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moby--moby/daemon
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Vivek Goyal ad0298c5a1 devmapper: Switch to xfs as default filesystem if supported 
If platform supports xfs filesystem then use xfs as default filesystem
for container rootfs instead of ext4. Reason being that ext4 is pre-allcating
lot of metadata (around 1.8GB on 100G thin volume) and that can take long
enough on AWS storage that systemd times out and docker fails to start.

If one disables pre-allocation of ext4 metadata, then it will be allocated
when containers are mounted and we will have multiple copies of metadata
per container. For a 100G thin device, it was around 1.5GB of metadata
per container.

ext4 has an optimization to skip zeroing if discards are issued and
underlying device guarantees that zero will be returned when discarded
blocks are read back. devicemapper thin devices don't offer that guarantee
so ext4 optimization does not kick in. In fact given discards are optional
and can be dropped on the floor if need be, it looks like it might not be
possible to guarantee that all the blocks got discarded and if read back
zero will be returned.

Signed-off-by: Anusha Ragunathan <anusha@docker.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
(cherry picked from commit 07ff17fb85)
2015-11-12 15:13:00 -05:00
..
daemonbuilder Fix symlink handling in builder ADD/COPY commands 2015-11-09 18:36:29 -05:00
events Resolves #16458 - filter events by labels. 2015-10-02 16:33:20 -04:00
execdriver daemon: execdriver: lxc: fix cgroup paths 2015-10-22 15:06:58 -04:00
graphdriver devmapper: Switch to xfs as default filesystem if supported 2015-11-12 15:13:00 -05:00
links Cleanup links top level pkg 2015-07-29 23:39:18 +02:00
logger add labels/env log option for jsonfile 2015-10-12 21:12:46 +02:00
network Modify IPAMConfig structure json tags 2015-10-30 21:18:08 -04:00
archive.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
archive_unix.go Windows: Factoring out unused fields 2015-07-27 17:44:18 -07:00
archive_windows.go Windows: Factoring out unused fields 2015-07-27 17:44:18 -07:00
attach.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
changes.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
commit.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
config.go Enhancing --cluster-advertise to support <interface-name> 2015-10-27 19:57:03 -04:00
config_experimental.go Add user namespace enable flag --userns-remap in experimental build 2015-10-09 20:50:05 -04:00
config_stub.go Add user namespace enable flag --userns-remap in experimental build 2015-10-09 20:50:05 -04:00
config_unix.go Add user namespace (mapping) support to the Docker engine 2015-10-09 17:47:37 -04:00
config_windows.go Change all docker -d to docker daemon 2015-08-10 20:48:08 +08:00
container.go Use an empty slice as default value for DNS, DNSSearch and DNSOptions 2015-11-09 19:06:59 -05:00
container_unit_test.go Use an empty slice as default value for DNS, DNSSearch and DNSOptions 2015-11-09 19:06:59 -05:00
container_unix.go Test to verify --mac-address doesn't get applied to new endpoint 2015-11-12 15:12:59 -05:00
container_windows.go Turn IPC unmount errors into warnings. 2015-11-09 18:36:26 -05:00
create.go volume create error on conflict option 2015-10-12 11:16:39 +08:00
create_unix.go Do not parse config.Volumes for named volumes 2015-09-29 10:01:57 -04:00
create_windows.go Move VolumeDriver to HostConfig to make containers portable. 2015-09-04 12:42:44 -04:00
daemon.go Turn IPC unmount errors into warnings. 2015-11-09 18:36:26 -05:00
daemon_aufs.go Move graph.SetupInitLayer to daemon package where it is used 2015-06-16 16:50:56 -07:00
daemon_btrfs.go golint fixes for daemon/ package 2015-08-27 22:07:42 -07:00
daemon_devicemapper.go golint fixes for daemon/ package 2015-08-27 22:07:42 -07:00
daemon_experimental.go Add user namespace enable flag --userns-remap in experimental build 2015-10-09 20:50:05 -04:00
daemon_linux.go Force IPC mount to unmount on daemon shutdown/init 2015-11-09 18:36:26 -05:00
daemon_linux_test.go Do not try to cleanupMounts if daemon.repository is empty 2015-09-29 11:30:18 +08:00
daemon_no_aufs.go make docker compile on freebsd 2015-07-29 21:25:56 +03:00
daemon_overlay.go golint fixes for daemon/ package 2015-08-27 22:07:42 -07:00
daemon_stub.go Add user namespace enable flag --userns-remap in experimental build 2015-10-09 20:50:05 -04:00
daemon_test.go Use an empty slice as default value for DNS, DNSSearch and DNSOptions 2015-11-09 19:06:59 -05:00
daemon_unix.go Restore IPv6 from MAC on default bridge network 2015-11-12 15:12:59 -05:00
daemon_unix_test.go Cleanup: Merge adjustCPUShares to adoptContainerSettings 2015-08-06 08:15:14 +08:00
