that is not possible on physical hardware (including, without limitation: live migration, suspend, timewalker).
    • Category 1:
      Cluster Administration
    • Category 2:
      Plattform Support

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          • Assignee:
            CaptainEXA Captain EXASOL
            Reporter:
            CaptainEXA Captain EXASOL
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            • Created:
              Updated: