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Is it secure to store passwords as environment variables (rather than as plain text) in config files
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This is called Privileged Access Management, where secrets are stored in a centralized PAM Vault with comprehensive access controls. Gartner lists some such products.
– Amit Naidu
May 15 '19 at ...
ALTER TABLE without locking the table?
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Percona makes a tool called pt-online-schema-change that allows this to be done.
It essentially makes a copy of the table and modifies the new table. To keep the new table in sync with the original it uses triggers to update. This allows the ori...
When to use thread pool in C#? [closed]
...en they should consume no CPU resources. If waiting in a loop that periodically wakes up to check results, then it is wasting CPU. As always it comes down to good coding.
– Bill
Jan 13 '09 at 14:28
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how to calculate binary search complexity
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the same concept explained graphically: stackoverflow.com/a/13093274/550393
– 2cupsOfTech
Feb 22 '16 at 16:51
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hash function for string
...or other such unsigned value (such as the unsigned long in this code). The caller is responsible for taking modulo of the result to fit it to the hash table. The caller controls the table slot being hashed to; not the function. It just returns some unsigned number.
– WhozCraig
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Why is Magento so slow? [closed]
... to Alan Storm's recommendations on caching, there's two things I'd specifically recommend you look into related to caching:
- Make sure caching is in memcached, rather than on disk.
I look after a couple of magento installs, and once you get any sort of load on the system, memcached starts to pe...
Is there a way to get the source code from an APK file?
...>dex2jar->JD-GUI route! Just try open-source APK and DEX decompiler called Jadx: sourceforge.net/projects/jadx/files It has also online version here: javadecompilers.com/apk
– Andrew Rukin
Sep 8 '15 at 5:42
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Why does the C++ STL not provide any “tree” containers?
... we have
std::map (and std::multimap)
std::set (and std::multiset)
Basically the characteristics of these two containers is such that they practically have to be implemented using trees (though this is not actually a requirement).
See also this question:
C tree Implementation
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Spring AOP vs AspectJ
... the Decorator
pattern
Spring-AOP Cons
This is proxy-based AOP, so basically you can only use method-execution joinpoints.
Aspects aren't applied when calling another method within the same class.
There can be a little runtime overhead.
Spring-AOP cannot add an aspect to anything that is not cre...
Using str_replace so that it only acts on the first match?
... approach, but the code has an error, the last parameter of substr_replace call should be strlen($needle) instead of strlen($replace).. please beware about that!!
– Nelson
Sep 21 '10 at 11:47
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