A system reboot brought back stability for circa 24 hours, but the system went down again this morning. Interestingly, around 18 hours after reboot network activity spiked substantially, and steadily.
At it's peak, a meagre 0.7mb/s upstream PHP stopped responding properly to requests.
I'm also seeing this issue replicated on 14.04.2 -
$ apt-cache show libc6 | grep Version
Version: 2.19-0ubuntu6.11
Version: 2.19-0ubuntu6
cat /var/log/ apt/history. log
... openssl27: amd64 (2.12.23- 12ubuntu2. 6, 2.12.23- 12ubuntu2. 7), multiarch- support: amd64 (2.19-0ubuntu6.9, 2.19-0ubuntu6.10), libfreetype6:amd64 (2.5.2-1ubuntu2.5, 2.5.2-1ubuntu2.6), libc-dev-bin:amd64 (2.19-0ubuntu6.9, 2.19-0ubuntu6.10), libc-bin:amd64 (2.19-0ubuntu6.9, 2.19-0ubuntu6.10), libc6:amd64 (2.19-0ubuntu6.9, 2.19-0ubuntu6.10), libgnutls26:amd64 (2.12.23- 12ubuntu2. 6, 2.12.23- 12ubuntu2. 7), libc6-dev:amd64 (2.19-0ubuntu6.9, 2.19-0ubuntu6.10)
Start-Date: 2017-03-21 07:11:13
Upgrade: libgnutls-
End-Date: 2017-03-21 07:11:31
...
A system reboot brought back stability for circa 24 hours, but the system went down again this morning. Interestingly, around 18 hours after reboot network activity spiked substantially, and steadily.
At it's peak, a meagre 0.7mb/s upstream PHP stopped responding properly to requests.