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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin: 10px 0 0 0; margin-top: 0">With my limited understanding of the code base, I infer that shibd fetches each of those uri's to validate them (which I think is logical); each of these fetches takes 2 seconds.</p> <p style="margin: 10px 0 0 0">Using a "good" build of libcurl, the full run of "shibd -t" takes about 1.5s. Using a "bad" build of libcurl, it takes about 13.5s. 6 XML resources times 2 seconds each, the math works out too nicely...</p> <p style="margin: 10px 0 0 0">Again, no proxy configuration is used.</p> <p style="margin: 10px 0 0 0">Stracing shibd shows a DNS lookup is made to the fqdn, followed by creation of a socket, then a 2 second delay (nothing happens at all), then a new connection and communication through the socket, this several times (I expect it to be 6 times but I never actually counted them)</p> <p style="margin: 10px 0 0 0"> </p>
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<pre class="code-java" style="margin: 10px 0 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">16652 15:08:10.610301 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 3
16652 15:08:10.610370 connect(3, {sa_family=AF_INET, sin_port=htons(443), sin_addr=inet_addr(<span class="code-quote" style="color: #009100">"[IPV4_of_metadata_server]"</span>)}, 16) = 0
16652 15:08:10.610448 getsockname(3, {sa_family=AF_INET, sin_port=htons(43168), sin_addr=inet_addr(<span class="code-quote" style="color: #009100">"[IPV4_of_this_server]"</span>)}, [16]) = 0
16652 15:08:10.610523 close(3) = 0
16652 15:08:10.610590 socket(PF_INET6, SOCK_DGRAM, IPPROTO_IP) = 3
16652 15:08:10.610676 connect(3, {sa_family=AF_INET6, sin6_port=htons(443), inet_pton(AF_INET6, <span class="code-quote" style="color: #009100">"[IPV6_of_metadata_server]"</span>, &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
16652 15:08:10.610781 getsockname(3, {sa_family=AF_INET6, sin6_port=htons(44512), inet_pton(AF_INET6, <span class="code-quote" style="color: #009100">"[IPV6_of_this_server]"</span>, &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0
16652 15:08:10.610859 close(3) = 0
16652 15:08:10.610957 madvise(0x7f0bb1301000, 10465280, MADV_DONTNEED) = 0
16652 15:08:10.611028 _exit(0) = ?
16652 15:08:10.611096 +++ exited with 0 +++
<---- 2 second delay ---->
16648 15:08:12.601947 <... select resumed> ) = 0 (Timeout)
16648 15:08:12.602178 socket(PF_INET6, SOCK_STREAM, IPPROTO_TCP) = 3
16648 15:08:12.602554 setsockopt(3, SOL_TCP, TCP_NODELAY, [1], 4) = 0
16648 15:08:12.602819 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
16648 15:08:12.602960 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
16648 15:08:12.603093 connect(3, {sa_family=AF_INET6, sin6_port=htons(443), inet_pton(AF_INET6, <span class="code-quote" style="color: #009100">"[IPV6_of_metadata_server]"</span>, &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 EINPROGRESS (Operation now in progress)
16648 15:08:12.603363 poll([{fd=3, events=POLLOUT|POLLWRNORM}], 1, 0) = 1 ([{fd=3, revents=POLLOUT|POLLWRNORM}])
16648 15:08:12.603467 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
16648 15:08:12.603587 getpeername(3, {sa_family=AF_INET6, sin6_port=htons(443), inet_pton(AF_INET6, <span class="code-quote" style="color: #009100">"[IPV6_of_metadata_server]"</span>, &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0
16648 15:08:12.603705 getsockname(3, {sa_family=AF_INET6, sin6_port=htons(34534), inet_pton(AF_INET6, <span class="code-quote" style="color: #009100">"[IPV6_of_this_server]"</span>, &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0
16648 15:08:12.604365 brk(0x2817000) = 0x2817000
</pre>
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