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PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185788] Fri, 09 May 2014 10:24 Go to next message
ghpille is currently offline  ghpille
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We have a problem with a specific soap request to one of our webservices, and my impression is that PHP is misbehaving on the TCP level. I'll show you a tcpdump of such session. Can anyone tell me what could be the reason for PHP to behave in this way, unless we've stumbled on a bug?

Mark the FIN flag in the third packet, to which our HAProxy server reacts with three ReSeTs. The post never reaches the destination, which is understandable.


17:42:00.405859 IP we?????.?????.be.60083 > rmgdmzhaproxyip173.dmz.local.http: Flags [.], seq 1804:9044, ack 21378, win 454, options [nop,nop,TS val 1818030407 ecr 2095496264], length 7240
E..|n.@.@.Ro...R.......P...I..](....y......
l\.G|..HPOST /amehoela-jobcv-dao/serviceTeamFacade HTTP/1.1
Host: we?????.?????.be
Connection: Keep-Alive
User-Agent: PHP-SOAP/5.4.21
Content-Type: text/xml; charset=utf-8
SOAPAction: ""
Content-Length: 8300

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://facade.dao.??????.??????.be/"><SOAP-ENV:Body><ns1:saveJob ><arg0><path>/regio/jobs</path><application>JOBCV</application><userIdentifier >14069</userIdentifier><impersonatorIdentifier/><language>nl</language ><site>JOBVLAN</site></arg0><arg1><totalCount>true</totalCount><applications >false</applications><basics>true</basics><company>false</company><contact >false</contact>
snip loads of XML
snip loads of XML
snip loads of XML
<descriptions><name>remunerationDescription</name><value>test</value> </descriptions><educations><educationCode>F</educationCode></educations ><experience>N</experience><externalJobCode>test</externalJobCode><functionCategories ><functionCategory>0100</functionCategory></functionCategories><functionTy


17:42:00.405883 IP we???????.??????.be.60083 > rmgdmzhaproxyip173.dmz.local..http: Flags [P.], seq 9044:9996, ack 21378, win 454, options [nop,nop,TS val 1818030407 ecr 2095496264], length 952
E...n.@.@.j....R.......P......](....`......
l\.G|..Hpe>x:SE</functionType><jobDescriptionText>test</jobDescriptionText ><jobSchedule>x:FULL</jobSchedule><jobTitle>test</jobTitle><jobType>x:TEMP </jobType><language>nl</language><location><address><city>Gemeentenaam </city><countryCode>BE</countryCode><department>West-Vlaanderen</department ><postalCode>8800BE</postalCode><region>VLAAMS GEWEST</region></address><cityCode>8800BE</cityCode><departmentCode>BE25 </departmentCode><districtCode></districtCode><regionCode>BE2</regionCode ></location><remunerationDescription>test</remunerationDescription><requiredQualifications >test</requiredQualifications><roulartaJobCode></roulartaJobCode><sector >1700</sector></jobDescriptions><logo><detail><language>nl</language ><name>job--nl</name><path> /2014/05/07/6e204c2badbb0cbce7b887b8f813f353/eee99b2a98dfda49aa7e98be97f311 0c.gif </path></detail><details><language>nl</language><name>job--nl</name ><path>/2014/05/07/6e204c2badbb0cbce7b887b8f813f353/eee99b2a98d

17:42:00.405895 IP we??????.??????.be.60083 > rmgdmzhaproxyip173.dmz.local.http: Flags [FP.], seq 9996:10320, ack 21378, win 454, options [nop,nop,TS val 1818030407 ecr 2095496264], length 324
E..xn.@.@.mm...R.......P...I..](....^......
l\.G|..Hfda49aa7e98be97f3110c.gif</path></details></logo><numberToFill>0 </numberToFill><ownerSite>JOBVLAN</ownerSite><packageProduct><packageCode ></packageCode><productCode></productCode></packageProduct><shielded>false </shielded><status>PENDING</status><version>6</version></arg2></ns1:saveJob ></SOAP-ENV:Body></SOAP-ENV:Envelope>

17:42:00.406120 IP rmgdmzhaproxyip173.dmz.local.http > we??????.??????.be.60083: Flags [R], seq 2711706920, win 0, length 0
E..(..@.@..........R.P....](....P...h.........
17:42:00.406135 IP rmgdmzhaproxyip173.dmz.local.http > we??????.??????.be.60083: Flags [R], seq 2711706920, win 0, length 0
E..(..@.@..........R.P....](....P...h.........
17:42:00.406179 IP rmgdmzhaproxyip173.dmz.local.http > we??????.??????.be.60083: Flags [R], seq 2711706920, win 0, length 0
E..(..@.@..........R.P....](....P...h.........




php-soap.x86_64 5.4.21-2.el6.remi @remi
Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185789 is a reply to message #185788] Fri, 09 May 2014 10:27 Go to previous messageGo to next message
Salvatore is currently offline  Salvatore
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On 2014-05-09, ghpille(at)gmail(dot)com <ghpille(at)gmail(dot)com> wrote:
> We have a problem with a specific soap request to one of our webservices,
> and my impression is that PHP is misbehaving on the TCP level. I'll show
> you a tcpdump of such session. Can anyone tell me what could be the
> reason for PHP to behave in this way, unless we've stumbled on a bug?
> [snip]

The PHP binary doesn't assemble TCP packets itself. I think it's a
problem with either the host machine's TCP stack or some firewall
between you and the SOAP server.

