Re: [Wikitech-l] Min php version
Hi, On Tue, Jul 21, 2015 at 8:13 AM, Tyler Romeo tylerro...@gmail.com wrote: Just as a counter-argument (and, to be clear, I do support raising our minimum version), just because PHP has EOL'ed a version does not mean that some distributions (esp. Debian, Ubuntu) are not providing additional support and security updates. If I remember from the last time we had this discussion, it will still be a couple more months before PHP 5.3 is no longer supported by most major distros, and it will be a while before 5.4 is no longer supported. That's true, here's the specific EOL dates for common distros with PHP 5.3 Debian 6.0 is supported until February 2016 and has PHP 5.3.3 Ubuntu 12.04 is supported until April 2017 and has PHP 5.3.10 RHEL 6/Centos is supported until June 2017 (and limited supported until 2020) and has PHP 5.3.3 (but they also provide officially supported 5.4/5.5 packages) Cheers, Moritz ___ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
Re: [Wikitech-l] [Engineering] Upcoming leap second on Tue 30th
Hi Gabriel, We just talked about this on IRC, so just for other's benefit: With NTP's -x option we should be able to smear the adjustment (by slowing down the system clock temporarily) until the leap second is incorporated into the system time. This avoids non-monotonicity, which is important for systems that use time to capture causality. It would be great to apply the adjustment to all nodes of the cassandra cluster at once, so that their clocks are being slewed in lock-step. Unfortunately this was broken in NTP 4.2.6 and only recently discovered: http://bugs.ntp.org/show_bug.cgi?id=2745 (only fixed in current development/pre-releases). Even if we would backport the fixes to our time servers we'd run into problems, since the local time deviation in the normalisation period wouldn't be consistent across the nodes of the Cassandra cluster. (chrony fully supports NTP smearing since the 2.0 release (27th April 2015), but that's also not a solution for the upcoming leap second). We'll follow up in a separate mail how to best accomodate the Cassandra cluster. Cheers, Moritz ___ Wikitech-l mailing list Wikitech-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikitech-l