daemon_unsupported.go Add platformSupported flag to enable daemon mode by platform. 2015-08-07 09:45:24 -07:00
daemon_windows.go Add user namespace (mapping) support to the Docker engine 2015-10-09 17:47:37 -04:00
daemon_zfs.go golint fixes for daemon/ package 2015-08-27 22:07:42 -07:00
debugtrap_unix.go Windows: Win32 event for sigusr1 linux equivalence 2015-07-06 18:58:53 -07:00
debugtrap_unsupported.go Windows: Win32 event for sigusr1 linux equivalence 2015-07-06 18:58:53 -07:00
debugtrap_windows.go Windows: Win32 event for sigusr1 linux equivalence 2015-07-06 18:58:53 -07:00
delete.go Do not fail when a container is being removed and we request its delete again. 2015-10-22 16:14:13 -04:00
delete_test.go Do not fail when a container is being removed and we request its delete again. 2015-10-22 16:14:13 -04:00
discovery.go Add TLS support for discovery backend 2015-10-07 16:01:00 -07:00
exec.go Merge pull request #16803 from tiborvass/pkg-broadcaster 2015-10-08 13:51:08 -07:00
exec_freebsd.go make docker compile on freebsd 2015-07-29 21:25:56 +03:00
exec_linux.go Windows: Split ContainerExecCreate 2015-05-06 16:19:27 -07:00
exec_windows.go Windows: Split ContainerExecCreate 2015-05-06 16:19:27 -07:00
export.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
history.go golint fixes for daemon/ package 2015-08-27 22:07:42 -07:00
image_delete.go Fix rmi -f removing multiple tags 2015-10-30 21:18:06 -04:00
info.go Enhancing --cluster-advertise to support <interface-name> 2015-10-27 19:57:03 -04:00
inspect.go Fix network inspect for default networks. 2015-10-30 21:18:07 -04:00
inspect_unix.go Fix network inspect for default networks. 2015-10-30 21:18:07 -04:00
inspect_windows.go add size to inspect 2015-10-10 20:44:29 +08:00
kill.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
list.go Speedup container list 2015-11-10 12:37:39 -05:00
logdrivers_linux.go Add awslogs driver for Amazon CloudWatch Logs 2015-09-09 13:52:40 -07:00
logdrivers_windows.go Add awslogs driver for Amazon CloudWatch Logs 2015-09-09 13:52:40 -07:00
logs.go refactor logs to not use internal data structures 2015-10-07 15:44:16 -07:00
monitor.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
network.go Do not mask ipam driver if no ip config is passed 2015-10-22 15:07:06 -04:00
pause.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
README.md Docs: remove networkdriver from README.md in daemon 2015-08-22 10:09:07 +08:00
rename.go Add libnetwork call on daemon rename 2015-10-27 19:57:02 -04:00
resize.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
restart.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
start.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
state.go Move setRunningLocking to test code 2015-09-28 13:48:12 -07:00
state_test.go Move setRunningLocking to test code 2015-09-28 13:48:12 -07:00
stats.go Make the stats collector to collect network stats. 2015-11-09 18:36:27 -05:00
stats_collector_unix.go Make the stats collector to collect network stats. 2015-11-09 18:36:27 -05:00
stats_collector_windows.go Windows: Factor out stat collector 2015-06-01 09:11:03 -07:00
stats_freebsd.go Refactor the statistics of network in docker stats 2015-09-15 15:40:34 +08:00
stats_linux.go Refactor the statistics of network in docker stats 2015-09-15 15:40:34 +08:00
stats_windows.go Refactor the statistics of network in docker stats 2015-09-15 15:40:34 +08:00
stop.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
top_unix.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
top_windows.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
unpause.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
utils_freebsd.go make docker compile on freebsd 2015-07-29 21:25:56 +03:00
utils_linux.go make docker compile on freebsd 2015-07-29 21:25:56 +03:00
utils_nounix.go Windows: Tidy up daemon\utils*.go 2015-07-09 18:47:32 -07:00
utils_test.go Windows: Tidy up daemon\utils*.go 2015-07-09 18:47:32 -07:00
volumes.go Move volume ref counting store to a package. 2015-09-21 12:46:49 -04:00
volumes_linux_unit_test.go Move volume name validation to the local driver. 2015-10-22 16:14:11 -04:00
volumes_unit_test.go Merge pull request #15846 from ZJU-SEL/11646-fix-path-validations 2015-09-03 20:42:37 -04:00
volumes_unix.go Fix relabel for SELinux 2015-11-09 18:36:30 -05:00
volumes_windows.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00
wait.go Revert "Merge pull request #16228 from duglin/ContextualizeEvents" 2015-09-29 14:26:51 -04:00

README.md

This directory contains code pertaining to running containers and storing images

Code pertaining to running containers:

  • execdriver

Code pertaining to storing images:

  • graphdriver