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src: trace_event: secondary storage for metadata #20900

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@ofrobots ofrobots commented May 22, 2018

Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

/cc @nodejs/trace-events

CI:

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines

@ofrobots ofrobots requested a review from jasnell May 22, 2018 22:48
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. labels May 22, 2018
@BridgeAR BridgeAR added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label May 24, 2018
@addaleax addaleax removed the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Jun 7, 2018
@ofrobots ofrobots added the trace_events Issues and PRs related to V8, Node.js core, and userspace code trace events. label Jun 26, 2018
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I am unable to build on AIX to reproduce the timeout that only happens on AIX.

~/tmp/ofrobots/aix61-ppc64 $ gmake
gmake -C out BUILDTYPE=Release V=1
gmake[1]: Entering directory `/home/iojs/tmp/ofrobots/aix61-ppc64/out'
node.target.mk:13: warning: overriding recipe for target `/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/node.exp'
cctest.target.mk:13: warning: ignoring old recipe for target `/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/node.exp'
  touch 4874ac81486ce32779d2dbfe562b8f1b6ec63989.intermediate
  LD_LIBRARY_PATH=/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/lib.host:/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/lib.target:$LD_LIBRARY_PATH; export LD_LIBRARY_PATH; cd ../.; mkdir -p /home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj/gen/src/node/inspector/protocol; python deps/v8/third_party/inspector_protocol/CodeGenerator.py --jinja_dir deps/v8/third_party/inspector_protocol/.. --output_base "/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj/gen/src/" --config "/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj/gen/node_protocol_config.json"
  touch 48324d268abcc345f409e144bccee591e70bdbe8.intermediate
  LD_LIBRARY_PATH=/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/lib.host:/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/lib.target:$LD_LIBRARY_PATH; export LD_LIBRARY_PATH; cd ../deps/v8/gypfiles; mkdir -p /home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj/gen/src/inspector/protocol /home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj/gen/include/inspector; python ../third_party/inspector_protocol/CodeGenerator.py --jinja_dir ../third_party --output_base "/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj/gen/src/inspector" --config ../src/inspector/inspector_protocol_config.json
  g++ -pthread -Wl,-bbigtoc -maix64  -o /home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/genccode /home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj.host/genccode/deps/icu-small/source/tools/genccode/genccode.o /home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj.host/genccode/tools/icu/no-op.o /home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/obj.host/tools/icu/libicutools.a
ld: 0711-317 ERROR: Undefined symbol: .std::type_info::operator==(std::type_info const&) const
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.
collect2: error: ld returned 8 exit status
gmake[1]: *** [/home/iojs/tmp/ofrobots/aix61-ppc64/out/Release/genccode] Error 1
rm 4874ac81486ce32779d2dbfe562b8f1b6ec63989.intermediate 48324d268abcc345f409e144bccee591e70bdbe8.intermediate
gmake[1]: Leaving directory `/home/iojs/tmp/ofrobots/aix61-ppc64/out'
gmake: *** [node] Error 2

This is after I setup the environment as per select-compiler.sh.

I'm stuck at this point. @mhdawson @richardlau is there a way to get help with this?

The test that times out has a large number of FS/IO operations in it. It is quite possible that the AIX machines genuinely not able able to finish this work in 120s. Either way, I cannot build on the machine, so I am unable to debug.

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cc @nodejs/platform-aix @jBarz

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@refack pointed me to the job config on jenkins which fills in more blanks for me. I can build now.

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Out of interest, what was the missing piece?

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ofrobots commented Jun 28, 2018 via email

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ofrobots commented Jun 28, 2018

The aix timeout should be fixed by #21335. On AIX the race manifests as an infinite loop on this particular test on erroneous shutdown.

EDIT: minimal repro: ./node --trace-events-enabled -e 'throw 42'.

@ofrobots ofrobots added the blocked PRs that are blocked by other issues or PRs. label Jun 28, 2018
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jasnell commented Aug 12, 2018

Ping @ofrobots

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Thanks for the ping. I plan to come back to this later this week.

@ofrobots ofrobots removed the blocked PRs that are blocked by other issues or PRs. label Aug 13, 2018
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jasnell commented Sep 10, 2018

Ping again :-)

@jasnell jasnell added the stalled Issues and PRs that are stalled. label Sep 10, 2018
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I am planning to come back to this once #22865 is addressed, i.e. after libuv/libuv#2003, #23110, and #22938 land.

@ofrobots ofrobots removed the stalled Issues and PRs that are stalled. label Oct 11, 2018
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ofrobots commented Oct 12, 2018

This is updated now given the cascade of blockers are now resolved. New CI: https://ci.nodejs.org/job/node-test-pull-request/17751/

Linter re-run: https://ci.nodejs.org/job/node-test-linter/22720/

Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.
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CI is green. @jasnell assuming your LGTM from 5 months ago (!) still holds, I am going to land this later today. The rebase did not change this PR in substance.

@ofrobots ofrobots added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Oct 12, 2018
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Landed in f5986a4

@addaleax addaleax closed this Oct 12, 2018
addaleax pushed a commit that referenced this pull request Oct 12, 2018
Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

PR-URL: #20900
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
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Should this be backported to v10.x-staging? If yes please follow the guide and raise a backport PR, if not let me know or add the dont-land-on label.

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backport on #23700

jasnell pushed a commit that referenced this pull request Oct 17, 2018
Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

PR-URL: #20900
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
ofrobots added a commit to ofrobots/node that referenced this pull request Nov 8, 2018
Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

PR-URL: nodejs#20900
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Backport-PR-URL: nodejs#23700
MylesBorins pushed a commit that referenced this pull request Nov 12, 2018
Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

Backport-PR-URL: #23700
PR-URL: #20900
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Backport-PR-URL: #23700
@codebytere codebytere mentioned this pull request Nov 27, 2018
rvagg pushed a commit that referenced this pull request Nov 28, 2018
Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

Backport-PR-URL: #23700
PR-URL: #20900
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Backport-PR-URL: #23700
MylesBorins pushed a commit that referenced this pull request Nov 29, 2018
Metadata trace-events should be held in secondary storage so that they
can be periodically reemitted. This change establishes the secondary
storage and ensures that events are reemitted on each flush.

Backport-PR-URL: #23700
PR-URL: #20900
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Backport-PR-URL: #23700
@codebytere codebytere mentioned this pull request Nov 29, 2018
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7 participants