06-22-2018
Quote:
Originally Posted by
solaris_1977
2- How do I track, at what level it is failing ? I checked AWS instance and it was always up and no downtime on that Centos linux.
I don't think it is a matter of tools but a matter of organised debugging: let us first consider what could have gone wrong:
1) the server('s OS) - you ruled that out
2) the application software, i.e. Apache and/or whatever works on top of it.
3) the network connection of your server: possible reasons include network congestion, broadcast storms, intermittent hardware outage, ...
4) the connection between you and your server: caching mechanisms like Cloudflare may influence the connectivity until the cache is filled.
This off the top of my head list is probably neither complete nor detailed enough. You are welcome to edit it until it fits your environment. Once you have done that you start ruling out one point or sub-point after the other: for instance the application stack you use could be tested by a client working from within the server automatically and so foregoing the network connections otherwise necessary. Once you have established that you move on to the next point in the list.
Debugging is just the organised application of logic and a few usually rather simple tests once you have properly envisioned how things are supposed to work and what depends on what.
I hope this helps.
bakunin
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LEARN ABOUT DEBIAN
s3rmbucket
S3RMBUCKET(1p) User Contributed Perl Documentation S3RMBUCKET(1p)
NAME
s3rmbucket - Delete Amazon AWS S3 buckets
SYNOPSIS
s3rmbucket [options] [bucket ...]
Options:
--access-key AWS Access Key ID
--secret-key AWS Secret Access Key
Environment:
AWS_ACCESS_KEY_ID
AWS_ACCESS_KEY_SECRET
OPTIONS
--help Print a brief help message and exits.
--man Prints the manual page and exits.
--verbose
Print a message for each created bucket.
--access-key and --secret-key
Specify the "AWS Access Key Identifiers" for the AWS account. --access-key is the "Access Key ID", and --secret-key is the "Secret
Access Key". These are effectively the "username" and "password" to the AWS account, and should be kept confidential.
The access keys MUST be specified, either via these command line parameters, or via the AWS_ACCESS_KEY_ID and AWS_ACCESS_KEY_SECRET
environment variables.
Specifying them on the command line overrides the environment variables.
--secure
Uses SSL/TLS HTTPS to communicate with the AWS service, instead of HTTP.
bucket One or more bucket names. As many as possible will be deleted.
A bucket may only be deleted if it is empty.
Bucket names must be between 3 and 255 characters long, and can only contain alphanumeric characters, underscore, period, and dash.
Bucket names are case sensitive.
If a bucket name begins with one or more dashes, it might be mistaken for a command line option. If this is the case, separate the
command line options from the bucket names with two dashes, like so:
s3rmbucket --verbose -- --bucketname
ENVIRONMENT VARIABLES
AWS_ACCESS_KEY_ID and AWS_ACCESS_KEY_SECRET
Specify the "AWS Access Key Identifiers" for the AWS account. AWS_ACCESS_KEY_ID contains the "Access Key ID", and
AWS_ACCESS_KEY_SECRET contains the "Secret Access Key". These are effectively the "username" and "password" to the AWS service,
and should be kept confidential.
The access keys MUST be specified, either via these environment variables, or via the --access-key and --secret-key command line
parameters.
If the command line parameters are set, they override these environment variables.
CONFIGURATION FILE
The configuration options will be read from the file "~/.s3-tools" if it exists. The format is the same as the command line options with
one option per line. For example, the file could contain:
--access-key <AWS access key>
--secret-key <AWS secret key>
--secure
This example configuration file would specify the AWS access keys and that a secure connection using HTTPS should be used for all
communications.
DESCRIPTION
Delete buckets in the Amazon Simple Storage Service (S3). A bucket may only be deleted if it is empty.
BUGS
Report bugs to Mark Atwood mark@fallenpegasus.com.
Occasionally the S3 service will randomly fail for no externally apparent reason. When that happens, this tool should retry, with a delay
and a backoff.
Access to the S3 service can be authenticated with a X.509 certificate, instead of via the "AWS Access Key Identifiers". This tool should
support that.
It might be useful to be able to specify the "AWS Access Key Identifiers" in the user's "~/.netrc" file. This tool should support that.
Some errors and warnings are very "Perl-ish", and can be confusing.
A bucket can only be deleted if it is empty. It might be useful to add an option to delete every item in the bucket before then deleting
it, similar to the semantics of the "rm -rf dir" command. This tool should support that.
AUTHOR
Written by Mark Atwood mark@fallenpegasus.com.
Many thanks to Wotan LLC <http://wotanllc.com>, for supporting the development of these S3 tools.
Many thanks to the Amazon AWS engineers for developing S3.
SEE ALSO
These tools use the Net::Amazon:S3 Perl module.
The Amazon Simple Storage Service (S3) is documented at <http://aws.amazon.com/s3>.
perl v5.10.0 2009-03-08 S3RMBUCKET(1p)