Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-05-05 Thread Qian Zhang 


> On May 4, 2018, 4:53 p.m., Qian Zhang wrote:
> > Thanks for the patch!
> > 
> > The `doXxx()` functions seem a bit strange to me. I am wondering if we can 
> > follow the similar way of how Mesos containerizer calls isolators, e.g., we 
> > could rename `Subsystem` to `SubsystemProcess` and all the `XxxSubsystem` 
> > to `XxxSubsystemProcess` since they are all actually `Process`, and then 
> > introduce a new class `Subsystem` which internally dispatches calls to 
> > `SubsystemProcess`, and `CgroupsIsolatorProcess` always directly calls the 
> > functions of `Subsystem`.
> 
> Benjamin Bannier wrote:
> Like outlined in the ticket, that would be the other possibility. Note 
> that we not only require dedicated subsystem processes, but also wrappers 
> derived from `Subsystem` for each one (we could use a template here to remove 
> duplicating classes). This could still lead to a lot of duplication in terms 
> of e.g., functions to implement. I got the feeling that the change here was 
> less invasive. Let me know if you think the code is too strange and I can 
> reiterate.
> 
> Gilbert Song wrote:
> Duplications are tolerable. Let's follow Qian's advice if possible.

> Note that we not only require dedicated subsystem processes, but also 
> wrappers derived from Subsystem for each one.

Mind to elaborate a bit on why we need wrappers derived from `Subsystem` class 
for each one? I think we only need a `Subsystem` class but create multiple 
objects of it (one for each subsystem), and `Subsystem` should have a member 
variable `process`, and member functions of `Subsystem` just dispatch calls to 
the related functions of `process`.


- Qian


---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review202424
---


On April 16, 2018, 11:03 p.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 11:03 p.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-05-04 Thread Gilbert Song 


> On May 4, 2018, 1:53 a.m., Qian Zhang wrote:
> > Thanks for the patch!
> > 
> > The `doXxx()` functions seem a bit strange to me. I am wondering if we can 
> > follow the similar way of how Mesos containerizer calls isolators, e.g., we 
> > could rename `Subsystem` to `SubsystemProcess` and all the `XxxSubsystem` 
> > to `XxxSubsystemProcess` since they are all actually `Process`, and then 
> > introduce a new class `Subsystem` which internally dispatches calls to 
> > `SubsystemProcess`, and `CgroupsIsolatorProcess` always directly calls the 
> > functions of `Subsystem`.
> 
> Benjamin Bannier wrote:
> Like outlined in the ticket, that would be the other possibility. Note 
> that we not only require dedicated subsystem processes, but also wrappers 
> derived from `Subsystem` for each one (we could use a template here to remove 
> duplicating classes). This could still lead to a lot of duplication in terms 
> of e.g., functions to implement. I got the feeling that the change here was 
> less invasive. Let me know if you think the code is too strange and I can 
> reiterate.

Duplications are tolerable. Let's follow Qian's advice if possible.


- Gilbert


---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review202424
---


On April 16, 2018, 8:03 a.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 8:03 a.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/2/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-05-04 Thread Mesos Reviewbot 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review202447
---



Patch looks great!

Reviews applied: [66634, 66635]

Passed command: export OS='ubuntu:14.04' BUILDTOOL='autotools' COMPILER='gcc' 
CONFIGURATION='--verbose --disable-libtool-wrappers' ENVIRONMENT='GLOG_v=1 
MESOS_VERBOSE=1'; ./support/docker-build.sh

- Mesos Reviewbot


On April 16, 2018, 3:03 p.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 3:03 p.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/2/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-05-04 Thread Benjamin Bannier 


> On May 4, 2018, 10:53 a.m., Qian Zhang wrote:
> > Thanks for the patch!
> > 
> > The `doXxx()` functions seem a bit strange to me. I am wondering if we can 
> > follow the similar way of how Mesos containerizer calls isolators, e.g., we 
> > could rename `Subsystem` to `SubsystemProcess` and all the `XxxSubsystem` 
> > to `XxxSubsystemProcess` since they are all actually `Process`, and then 
> > introduce a new class `Subsystem` which internally dispatches calls to 
> > `SubsystemProcess`, and `CgroupsIsolatorProcess` always directly calls the 
> > functions of `Subsystem`.

Like outlined in the ticket, that would be the other possibility. Note that we 
not only require dedicated subsystem processes, but also wrappers derived from 
`Subsystem` for each one (we could use a template here to remove duplicating 
classes). This could still lead to a lot of duplication in terms of e.g., 
functions to implement. I got the feeling that the change here was less 
invasive. Let me know if you think the code is too strange and I can reiterate.


- Benjamin


---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review202424
---


On April 16, 2018, 5:03 p.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 5:03 p.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/2/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-05-04 Thread Qian Zhang 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review202424
---



Thanks for the patch!