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Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185819 is a reply to message #185789] Sat, 10 May 2014 14:16 Go to previous messageGo to next message
ghpille is currently offline  ghpille
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Op vrijdag 9 mei 2014 16:27:22 UTC+2 schreef Salvatore:
> On 2014-05-09, ghp....@gmail.com <ghp....@gmail.com> wrote:
>
>> We have a problem with a specific soap request to one of our webservices,
>
>> and my impression is that PHP is misbehaving on the TCP level. I'll show
>
>> you a tcpdump of such session. Can anyone tell me what could be the
>
>> reason for PHP to behave in this way, unless we've stumbled on a bug?
>
>> [snip]
>
>
>
> The PHP binary doesn't assemble TCP packets itself. I think it's a
>
> problem with either the host machine's TCP stack or some firewall
>
> between you and the SOAP server.
>
>
>

There's nothing in between those two machines, but I'll doublecheck. I hope you're right, it gives me somewhere else to check for known bugs, I couldn't find any like this in connection with php-soap.
Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185820 is a reply to message #185819] Sat, 10 May 2014 16:14 Go to previous messageGo to next message
Jerry Stuckle is currently offline  Jerry Stuckle
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On 5/10/2014 2:16 PM, ghpille(at)gmail(dot)com wrote:
> Op vrijdag 9 mei 2014 16:27:22 UTC+2 schreef Salvatore:
>> On 2014-05-09, ghp....@gmail.com <ghp....@gmail.com> wrote:
>>
>>> We have a problem with a specific soap request to one of our webservices,
>>
>>> and my impression is that PHP is misbehaving on the TCP level. I'll show
>>
>>> you a tcpdump of such session. Can anyone tell me what could be the
>>
>>> reason for PHP to behave in this way, unless we've stumbled on a bug?
>>
>>> [snip]
>>
>>
>>
>> The PHP binary doesn't assemble TCP packets itself. I think it's a
>>
>> problem with either the host machine's TCP stack or some firewall
>>
>> between you and the SOAP server.
>>
>>
>>
>
> There's nothing in between those two machines, but I'll doublecheck. I hope you're right, it gives me somewhere else to check for known bugs, I couldn't find any like this in connection with php-soap.
>

There is a LOT between the client and the server scripts. PHP is only a
small part of it.

Salvatore is correct - PHP has nothing to do with the PHP packets
itself. And I would be willing to bet the problem is NOT in your TCP/IP
stack - such a problem wouldn't show up only on your machine with this
particular SOAP request.

My bet is you're assembling the SOAP requests incorrectly. Another
option would be your SOAP client isn't decoding them properly.

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Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185821 is a reply to message #185820] Sun, 11 May 2014 07:20 Go to previous messageGo to next message
ghpille is currently offline  ghpille
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>
> There is a LOT between the client and the server scripts. PHP is only a
>
> small part of it.
>
>
>
> Salvatore is correct - PHP has nothing to do with the PHP packets
>
> itself. And I would be willing to bet the problem is NOT in your TCP/IP
>
> stack - such a problem wouldn't show up only on your machine with this
>
> particular SOAP request.
>
>
>
> My bet is you're assembling the SOAP requests incorrectly. Another
>
> option would be your SOAP client isn't decoding them properly.
>
>
>
> --

The soap request is "assembled" by Symfony2, if I'm not mistaken.

Suppose something is wrong with the soap-envelope. How could that make TCP misbehave?

I ran tcpdump on the soap-client-machine. It is on that machine that the fin flag in the third packet was set.

I'll concentrate on the TCP stack. Where do I start? vmxnet3?
Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185822 is a reply to message #185788] Sun, 11 May 2014 07:28 Go to previous messageGo to next message
ghpille is currently offline  ghpille
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Op vrijdag 9 mei 2014 16:24:32 UTC+2 schreef ghp...@gmail.com:

Could vmxnet3 be involved? Or should I look further up (or down?) the stack?

