Public bug reported: It seem like since the introduction of the Ubuntu AWS Rolling Kernel https://ubuntu.com/blog/introducing-the-ubuntu-aws-rolling-kernel-2 git clone over SSH increased from roughly 20-30 seconds to 8+ mins. I don't think it's the kernel itself but rather a package that gets automatically updated by unattended-upgrades some time after boot. I have provided a log below including the packages that were to be upgraded after a successful clone by unattended-upgrades and prior to one that was taking minutes.
user@ip-10-x-x-x:~/test$ GIT_TRACE=1 git clone -v -- [email protected]:redacted/app.git . 06:13:45.287333 git.c:344 trace: built-in: git clone -v -- [email protected]:redacted/app.git . Cloning into '.'... ... Receiving objects: 100% (68113/68113), 126.39 MiB | 6.88 MiB/s, done. Resolving deltas: 100% (33851/33851), done. 06:14:24.283201 run-command.c:646 trace: run_command: git rev-list --objects --stdin --not --all --quiet '--progress=Checking connectivity' 06:14:24.285584 git.c:344 trace: built-in: git rev-list --objects --stdin --not --all --quiet '--progress=Checking connectivity' user@ip-10-x-x-x:~/test$ uname -r 5.3.0-1017-aws user@ip-10-x-x-x:~/test$ apt list --upgradable Listing... Done bind9-host/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] dnsutils/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] kmod/bionic-updates 24-1ubuntu3.4 amd64 [upgradable from: 24-1ubuntu3.3] libbind9-160/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] libdevmapper1.02.1/bionic-updates 2:1.02.145-4.1ubuntu3.18.04.3 amd64 [upgradable from: 2:1.02.145-4.1ubuntu3.18.04.2] libdns1100/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] libirs160/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] libisc169/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] libisccc160/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] libisccfg160/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] libkmod2/bionic-updates 24-1ubuntu3.4 amd64 [upgradable from: 24-1ubuntu3.3] liblvm2cmd2.02/bionic-updates 2.02.176-4.1ubuntu3.18.04.3 amd64 [upgradable from: 2.02.176-4.1ubuntu3.18.04.2] liblwres160/bionic-updates,bionic-security 1:9.11.3+dfsg-1ubuntu1.12 amd64 [upgradable from: 1:9.11.3+dfsg-1ubuntu1.11] linux-aws/bionic-updates,bionic-security 5.3.0.1019.20 amd64 [upgradable from: 5.3.0.1017.18] linux-headers-aws/bionic-updates,bionic-security 5.3.0.1019.20 amd64 [upgradable from: 5.3.0.1017.18] linux-image-aws/bionic-updates,bionic-security 5.3.0.1019.20 amd64 [upgradable from: 5.3.0.1017.18] linux-libc-dev/bionic-updates,bionic-security 4.15.0-101.102 amd64 [upgradable from: 4.15.0-99.100] lvm2/bionic-updates 2.02.176-4.1ubuntu3.18.04.3 amd64 [upgradable from: 2.02.176-4.1ubuntu3.18.04.2] tzdata/bionic-updates,bionic-security 2020a-0ubuntu0.18.04 all [upgradable from: 2019c-0ubuntu0.18.04] user@ip-10-x-x-x:~/test$ GIT_TRACE=1 time git clone -v -- [email protected]:redacted/app.git /tmp/app 07:03:41.644490 git.c:344 trace: built-in: git clone -v -- [email protected]:redacted/app.git /tmp/app Cloning into '/tmp/app'... ... remote: Total 68113 (delta 33850), reused 66160 (delta 32014) Receiving objects: 100% (68113/68113), 126.39 MiB | 268.00 KiB/s, done. Resolving deltas: 100% (33850/33850), done. 07:11:51.899637 run-command.c:646 trace: run_command: git rev-list --objects --stdin --not --all --quiet '--progress=Checking connectivity' 07:11:51.901531 git.c:344 trace: built-in: git rev-list --objects --stdin --not --all --quiet '--progress=Checking connectivity' real 8m10.365s user 0m5.643s sys 0m1.985s user@ip-10-x-x-x:~/test$ ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-5.3.0-1017-aws 5.3.0-1017.18~18.04.1 ProcVersionSignature: Ubuntu 5.3.0-1017.18~18.04.1-aws 5.3.18 Uname: Linux 5.3.0-1017-aws x86_64 ApportVersion: 2.20.9-0ubuntu7.14 Architecture: amd64 Date: Thu May 21 06:56:10 2020 Ec2AMI: ami-0d1a47dc995459339 Ec2AMIManifest: (unknown) Ec2AvailabilityZone: ap-southeast-2b Ec2InstanceType: t3.small Ec2Kernel: unavailable Ec2Ramdisk: unavailable ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: linux-aws-5.3 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-aws-5.3 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bionic ec2-images -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879888 Title: Git Clone Over SSH Increases from 20secs to 8mins To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-aws-5.3/+bug/1879888/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