The `doXxx()` functions seem a bit strange to me. I am wondering if we can 
follow the similar way of how Mesos containerizer calls isolators, e.g., we 
could rename `Subsystem` to `SubsystemProcess` and all the `XxxSubsystem` to 
`XxxSubsystemProcess` since they are all actually `Process`, and then introduce 
a new class `Subsystem` which internally dispatches calls to 
`SubsystemProcess`, and `CgroupsIsolatorProcess` always directly calls the 
functions of `Subsystem`.

- Qian Zhang


On April 16, 2018, 11:03 p.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 11:03 p.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/2/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-05-04 Thread Gilbert Song 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review202420
---


Ship it!




Ship It!

- Gilbert Song


On April 16, 2018, 8:03 a.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 8:03 a.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/2/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-04-17 Thread Mesos Reviewbot Windows 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review201309
---



PASS: Mesos patch 66635 was successfully built and tested.

Reviews applied: `['66634', '66635']`

All the build artifacts available at: 
http://dcos-win.westus.cloudapp.azure.com/mesos-build/review/66635

- Mesos Reviewbot Windows


On April 16, 2018, 3:03 p.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 3:03 p.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/2/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-04-17 Thread Mesos Reviewbot Windows 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review201302
---



FAIL: Failed to get dependent review IDs for the current patch.

Failed command: `python.exe 
C:\Jenkins\workspace\mesos-reviewbot-testing\Mesos\utils\get-review-ids.py -r 
66635 -o C:\Users\mesos\AppData\Local\Temp\mesos_dependent_review_ids`

All the build artifacts available at: 
http://dcos-win.westus.cloudapp.azure.com/mesos-build/review/66635

- Mesos Reviewbot Windows


On April 16, 2018, 3:03 p.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 3:03 p.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/2/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-04-16 Thread Mesos Reviewbot 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review201238
---



Patch looks great!

Reviews applied: [66634, 66635]

Passed command: export OS='ubuntu:14.04' BUILDTOOL='autotools' COMPILER='gcc' 
CONFIGURATION='--verbose --disable-libtool-wrappers' ENVIRONMENT='GLOG_v=1 
MESOS_VERBOSE=1'; ./support/docker-build.sh

- Mesos Reviewbot


On April 16, 2018, 8:03 a.m., Benjamin Bannier wrote:
> 
> ---
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/66635/
> ---
> 
> (Updated April 16, 2018, 8:03 a.m.)
> 
> 
> Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.
> 
> 
> Bugs: MESOS-8786
> https://issues.apache.org/jira/browse/MESOS-8786
> 
> 
> Repository: mesos
> 
> 
> Description
> ---
> 
> Access to cgroups subsystem-specific isolators is modelled with actors
> which e.g., dispatch to themself on asynchronous code paths. We
> previously allowed callers to directly invoke functions on these
> actors which could e.g., introduce races on instance-internal data.
> 
> In this patch we refactor the `Subsystem` base class to provide a safe
> interface. The abstract base class and its concrete, derived classes
> style are still libprocess processes, but we now use a template method
> pattern where the base class only provides a non-`virtual` `public`
> interface and all customization points are `protected`. With that we
> can inject the needed `dispatch` in the base class, rendering the
> class hierarchy safe to use in concurrent contexts.
> 
> 
> Diffs
> -
> 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
> 65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
> 9afa02b207e6272836e5a36d69fb48f1f4d02150 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
> ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
> cba21ede59916b0a6e120ecd2b6348b8a946c507 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
> 282a76189579d3ddd61f4aad210ce8e876ff0c25 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
> 75fab0f1fc7e7403855de0786b8c1155d7599b7f 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
> e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
> 3be419ad477e9baa329b5388d4c12fa743c7f563 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
> 4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
> 4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
> d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
> 50348d63f6fffa7662e6b91b5ce4ff730380e708 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
> bcaa16142c4e9882dea88e70095cfb7f223401ef 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
> f778a419e15940d92079d04884887615322791f5 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
> 14c0e79f045fb826d20e476772e017439977dded 
>   src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
> d394d793c6bc38e249530c54ddb868ecff7f7865 
> 
> 
> Diff: https://reviews.apache.org/r/66635/diff/1/
> 
> 
> Testing
> ---
> 
> `make check`
> 
> 
> Thanks,
> 
> Benjamin Bannier
> 
>

Re: Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-04-16 Thread Mesos Reviewbot Windows 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/#review201213
---



FAIL: Some of the unit tests failed. Please check the relevant logs.

