[Xen-API] Re: xcp 1.1 rc

Yesterday I installed an XCP 1.1 RC on two HP blades. When I logged intoday with Xen Center I got the 27 days left for the licenseexpiration. I thought it was fixed in the RC.


Alex

On Thu, 22 Sep 2011 23:06:42 -0400
 xen-api-request@xxxxxxxxxxxxxxxxxxx wrote:

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Today's Topics:

  1. Re: The method Pool.create_VLAN_from_PIF does not work
     (Jonathan Ludlam)
  2. Re: race condition during /etc/xensource/scripts/vif call
     (Jonathan Ludlam)
  3. Re: Java bindings for XCP-SDK (Jonathan Ludlam)
  4. Re: race condition during /etc/xensource/scripts/vif call
     (George Shuklin)


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Message: 1
Date: Thu, 22 Sep 2011 23:34:44 +0100
From: Jonathan Ludlam <Jonathan.Ludlam@xxxxxxxxxxxxx>
Subject: Re: [Xen-API] The method Pool.create_VLAN_from_PIF does not
        work
To: ????????? ????????? <wadic@xxxxxxxxxxxxx>
Cc: "xen-api@xxxxxxxxxxxxxxxxxxx" <xen-api@xxxxxxxxxxxxxxxxxxx>
Message-ID: <43B08DD7-C20A-429F-81E3-A8D24A76AEEA@xxxxxxxxxxxxx>
Content-Type: text/plain; charset="windows-1251"

Looks like you're using the uuids instead of the references? Few APIcalls take uuids, mostly they use the refs.


Jon

On 21 Sep 2011, at 13:20, ��������� ��������� wrote:

Hi!

I�m using XenAPI .NET library to create external interface onXenServer. Here is my code:


// creating session to hypervisor
hypervisor.Connect();

// creating new network
XenAPI.Network xnet = new XenAPI.Network();
xnet.name_description = this.Domain.Name;
xnet.name_label = "vlan" + vlan.ToString();

XenRef<XenAPI.Network> xnet1 =XenAPI.Network.create(hypervisor.session, xnet);


// get device for new vlan bridging

var eth = PIF.get_all_records(hypervisor.session).Values.Where(v =>v.VLAN == -1 && v.device == dev).FirstOrDefault();


// get created network object

var net = XenAPI.Network.get_record(hypervisor.session,xnet1.opaque_ref);


// create vlan interface

List<XenRef<PIF>> pifs =Pool.create_VLAN_from_PIF(hypervisor.session, eth.uuid, net.uuid,(long)vlan);


At this place I have an exception like this:
�Object has been deleted.PIF:a21c28df-d6e8-0980-075d-014bd9cd666e�

I have checked that the objects and eth net have the correct uuid.When I use xe command to create vlan interface with same values �xepool-vlan-create pif_uuid=� network_uuid=� vlan=�� - its works fine.

What�s wrong?

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Message: 2
Date: Fri, 23 Sep 2011 00:07:03 +0100
From: Jonathan Ludlam <Jonathan.Ludlam@xxxxxxxxxxxxx>
Subject: Re: [Xen-API] race condition during
        /etc/xensource/scripts/vif call
To: George Shuklin <shuklin@xxxxxxxxxxx>
Cc: "xen-api@xxxxxxxxxxxxxxxxxxx" <xen-api@xxxxxxxxxxxxxxxxxxx>
Message-ID: <B1B04DE6-FBED-49F4-A048-70D132E058A4@xxxxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"

Interesting - it might be that you're racing with xapi - it'swaiting for the hot plug key to be removed, which is what thexenstore-rm does. Have a look here:


https://github.com/xen-org/xen-api/blob/master/ocaml/xenops/device.ml#L752

(Note that this is more current than XCP 1.0 or 1.1, but the generalgist is the same)


Jon

On 22 Sep 2011, at 16:18, George Shuklin wrote:

Good day.

Found strange situation for VM with two or more interfaces: data

from /xapi for domain disappear before vif remove called secondtime.

Here little patch to vif script (against XCP 1.1 beta) to logXenStore

state:

--- vif.orig    2011-05-19 02:32:19.000000000 +0400
+++ vif 2011-09-22 19:11:10.000000000 +0400
@@ -227,6 +227,8 @@
        xenstore-rm "${HOTPLUG}/hotplug"
    fi
    logger -t scripts-vif "${dev} has been removed"
+    echo ====domid=$DOMID===== >>/var/log/vif-race.log
+    xenstore-ls /xapi >>/var/log/vif-race.log
    remove_from_bridge
    ;;
esac


To see 'strange' add to any vm two interfaces and reboot it.

In vif-race.log for second time vif call:
====domid=3=====
0 = ""
hotplug = ""
 vbd = ""
private = ""
 vbd = ""
  51712 = ""
   ref = "OpaqueRef:1a7992ae-a645-acc6-bf51-3a0202bdd4c7"
frontend = ""
 vbd = ""
3:

(no data for domid 3).

I'm not sure if this is a really serious bug, but I found my

antispoofing patch does not remove rules from OVS for multihomedVM'sdue lack of 'bridge' variable for VIF (I'm callingremove_restiction()

function in 'remove' case in vif script).

I got this bug in XCP 1.0 and XCP1.1 beta.



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------------------------------

Message: 3
Date: Fri, 23 Sep 2011 00:29:54 +0100
From: Jonathan Ludlam <Jonathan.Ludlam@xxxxxxxxxxxxx>
Subject: Re: [Xen-API] Java bindings for XCP-SDK
To: George Shuklin <george.shuklin@xxxxxxxxx>
Cc: "xen-api@xxxxxxxxxxxxxxxxxxx" <xen-api@xxxxxxxxxxxxxxxxxxx>
Message-ID: <6331B776-7F29-4FD4-B454-2CC71885D9D0@xxxxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"

There are some here - they're for XenServer, but should work fineagainst XCP.


http://community.citrix.com/cdn/xs/sdks/

Jon

On 22 Sep 2011, at 06:55, George Shuklin wrote:

Write your own?

I don't think than XenAPI bindings are very hard to create. XenAPIbased on XMLRPC, AFAIK java have plenty things for XML (and XML RPC,may be).


On 22.09.2011 09:40, medhavini buchade wrote:
Hello everyone,

I prefer to code in Java,but the Xen cloud platform SDK provided byXen does not support Java bindings. So using the SDK libraries is notan option for me. What should i do?


Thank you.


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Message: 4
Date: Fri, 23 Sep 2011 07:04:27 +0400
From: George Shuklin <george.shuklin@xxxxxxxxx>
Subject: Re: [Xen-API] race condition during
        /etc/xensource/scripts/vif call
To: xen-api@xxxxxxxxxxxxxxxxxxx
Message-ID: <4E7BF73B.4050302@xxxxxxxxx>
Content-Type: text/plain; charset=UTF-8; format=flowed

Ok, may be I was wrong and shall not use any /xapi keys on interfaceremove. Right now I switched from xapi usage to '$vsctl port-to-br'.Butany way, this is kinda strange - why /xapi entery dissapear beforeinterface completely shutdown?


On 23.09.2011 03:07, Jonathan Ludlam wrote: