TechPush

The problem you experienced was due to us upgrading PHP 5 last night from
5.1.2 to 5.2, which also included a new memory restriction. We’re trying
to implement it for better server stability. It looks like your WP
process was trying to use an excessive amount of memory and it errored
out. Do you have an custom plugins on your WP installs? They may need to
be removed in the future.

We realize that upgrades can break things, and we did do some testing
beforehand as well. However, we’re trying to move ahead and provide the
latest resources for our customers, and this version, which came out in
November, includes many security fixes, among others. We need our
customers’ cooperation to make this work. I noticed that you’re using an
older version of WP on that domain, so upgrading that will be necessary
to match the new PHP version. In general, keeping uptodate with the
applications you’re using is always a good idea - security updates, new
features, etc. It looks like you already did that.

We had rolled back the upgrade for now, and we’ll be sending an
announcement before we attempt the upgrade again, most likely within a
week from now. We will be rethinking the actual amount of the memory
limit, but we will be placing one on PHP processes. So, let me know on
your custom add-ons, plugins, so we can figure out a relatively
acceptable limit that will also ensure stable servers.

看了Dreamhost的回复，问题基本清楚了，这次的fatal error的根源还是Dreamhost升级了PHP版本到5.2，并作了新的内存限制，Google Sitemaps插件虽然有内存泄露的问题，但在之前确实工作良好，这次由于DH的内存限制才爆发了隐患。不能说DH升级不对，但他们应该在确保完全无问题的情况下再升级，并且应该事先通知，显然这一点有疏忽，不过我对他们的回复还是比较满意的 ，我的租用期快到了，如无意外，我想我会继续使用DH的服务

Tags: dreamhost, php, upgrade

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