[squid-users] Squid exiting all on its own

[Nick Walke]

We're running Squid 3.5.  We noticed today that Squid "exited normally" at
11:10:55 our time.  Here's a log sample:

2016/02/09 11:09:10 kid1| hold write on SSL connection on FD 13
2016/02/09 11:09:14 kid1| hold write on SSL connection on FD 16
2016/02/09 11:09:23 kid1| hold write on SSL connection on FD 18
2016/02/09 11:09:36 kid1| hold write on SSL connection on FD 18
2016/02/09 11:10:11 kid1| hold write on SSL connection on FD 13
2016/02/09 11:10:15 kid1| hold write on SSL connection on FD 16
2016/02/09 11:10:23 kid1| hold write on SSL connection on FD 18
2016/02/09 11:10:24| Current Directory is /run
2016/02/09 11:10:24 kid1| Preparing for shutdown after 312 requests
2016/02/09 11:10:24 kid1| Waiting 30 seconds for active connections to
finish
2016/02/09 11:10:24 kid1| Closing HTTP port [::]:3129
2016/02/09 11:10:24 kid1| Closing HTTPS port [::]:3130
2016/02/09 11:10:26| Squid is already running!  Process ID 30116
2016/02/09 11:10:55 kid1| Shutdown: NTLM authentication.
2016/02/09 11:10:55 kid1| Shutdown: Negotiate authentication.
2016/02/09 11:10:55 kid1| Shutdown: Digest authentication.
2016/02/09 11:10:55 kid1| Shutdown: Basic authentication.
2016/02/09 11:10:55 kid1| Shutting down...
2016/02/09 11:10:55 kid1| storeDirWriteCleanLogs: Starting...
2016/02/09 11:10:55 kid1|   Finished.  Wrote 0 entries.
2016/02/09 11:10:55 kid1|   Took 0.00 seconds (  0.00 entries/sec).
CPU Usage: 0.992 seconds = 0.901 user + 0.091 sys
Maximum Resident Size: 59104 KB
Page faults with physical i/o: 0
2016/02/09 11:10:55 kid1| Logfile: closing log syslog:local4.info
2016/02/09 11:10:55 kid1| Open FD UNSTARTED     6 DNS Socket IPv6
2016/02/09 11:10:55 kid1| Open FD READ/WRITE    7 DNS Socket IPv4
2016/02/09 11:10:55 kid1| Squid Cache (Version 3.5.13): Exiting normally.

Here's my squid config: https://gist.github.com/nwalke/55fea584352016149180

Here's my squid configure:
https://gist.github.com/nwalke/a9fea476cf7b3326ef14

We get these "kid1| hold write on SSL connection on FD" messages a lot, is
this something to be concerned about?

Does anything in this jump out to anyone as a problem?  I can't figure out
what's causing it to stop.
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