We can set root password new or update of all nodes in a MemSQL cluster, password with your desired password,

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The MemSQL Ops do not have set the login credential by default and it's open can access. The MemSQL comes with an enhanced superuser account that locks down read and write access Superusers can be set with the below command,

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On previous post we have looked install libssl-dev package in ubuntu machine, this page shows you To remove libssl-dev package itself from Ubuntu 14.04 execute on terminal,

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A core file or core dump is a file that records the memory image of a running process and its process status, to find out getting a segmentation fault.

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If you may have receives an error like the command could not be located because sbin is not included in the PATH environment variable.

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Assume that, some files are stored in my user path with .txt suffix. If you want to rename them all to follow this pattern.

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If you have a script or a command to execute in another user, assume that the Hadoop command to execute in Hadoop user from the root, use the below commands,

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