Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83)
Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: SvenDowideit)
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@@ -764,7 +764,14 @@ log entry. |
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Usage: docker pause CONTAINER |
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- Pause all processes within a container |
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+ Pause uses the cgroups freezer to suspend all processes in a container. |
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+ Traditionally when suspending a process the SIGSTOP signal is used, |
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+ which is observable by the process being suspended. With the cgroups freezer |
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+ the process is unaware, and unable to capture, that it is being suspended, |
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+ and subsequently resumed. |
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+ |
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+ For for information on the cgroups freezer see: |
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+ https://www.kernel.org/doc/Documentation/cgroups/freezer-subsystem.txt |
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## ps |
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@@ -1273,7 +1280,7 @@ them to [*Share Images via Repositories*]( |
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Usage: docker unpause CONTAINER |
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- Pause all processes within a container |
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+ Resumes a paused container. |
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## version |
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