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1413 Commits

Author SHA1 Message Date
Michael Schurter 79df90acb0
Merge pull request #3958 from simplesurance/swappiness 
fix: disable swap for executor_linux allocations
 2018-03-13 10:10:22 -07:00
Fabian Holler e6af051c93 fix: disable swap for executor_linux allocations 
A comment in the nomad source code states that swapping for
executor_linux allocations is disabled but it wasn't.

Nomad wrote -1 to the memsw.limit_in_bytes cgroup file to disable
swapping.
This has the following problems:

1.) Writing -1 to the file does not disable swapping. It sets
    the limit for memory and swap to unlimited.
2.) On common Linux distributions like Ubuntu 16.04 LTS the
    memsw.limit_in_bytes cgroup file does not exist by default.
    The memsw.limit_in_bytes file only exist if the Linux kernel is
    build with CONFIG_MEMCG_SWAP=yes and either
    CONFIG_MEMCG_SWAP_ENABLED=yes or when the kernel parameter
    swapaccount=1 is passed during boot.
    Most Linux distributions disable swap accounting by default because
    of higher memory usage.
    Nomad silently ignores if writing to the memsw.limit_in_bytes file
    fails. The allocation succeeds, no message is logged to notify the
    user.

To ensure that disabling swap works on common Linux kernels, disable
swapping by writing 0 to the memory.swappiness file.
Using the memory.swappiness file only requires that the kernel is
compiled with CONFIG_MEMCG=yes. This is the default in common Linux
kernels.
 2018-03-13 10:52:50 +01:00
Michael Schurter 7dd7fbcda2 non-Existent -> nonexistent 
Reverting from #3963

https://www.merriam-webster.com/dictionary/existent
 2018-03-12 11:59:33 -07:00
Josh Soref 1359fd2c3d spelling: unexpected 2018-03-11 19:08:07 +00:00
Josh Soref 8978caea28 spelling: shutdown 2018-03-11 18:55:49 +00:00
Josh Soref 8d191c9273 spelling: severity 2018-03-11 18:53:52 +00:00
Josh Soref 3787d8141e spelling: serialize 2018-03-11 18:53:39 +00:00
Josh Soref e4639ac62f spelling: secrets 2018-03-11 18:53:26 +00:00
Josh Soref cec45c6bc8 spelling: safety 2018-03-11 18:52:54 +00:00
Josh Soref de9d0c7180 spelling: retrieved 2018-03-11 18:51:40 +00:00
Josh Soref e949d23e1b spelling: resource 2018-03-11 18:51:03 +00:00
Josh Soref b47ab9ab8c spelling: removes 2018-03-11 18:41:43 +00:00
Josh Soref db166c6cf6 spelling: remnants 2018-03-11 18:41:26 +00:00
Josh Soref b6ec60fb5f spelling: isolation 2018-03-11 18:19:02 +00:00
Josh Soref c1a0ae3161 spelling: inspect 2018-03-11 18:15:27 +00:00
Josh Soref 2a1cf2f216 spelling: initialization 2018-03-11 18:18:37 +00:00
Josh Soref 7f6e4012a0 spelling: existent 2018-03-11 18:30:37 +00:00
Josh Soref 7cd95f6eb3 spelling: executor 2018-03-11 18:05:31 +00:00
Josh Soref e8478c4065 spelling: documentation 2018-03-11 17:55:21 +00:00
Josh Soref 4241ffc5ab spelling: disable 2018-03-11 17:55:12 +00:00
Josh Soref 2f135f0ed7 spelling: destroy 2018-03-11 17:54:13 +00:00
Josh Soref f2a7c95379 spelling: constraints 2018-03-11 17:50:28 +00:00
Josh Soref cb1303e47a spelling: conjunction 2018-03-11 17:48:37 +00:00
Josh Soref 42fa13bbc6 spelling: cancelled 2018-03-11 17:45:47 +00:00
Josh Soref 7077386916 spelling: cancelable 2018-03-11 17:45:34 +00:00
Josh Soref a70fe97556 spelling: assert 2018-03-11 17:41:33 +00:00
Michael Schurter 557a70f78d
Merge pull request #3917 from jaininshah9/master 
changing the formula to correctly pass the CPUQota to docker
 2018-02-28 20:00:37 -08:00
Jainin Shah 39e1fc06e5 adding comments to the change 2018-02-28 16:19:51 -08:00
Preetha Appan eaedffc7f7
Fix go vet errors 2018-02-28 12:21:27 -06:00
Jainin Shah 6eb7da002f changing the formula to correctly pass the CPUQota to docker 2018-02-27 12:32:23 -08:00
Alex Dadgar f9cf642436 Client tls 2018-02-15 15:22:57 -08:00
Alex Dadgar 69def2ff22 Server tests of logs 2018-02-15 13:59:02 -08:00
Chelsea Komlo 0c0b56a1a4
Merge pull request #3807 from hashicorp/f-client-add-fingerprint-manager 
Add fingerprint manager to manage fingerprinting node
 2018-02-13 11:22:50 -05:00
Chelsea Holland Komlo b321287712 extract test helper 
lock concurrent accesses to node

comment exported method
 2018-02-12 18:30:10 -05:00
Michael Schurter 101e85f078
Merge pull request #3819 from schmichael/qemu-graceful-shutdown-alpine 
Test QEMU graceful shutdown
 2018-02-12 12:32:14 -08:00
Michael Schurter ed6bce2ccf Improve test logging 2018-02-12 11:25:52 -08:00
Michael Schurter 06397ba59d
Merge pull request #3825 from jaininshah9/master 
add a flag for cpu_hard_limit
 2018-02-08 20:40:38 -08:00
Michael Schurter 6e6915e7f5 Merge branch 'master' into f-cpu_hard_limit 2018-02-08 20:14:29 -08:00
Alan Scherger eee7144643 drivers: use ctx.TaskEnv for mount points 2018-02-08 12:59:20 -06:00
Jainin Shah a4516aa71a removing underscore in variable name 2018-02-07 16:28:43 -08:00
Jainin Shah 8149587abe clearing the confusion between microsecond,nanosecond and millisecond 2018-02-06 19:11:39 -08:00
Jainin Shah d3087d6069 using d.node.Resources.CPU as suggested 2018-02-06 14:52:15 -08:00
Michael Schurter 279a3b3f28
Merge pull request #3790 from 42wim/dockerv6 
Service registration for IPv6 docker addresses (Fixes #3785)
 2018-02-05 17:07:53 -08:00
Michael Schurter 25f0ad050f docker: Skip IPv6 test if IPv6 disabled 2018-02-05 16:24:30 -08:00
Chelsea Komlo 42d20234a3
Merge pull request #3781 from hashicorp/f-client-fingerprint-refactor 
Refactor client fingerprinters to return a diff of node attributes
 2018-02-01 20:13:44 -05:00
Chelsea Holland Komlo 6f9c0ab361 req/resp should be within config locks; rename for detected fingerprints 
changelog
 2018-02-01 19:00:39 -05:00
Wim a1a2ca8e33 Add AdvertiseIPv6Address test 2018-02-01 23:21:47 +01:00
Jainin Shah 94d0ce6006 wrapping the line to less than 80 characters 2018-02-01 14:16:38 -08:00
Jainin Shah 0d99f256de changes after running go fmt 2018-02-01 12:07:05 -08:00
Jainin Shah 04c14b3cb2 add a flag for cpu_hard_limit 2018-02-01 10:09:12 -08:00