<p dir="auto">It appears that our event stream is putting pressure on etcd and leading to crashes.  Investigate event + etcd memory performance</p>
<p dir="auto"><strong>Is this a request for help?</strong> (If yes, you should use our troubleshooting guide and community support channels, see <a href="http://kubernetes.io/docs/troubleshooting/" rel="nofollow">http://kubernetes.io/docs/troubleshooting/</a>.): No</p>
<p dir="auto"><strong>What keywords did you search in Kubernetes issues before filing this one?</strong> (If you have found any duplicates, you should instead reply there.): sha1sum</p>
<hr>
<p dir="auto"><strong>Is this a BUG REPORT or FEATURE REQUEST?</strong> (choose one): BUG REPORT</p>
<p dir="auto"><strong>Kubernetes version</strong> (use <code class="notranslate">kubectl version</code>): 1.5</p>
<p dir="auto"><strong>What happened</strong>: Using the <a href="https://docs.google.com/document/d/19Q4AzWLD5jd2FNaPyKy2xdTN4JIGUUpvwDwg0tcBkyc/edit#" rel="nofollow">manual upgrade procedures</a> to debug <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="190886594" data-permission-text="Title is private" data-url="https://github.com/kubernetes/kubernetes/issues/37257" data-hovercard-type="issue" data-hovercard-url="/kubernetes/kubernetes/issues/37257/hovercard" href="https://github.com/kubernetes/kubernetes/issues/37257">#37257</a> and found that upgrade.sh crashed.</p>
<p dir="auto"><strong>What you expected to happen</strong>: The shell script to not crash.</p>
<p dir="auto"><strong>How to reproduce it</strong> (as minimally and precisely as possible): Follow manual upgrade procedures on a system that doesn't have <code class="notranslate">sha1sum</code> in the path (e.g. Mac).</p>