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grpc: AsyncTaskExecutor and basic server lifecycle #11984

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grpc: AsyncTaskExecutor and basic server lifecycle #11984

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@vishesh vishesh commented Feb 28, 2025 •
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This PR has three changes:

  • gRPC Lifecycle: Adds methods that can be used by worker to register/unregister services. The gRPC wrapper will automatically shutdown/restart services accordingly. Later PR will use these methods to tie life of gRPC service to the life of the worker role.
  • AsyncTaskExeuctor: Just a wrapper around IThreadPool that is easier to use, somewhat like asio::post or std::async. There is AsyncTaskThread in fdbclient which serves similar purpose, however it doesn't use IThreadPool hence doesn't set the simulation thread_locals correcly, and also just uses one thread. That should be equivalent of setting num_thread = 1 in this class.
  • Update existing GrpcServer and AsyncGrpcClient to use the AsyncTaskExeuctor instead of asio::thread_pool.

Testing:

Some correctness issues around RockDB. Debugging, but some were unrelated to this. e.g. #11981

Has some basic unit-tests and will keep adding more in subsequent PRs where I'm actually making use of these.

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@vishesh
AsyncTaskExecutor: lightweight wrapper for IThreadPool
ebf2bca 
This patch implements `AsyncTaskExecutor` for asynchronous execution of tasks in a separate thread
pool. We already have `IThreadPool` however its API is more well suited for bigger tasks. This just
provides an easier to use API.

There is `AsyncTaskThread` which is similar in nature, but this is not re-wrapping IThreadPool hence
has ability to have multiple worker threads. We can potentially replace that with this component by
setting `num_threads = 1`.

TODO: Move this to `flow/include` instead of here.
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Result of foundationdb-pr-clang on Linux CentOS 7

  • Commit ID: 93cf31e
  • Duration 0:04:35
  • Result: ❌ FAILED
  • Error: Error while executing command: if [[ $(git diff --shortstat 2> /dev/null | tail -n1) == "" ]]; then echo "CODE FORMAT CLEAN"; else echo "CODE FORMAT NOT CLEAN"; echo; echo "THE FOLLOWING FILES NEED TO BE FORMATTED"; echo; git ls-files -m; echo; exit 1; fi. Reason: exit status 1
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Result of foundationdb-pr on Linux CentOS 7

  • Commit ID: 93cf31e
  • Duration 0:04:34
  • Result: ❌ FAILED
  • Error: Error while executing command: if [[ $(git diff --shortstat 2> /dev/null | tail -n1) == "" ]]; then echo "CODE FORMAT CLEAN"; else echo "CODE FORMAT NOT CLEAN"; echo; echo "THE FOLLOWING FILES NEED TO BE FORMATTED"; echo; git ls-files -m; echo; exit 1; fi. Reason: exit status 1
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Result of foundationdb-pr-clang-ide on Linux CentOS 7

  • Commit ID: 93cf31e
  • Duration 0:04:44
  • Result: ❌ FAILED
  • Error: Error while executing command: if [[ $(git diff --shortstat 2> /dev/null | tail -n1) == "" ]]; then echo "CODE FORMAT CLEAN"; else echo "CODE FORMAT NOT CLEAN"; echo; echo "THE FOLLOWING FILES NEED TO BE FORMATTED"; echo; git ls-files -m; echo; exit 1; fi. Reason: exit status 1
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Result of foundationdb-pr-cluster-tests on Linux CentOS 7

  • Commit ID: 93cf31e
  • Duration 0:05:09
  • Result: ❌ FAILED
  • Error: Error while executing command: if [[ $(git diff --shortstat 2> /dev/null | tail -n1) == "" ]]; then echo "CODE FORMAT CLEAN"; else echo "CODE FORMAT NOT CLEAN"; echo; echo "THE FOLLOWING FILES NEED TO BE FORMATTED"; echo; git ls-files -m; echo; exit 1; fi. Reason: exit status 1
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Result of foundationdb-pr-macos on macOS Ventura 13.x

  • Commit ID: 93cf31e
  • Duration 0:07:20
  • Result: ❌ FAILED
  • Error: Error while executing command: if [[ $(git diff --shortstat 2> /dev/null | tail -n1) == "" ]]; then echo "CODE FORMAT CLEAN"; else echo "CODE FORMAT NOT CLEAN"; echo; echo "THE FOLLOWING FILES NEED TO BE FORMATTED"; echo; git ls-files -m; echo; exit 1; fi. Reason: exit status 1
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Result of foundationdb-pr-macos-m1 on macOS Ventura 13.x

  • Commit ID: 93cf31e
  • Duration 0:07:35
  • Result: ❌ FAILED
  • Error: Error while executing command: if [[ $(git diff --shortstat 2> /dev/null | tail -n1) == "" ]]; then echo "CODE FORMAT CLEAN"; else echo "CODE FORMAT NOT CLEAN"; echo; echo "THE FOLLOWING FILES NEED TO BE FORMATTED"; echo; git ls-files -m; echo; exit 1; fi. Reason: exit status 1
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@vishesh
gRPC server life-cycle management and AsyncTaskExecution
1e8c5b5 
This patch has two set of changes:

- Whenever a service is registered and removed from server, we need to restart gRPC server.
  GrpcServer provides some methods that can be used by worker actors so that the life of
  services registered by them can tied to the life of the worker role itself.

- Replace asio::thread_pool with AsyncTaskExecutor both in client and server.
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Result of foundationdb-pr-clang-ide on Linux CentOS 7

  • Commit ID: 1e8c5b5
  • Duration 0:23:28
  • Result: ✅ SUCCEEDED
  • Error: N/A
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Result of foundationdb-pr-clang-arm on Linux CentOS 7

  • Commit ID: 93cf31e
  • Duration 0:48:46
  • Result: ✅ SUCCEEDED
  • Error: N/A
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Result of foundationdb-pr-macos-m1 on macOS Ventura 13.x

  • Commit ID: 1e8c5b5
  • Duration 0:40:22
  • Result: ✅ SUCCEEDED
  • Error: N/A
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Result of foundationdb-pr-clang-arm on Linux CentOS 7

  • Commit ID: 1e8c5b5
  • Duration 0:48:14
  • Result: ✅ SUCCEEDED
  • Error: N/A
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Result of foundationdb-pr-cluster-tests on Linux CentOS 7

  • Commit ID: 1e8c5b5
  • Duration 0:57:39
  • Result: ✅ SUCCEEDED
  • Error: N/A
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Result of foundationdb-pr-clang on Linux CentOS 7

  • Commit ID: 1e8c5b5
  • Duration 0:59:07
  • Result: ❌ FAILED
  • Error: Error while executing command: if python3 -m joshua.joshua list --stopped | grep ${ENSEMBLE_ID} | grep -q 'pass=10[0-9][0-9][0-9]'; then echo PASS; else echo FAIL && exit 1; fi. Reason: exit status 1
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Result of foundationdb-pr on Linux CentOS 7

  • Commit ID: 1e8c5b5
  • Duration 1:01:43
  • Result: ❌ FAILED
  • Error: Error while executing command: if python3 -m joshua.joshua list --stopped | grep ${ENSEMBLE_ID} | grep -q 'pass=10[0-9][0-9][0-9]'; then echo PASS; else echo FAIL && exit 1; fi. Reason: exit status 1
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Result of foundationdb-pr-macos on macOS Ventura 13.x

  • Commit ID: 1e8c5b5
  • Duration 1:05:45
  • Result: ✅ SUCCEEDED
  • Error: N/A
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