squid に関する cache.log メッセージ

Issue

• squid が、cache.log of に以下の 8 つのメッセージを出力しました。各メッセージについて、以下の質問があります。

1. このメッセージはシステムに影響を及ぼしますか?
2. 影響を及ぼす場合は、どのような処置が必要ですか?
3. 影響を及ぼさない場合は、メッセージが出力されないようにする方法はありますか?

 [Message #1]
 2013/09/13 09:12:45| ipcacheParse: No Address records in response to 'ipv6.msftncsi.com'

 [Message #2]
 2013/09/12 12:22:18| clientReadRequest: FD 134 (172.16.7.191:62593) Invalid Request

 [Message #3]
 2013/09/12 15:06:56| sslReadClient: FD 50: read failure: (110) Connection timed out

 [Message #4]
 2013/09/12 18:21:41| sslWriteClient: FD 169: write failure: (32) Broken pipe.

 [Message #5]
 2013/09/12 18:59:03| httpReadReply: Excess data from "GET http://c.baidu.com/c.gif?t=0&q=%C8%FD%C9%FA%C8%FD%CA%C0
 %D5%ED%C9%CF%CA%E9%BC%C7+%CF%C2%BE%ED&p=0&pn=1"

 [Message #6]
 2013/09/12 10:04:03| parseHttpRequest: Requestheader contains NULL characters
 2013/09/12 10:04:03| Failed to parse request headers: http://dm.mlstat.com/update/dm/wg.php
 POST http://dm.mlstat.com/update/dm/wg.php HTTP/1.1
 Accept: */*
 Content-Type: application/x-www-form-urlencoded

 [Message #7]
 2013/09/12 08:34:09| ctx: enter level  0: 'http://gchart.yahoo.co.jp/h?s=998407.O'
 2013/09/12 08:34:09| WARNING: unparseable HTTP header field {HTTP/1.1 200 OK}
 2013/09/12 08:34:09| ctx: exit level  0
 2013/09/12 08:34:09| WARNING: unparseable HTTP header field {HTTP/1.1 200 OK}

 [Message #8]
 2013/09/12 12:02:44| ctx: enter level  0: 'http://vap3sna1.lijit.com/www/delivery/lg.php?bannerid=33990&campaigni
 d=232&cids=232&bids=33990&zoneid=211179&retarget_matches=null&tid=211179_e586bad4277144a5b1eee2253fc68763&channel
 _ids=,&fpr=f72008f3cce9494804544f1dcd707b4a&loc=http%3A%2F%2Fo.yieldsquare.com%2Fwww%2Fdelivery%2Fafr.php%3F14%3D
 1%26zoneid%3D27%26loc%3Dmatome.naver.jp%26id%3Dlfkgmnnajiljnolcgolmmgnecgldgeld%26v%3D0.17.7%26ord%3D1%26cb%3D32a
 24543d49b%26r%3D1&referer=http%3A%2F%2Fo.yieldsquare.com%2Fwww%2Fdelivery%2Fafr.php%3F14%3D1%26zoneid%3D27%26loc%
 3Dmatome.naver.jp%26id%3Dlfkgmnnajiljnolcgolmmgnecgldgeld%26v%3D0.17.7%26ord%3D1%26cb%3D32a24543d49b%26r%3D1&cb=8
 2975616'
 2013/09/12 12:02:44| WARNING: unparseable HTTP header field {: }
 2013/09/12 12:02:44| ctx: exit level  0
 2013/09/12 12:02:44| WARNING: unparseable HTTP header field {: }