I did a terrible mistake two days ago trying to compile and install the glibc library. The process failed and left me out of the cold without any option to restore back to previous state. Every commands except cd threw this back at me :
relocation error: /lib/tls/libc.so.6: symbol _dl_out_of_memory, version GLIBC_PRIVATE not defined in file ld-linux.so.2 with link time reference
If I were on a dedicated server, there would be an option to reformat the disk, reinstall the os then restore the backed up databases & files (thank god i did do back up, not often but enough to save my ass some times). But that would take at least a day to complete: 12 hours waiting for the support to reformat & reinstall OS, plus the time you need to download off-site backups and restoring them. The latter is definitely not a pleasant experience.
The VPS technology did save me this time: a few click on the VPS control panel and after a cup of coffee everything went back to normal. Not the state right before the glibc corruption but 5 days ago (i should do backup more frequently).
Another strong point of a VPS is scalability. Not the scalability Amazon AWS offers (it’s on a complete different level). I’m talking about the scale of the gap between a shared hosting environment and a dedicated hosting environment. The server can gradually grow with your site, although not instantly, and you can move your server image around if you want.
So what’s the point ? The point is: virtualization & cloud computing has unquestionably very bright future !
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