Reviews applied: `['66634', '66635']`

Failed command: `Start-MesosCITesting`

All the build artifacts available at: 
http://dcos-win.westus.cloudapp.azure.com/mesos-build/review/66635

Relevant logs:

- 
[mesos-tests-cmake-stdout.log](http://dcos-win.westus.cloudapp.azure.com/mesos-build/review/66635/logs/mesos-tests-cmake-stdout.log):

```
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\mt_adaptor.c(496):
 warning C4244: '=': conversion from 'time_t' to 'int32_t', possible loss of 
data 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\zookeeper.vcxproj]
 [D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\winport.c(256):
 warning C4090: 'function': different 'const' qualifiers 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\zookeeper.vcxproj]
 [D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\winport.c(166):
 warning C4716: 'pthread_cond_broadcast': must return a value 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\zookeeper.vcxproj]
 [D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\winport.c(205):
 warning C4716: 'pthread_cond_wait': must return a value 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\zookeeper.vcxproj]
 [D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(124):
 warning C4996: 'fopen': This function or variable may be unsafe. Consider 
using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See 
online help for details. 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(128):
 warning C4267: 'initializing': conversion from 'size_t' to 'int', possible 
loss of data 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(279):
 warning C4267: 'function': conversion from 'size_t' to 'int', possible loss of 
data 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(301):
 warning C4267: 'initializing': conversion from 'size_t' to 'int', possible 
loss of data 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(368):
 warning C4267: 'function': conversion from 'size_t' to 'int', possible loss of 
data 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(372):
 warning C4267: 'function': conversion from 'size_t' to 'int', possible loss of 
data 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(512):
 warning C4267: 'function': conversion from 'size_t' to 'int', possible loss of 
data 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(543):
 warning C4996: 'strcpy': This function or variable may be unsafe. Consider 
using strcpy_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. 
See online help for details. 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(548):
 warning C4996: 'fopen': This function or variable may be unsafe. Consider 
using fopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See 
online help for details. 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8-build\cli.vcxproj] 
[D:\DCOS\mesos\3rdparty\zookeeper-3.4.8.vcxproj]
 
d:\dcos\mesos\3rdparty\zookeeper-3.4.8\src\zookeeper-3.4.8\src\c\src\cli.c(569):
 warning

Review Request 66635: Fixed potential races when interacting with cgroup subsystem isolators.

2018-04-16 Thread Benjamin Bannier 

---
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/66635/
---

Review request for mesos, Gilbert Song, haosdent huang, and Jie Yu.


Bugs: MESOS-8786
https://issues.apache.org/jira/browse/MESOS-8786


Repository: mesos


Description
---

Access to cgroups subsystem-specific isolators is modelled with actors
which e.g., dispatch to themself on asynchronous code paths. We
previously allowed callers to directly invoke functions on these
actors which could e.g., introduce races on instance-internal data.

In this patch we refactor the `Subsystem` base class to provide a safe
interface. The abstract base class and its concrete, derived classes
style are still libprocess processes, but we now use a template method
pattern where the base class only provides a non-`virtual` `public`
interface and all customization points are `protected`. With that we
can inject the needed `dispatch` in the base class, rendering the
class hierarchy safe to use in concurrent contexts.


Diffs
-

  src/slave/containerizer/mesos/isolators/cgroups/subsystem.hpp 
65c1e47a569f320b63b54e5f4fc1da374d02ee0d 
  src/slave/containerizer/mesos/isolators/cgroups/subsystem.cpp 
9afa02b207e6272836e5a36d69fb48f1f4d02150 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.hpp 
ebddf4e9812c7e1eecec99215dfa5fd8e4e6e361 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/blkio.cpp 
cba21ede59916b0a6e120ecd2b6348b8a946c507 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.hpp 
282a76189579d3ddd61f4aad210ce8e876ff0c25 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpu.cpp 
75fab0f1fc7e7403855de0786b8c1155d7599b7f 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.hpp 
e4977da476a04a708a2e9b9dcc5a2f85da5867f4 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/cpuacct.cpp 
3be419ad477e9baa329b5388d4c12fa743c7f563 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.hpp 
4ab224e3b55a9d2b37d5e9abe94c069d89cd6d80 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/devices.cpp 
4c43191251d7411d14ed8b11c79a64ff5d6ccd76 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.hpp 
d79fda3cf852e50e75dbeeeaeae50b1f471a55a4 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/memory.cpp 
50348d63f6fffa7662e6b91b5ce4ff730380e708 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.hpp 
bcaa16142c4e9882dea88e70095cfb7f223401ef 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/net_cls.cpp 
f778a419e15940d92079d04884887615322791f5 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.hpp 
14c0e79f045fb826d20e476772e017439977dded 
  src/slave/containerizer/mesos/isolators/cgroups/subsystems/perf_event.cpp 
d394d793c6bc38e249530c54ddb868ecff7f7865 


Diff: https://reviews.apache.org/r/66635/diff/1/


Testing
---

`make check`


Thanks,

Benjamin Bannier