# modinfo vmxnet3
filename: /lib/modules/2.6.32-358.2.1.el6.x86_64/kernel/drivers/net/vmxnet3/vmxnet3.k o
version: 1.1.29.0-k
license: GPL v2
description: VMware vmxnet3 virtual NIC driver
author: VMware, Inc.
srcversion: 300574F157A2E481CA33E17
alias: pci:v000015ADd000007B0sv*sd*bc*sc*i*
depends:
vermagic: 2.6.32-358.2.1.el6.x86_64 SMP mod_unload modversions
Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185826 is a reply to message #185821] Sun, 11 May 2014 08:22 Go to previous messageGo to next message
Jerry Stuckle is currently offline  Jerry Stuckle
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On 5/11/2014 7:20 AM, ghpille(at)gmail(dot)com wrote:
>
>>
>> There is a LOT between the client and the server scripts. PHP is only a
>>
>> small part of it.
>>
>>
>>
>> Salvatore is correct - PHP has nothing to do with the PHP packets
>>
>> itself. And I would be willing to bet the problem is NOT in your TCP/IP
>>
>> stack - such a problem wouldn't show up only on your machine with this
>>
>> particular SOAP request.
>>
>>
>>
>> My bet is you're assembling the SOAP requests incorrectly. Another
>>
>> option would be your SOAP client isn't decoding them properly.
>>
>>
>>
>> --
>
> The soap request is "assembled" by Symfony2, if I'm not mistaken.
>
> Suppose something is wrong with the soap-envelope. How could that make TCP misbehave?
>
> I ran tcpdump on the soap-client-machine. It is on that machine that the fin flag in the third packet was set.
>
> I'll concentrate on the TCP stack. Where do I start? vmxnet3?
>

Start by debugging your problem and determining the failing component.
PHP has NOTHING to do with the format of a TCP/IP packet.

Once you've determined the failing component, ask in a forum or
newsgroup appropriate to the failure.

If you are unable to do that, I would suggest hiring a consultant to
assist you (and no, I am not available).

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Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185827 is a reply to message #185822] Sun, 11 May 2014 08:23 Go to previous messageGo to next message
Jerry Stuckle is currently offline  Jerry Stuckle
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On 5/11/2014 7:28 AM, ghpille(at)gmail(dot)com wrote:
> Op vrijdag 9 mei 2014 16:24:32 UTC+2 schreef ghp...@gmail.com:
>
> Could vmxnet3 be involved? Or should I look further up (or down?) the stack?
>
> # modinfo vmxnet3
> filename: /lib/modules/2.6.32-358.2.1.el6.x86_64/kernel/drivers/net/vmxnet3/vmxnet3.k o
> version: 1.1.29.0-k
> license: GPL v2
> description: VMware vmxnet3 virtual NIC driver
> author: VMware, Inc.
> srcversion: 300574F157A2E481CA33E17
> alias: pci:v000015ADd000007B0sv*sd*bc*sc*i*
> depends:
> vermagic: 2.6.32-358.2.1.el6.x86_64 SMP mod_unload modversions
>

Ask in an appropriate place. This is a PHP group (hence the "PHP" in
its name).

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Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185837 is a reply to message #185826] Mon, 12 May 2014 02:48 Go to previous messageGo to next message
ghpille is currently offline  ghpille
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Op zondag 11 mei 2014 14:22:47 UTC+2 schreef Jerry Stuckle:
>
>
>
> If you are unable to do that, I would suggest hiring a consultant to
>
> assist you (and no, I am not available).
>

Why on earth would one hire a consultant while one can get such valuable advice as yours for free in the newsgroups?
Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185841 is a reply to message #185837] Mon, 12 May 2014 08:10 Go to previous messageGo to next message
Jerry Stuckle is currently offline  Jerry Stuckle
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On 5/12/2014 2:48 AM, ghpille(at)gmail(dot)com wrote:
> Op zondag 11 mei 2014 14:22:47 UTC+2 schreef Jerry Stuckle:
>>
>>
>>
>> If you are unable to do that, I would suggest hiring a consultant to
>>
>> assist you (and no, I am not available).
>>
>
> Why on earth would one hire a consultant while one can get such valuable advice as yours for free in the newsgroups?
>

So you have someone who knows what they're doing. You obviously have no
clue.

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Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185906 is a reply to message #185788] Wed, 14 May 2014 05:27 Go to previous messageGo to next message
ghpille is currently offline  ghpille
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Op vrijdag 9 mei 2014 16:24:32 UTC+2 schreef ghp...@gmail.com:
> We have a problem with a specific soap request to one of our webservices, and my impression is that PHP is misbehaving on the TCP level. I'll show you a tcpdump of such session. Can anyone tell me what could be the reason for PHP to behave in this way, unless we've stumbled on a bug?
>
>
>
> Mark the FIN flag in the third packet, to which our HAProxy server reacts with three ReSeTs. The post never reaches the destination, which is understandable.


It turns out that the SoapClient is sending data on a half-closed connection. The server had earlier sent a FIN packet, that had been ACKnowledged by the client.

Now, from a TCP point of view, it is permissible to send data with of before your own FINish.

But POSTing something to which you're expecting a reply, on a half-closed connection?
Re: PHP-SOAP/5.4.21 SoapClient terminating POST without waiting for reply, but still complaining "error fetching http headers". [message #185984 is a reply to message #185788] Mon, 19 May 2014 15:58 Go to previous message
ghpille is currently offline  ghpille
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It turned out to be a bug in PHP, which I managed to patch (that is, if the patch is accepted).

https://bugs.php.net/bug.php?id=67292
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