From mike.gabriel@das-netzwerkteam.de Thu Sep 13 14:27:28 2018 Received: (at 1129) by bugs.x2go.org; 13 Sep 2018 12:27:29 +0000 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on ymir.das-netzwerkteam.de X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=BAYES_00,RDNS_NONE, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.1 Received: from localhost (localhost [127.0.0.1]) by ymir.das-netzwerkteam.de (Postfix) with ESMTP id D5B375DAEE for <1129@bugs.x2go.org>; Thu, 13 Sep 2018 14:27:27 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at ymir.das-netzwerkteam.de Received: from ymir.das-netzwerkteam.de ([127.0.0.1]) by localhost (ymir.das-netzwerkteam.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TsKBpbp0iG8O for <1129@bugs.x2go.org>; Thu, 13 Sep 2018 14:27:22 +0200 (CEST) Received: from fregna.das-netzwerkteam.de (unknown [IPv6:2a01:4f8:202:1381::1]) by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id BA3E75DA81 for <1129@bugs.x2go.org>; Thu, 13 Sep 2018 14:27:21 +0200 (CEST) Received: from grimnir.das-netzwerkteam.de (grimnir.das-netzwerkteam.de [148.251.201.105]) by fregna.das-netzwerkteam.de (Postfix) with ESMTPS id 9D94F604F6; Thu, 13 Sep 2018 12:27:21 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by grimnir.das-netzwerkteam.de (Postfix) with ESMTP id 93631C2711; Thu, 13 Sep 2018 14:27:21 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at grimnir.das-netzwerkteam.de Received: from grimnir.das-netzwerkteam.de ([127.0.0.1]) by localhost (grimnir.das-netzwerkteam.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eMdSreIgEGzl; Thu, 13 Sep 2018 14:27:16 +0200 (CEST) Received: from das-netzwerkteam.de (localhost [127.0.0.1]) by grimnir.das-netzwerkteam.de (Postfix) with ESMTPS id F27AFC2690; Thu, 13 Sep 2018 14:27:15 +0200 (CEST) Received: from bifrost.das-netzwerkteam.de (bifrost.das-netzwerkteam.de [178.62.101.154]) by mail.das-netzwerkteam.de (Horde Framework) with HTTPS; Thu, 13 Sep 2018 12:27:15 +0000 Date: Thu, 13 Sep 2018 12:27:15 +0000 Message-ID: <20180913122715.Horde.BYMw_KeaXSF6jGAoUKkBre5@mail.das-netzwerkteam.de> From: Mike Gabriel To: 1129@bugs.x2go.org Cc: Miguel Quero Subject: Re: x2gobroker-ssh big delay in session status recovery User-Agent: Horde Application Framework 5 Accept-Language: de,en Organization: DAS-NETZWERKTEAM X-Originating-IP: 178.62.101.154 X-Remote-Browser: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Content-Type: multipart/signed; boundary="=_0kSUhmj5L8YYuBGj6jRP6r5"; protocol="application/pgp-signature"; micalg=pgp-sha256 MIME-Version: 1.0 This message is in MIME format and has been PGP signed. --=_0kSUhmj5L8YYuBGj6jRP6r5 Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Dear Miguel, > Package: x2gobroker > Version: 0.0.3.1 > > When x2gobroker-ssh is used with system with not IPv6 configured,=20=20 >=20this generate very big delays in x2gobroker listsession task. > > Before some research, the problem become from x2gobroker.utils=20=20 >=20portscan function. > > This function propagates a delay in all agents call because it tests=20= =20 >=20first the IPV6 connection: > > /ip_proto =3D 0////try:////socket.getaddrinfo(addr, None,=20=20 >=20socket.AF_INET6)////ip_proto =3D 6////except=20=20 >=20socket.gaierror:////try:////socket.getaddrinfo(addr, None,=20=20 >=20socket.AF_INET)////ip_proto =3D 4////except socket.gaierror:////# we=20= =20 >=20can't find a valid address for this host, so returning a=20=20 >=20failure...////return False /This will be fixed testing IPv4 first or=20= =20 >=20more easily, setting a new option in config to select the ip protocol. > A while ago you reported the above issue. I tested this now. The portscan function in x2gobroker.utils is really fast when=20=20 detecting=20that a remote host is not IPv6 supportive. It basically is a=20= =20 fast=20DNS query. Is it so, that your client system has IPv4 disabled entirely (in the=20=20 kernel)?=20Or what exactly did you mean by "When x2gobroker-ssh is used=20= =20 with=20system with not IPv6 configured..."? I am willing to do more test, please provide more info. You possibly=20=20 also=20have found a fix meanwhile. If so, I'd be happy, if you could=20=20 share=20it. Thanks Mike --=20 DAS-NETZWERKTEAM mike=20gabriel, herweg 7, 24357 fleckeby mobile: +49 (1520) 1976 148 landline: +49 (4354) 8390 139 GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31 mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de --=_0kSUhmj5L8YYuBGj6jRP6r5 Content-Type: application/pgp-signature Content-Description: Digitale PGP-Signatur Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIzBAABCAAdFiEEm/uu6GwKpf+/IgeCmvRrMCV3GzEFAluaV6MACgkQmvRrMCV3 GzGieRAArKvnkiN2vPasZpo6kQVT8R5zdJWSe5j+fiF0DR7Anb2+9bXl3rdUNiNx 1nYBvgM3epkgiZyI3fcYoTyDhn+h7us8G950S82L3CJ05os8ZFd/62M0ynzNBSY+ lAzHrN72KdGKyH4Ilfda50LVZkf/ZjTSm6MFfmJe4nqbQ1qziZaUAh+qXkOb2k6K Ku56MYt+6H8c2VQz8bL7ZLXyTF55qS1hpdSxpccjeNCDoAnvykIMMV/YzeVtUCLz yG+6s2in+1EtJfubAg6+B6ZUdza7LwBlTy+/V6PeJ/CuXry6R7+VenOOO/bZTlGr NiuqC/h1gIJqbdhYfi0t0cMpdm4toXdMa0qxZH4/xQK+xI2Fo1QAB+OlXiM7o3m1 gbkQG8rY22/VcMxXOU4I6KljniKzuGZmiUi4DAIlRNxRJKvpOv3g/7E5l826DNM/ pay/FkbsdJNGYrgl5+jTWRrfe1Qi+qpkP/0XB5044YnT1XQFQJJ2LJ4/Z0/O7BgU HCirWNkhFerz4BQluh9Dr+CIRK626D1s7RzKk7TTDS4vsVOwypnUletyKtKjV/k4 D2xFueYWUjFKoVW5UhBYgSrYoVUFZk5O/hkPG2atMm7n3G65lFg1OKgb2x76YKka 6gI3W+7AgViGHg+E70kAM1a77EuTi0f5aSwfJyiGRVV+BCHdcjs= =zOhK -----END PGP SIGNATURE----- --=_0kSUhmj5L8YYuBGj6jRP6r5--