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https://issues.apache.org/jira/browse/TS-253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12848297#action_12848297
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Manjesh Nilange commented on TS-253:
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John, I'm generally new to TS code and specifically new to the cache code. I'm
having difficulty isolating this issue. Can you give me some details?
I browsed through the cache code and enabled 'cache_scan' debug tag. But that
didn't print out any messages - leading me to believe that the code in
CachePart.cc is perhaps not being used at all. So I tried gdb'ing
traffic_server and breaking on Cache::lookup(). However even when TS was
serving from cache (fs cache configured in storage.config), that function was
never called either - neither at startup nor when processing the request. Can
you tell me how you dumped the above variable? Thanks!
> HTTP Header Host ptr field not set
> ----------------------------------
>
> Key: TS-253
> URL: https://issues.apache.org/jira/browse/TS-253
> Project: Traffic Server
> Issue Type: Bug
> Components: Core
> Reporter: John Plevyak
>
> I noticed while lookup at cache scan that the host field of URLImpl is not
> set correctly.
> the m_ptr_host field is 0x0 while the m_len_host is correct (14).
> here is what it looks like:
> $20 = {<HdrHeapObjImpl> = {m_type = 2, m_length = 120, m_obj_flags = 0},
> m_len_scheme = 4,
> m_len_user = 0, m_len_password = 0, m_len_host = 14, m_len_port = 0,
> m_len_path = 0,
> m_len_params = 27, m_len_query = 0, m_len_fragment = 0,
> m_len_printed_string = 0,
> m_ptr_scheme = 0x0,
> m_ptr_user = 0x7ffff2fe9d2f
> "http://www.google.com/intl/en_ALL/images/logo.gif HTTP/1.1\r\nHost:
> www.google.com\r\nUser-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US;
> rv:1.9.2) Gecko/20100115 Firefox/3.6\r\nAccept: image/png,im"...,
> m_ptr_password = 0x0,
> m_ptr_host = 0x0,
> m_ptr_port = 0x7ffff2fe9d36 "www.google.com/intl/en_ALL/images/logo.gif
> HTTP/1.1\r\nHost: www.google.com\r\nUser-Agent: Mozilla/5.0 (Windows; U;
> Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6\r\nAccept:
> image/png,image/*;q"..., m_ptr_path = 0x0,
> m_ptr_params = 0x7ffff2fe9d45 "intl/en_ALL/images/logo.gif
> HTTP/1.1\r\nHost: www.google.com\r\nUser-Agent: Mozilla/5.0 (Windows; U;
> Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6\r\nAccept:
> image/png,image/*;q=0.8,*/*;q=0.5\r"..., m_ptr_query = 0x0,
> m_ptr_fragment = 0x0, m_ptr_printed_string = 0x0, clean = false,
> m_scheme_wks_idx = 0,
> m_port = 0, m_url_type = 0 '\000', m_type_code = 0 '\000', m_capacity_host
> = 1}
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