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1. How to attach to and inspect a runni... How to attach to and inspect a running Python process.md

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   `gdb` can be used to attach a running Python process and inspect its internal status by monitoring threads and their 

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   respective stack trace, with no need to use any particular option when first launching the process. In this way, you can

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   debug processes that were launched with no prior debugging intention.

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   The following procedure needs `/proc/sys/kernel/yama/ptrace_scope` to be set to `1`.

2. Increase CentOS / AmazonAMI EC2 VM d... Increase CentOS / AmazonAMI EC2 VM disk size on the go

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   1. In the EC2 dashboard, select the VM for which you want to resize the disk.

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   2. Click on the `Storage` tab -> `Volume ID` to open the EBS volume dashboard.

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   3. Click on the `Actions` button -> `Modify volume` to open the volume settings.

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   4. Resize the volume and click on `Modify` to apply the changes.

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       * You can launch `lsblk` on the affected EC2 VM to check that while the volume size has changed, the internal partitions still have the old dimensions.