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Add warning for parallel builds #244

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Merged
duncanpo merged 2 commits into from
Mar 25, 2026
Merged

Add warning for parallel builds #244

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1b7319e
Add warning for parallel builds
sameagen-MW Mar 25, 2026
1add839
Update warning message for parallel builds
sameagen-MW Mar 25, 2026
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17 changes: 12 additions & 5 deletions instrumentation/buildtool/+matlab/+buildtool/+plugins/OpenTelemetryPlugin.m
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,17 @@

methods(Access = protected)
function runBuild(plugin, pluginData)
% Warn users that tasks on workers will not emit telemetry data
% if a pool is open.
%
% Imperfect detection of parallel builds but
% the impact of a false positive is very low
p = gcp("nocreate");
if ~isempty(p)
warning("opentelemetry:buildtool:OpenTelemetryPlugin:NoParallelEmit", ...
"Tasks executed on parallel workers do not emit telemetry data.");
end

% Configure by attaching to span if passed in via environment
% variable, and propagating baggage
configureOTel();
Expand Down Expand Up @@ -56,10 +67,6 @@ function runBuild(plugin, pluginData)
end

function runTask(plugin, pluginData)
% TODO:
% - buildtool.task.outputs
% - buildtool.task.inputs

% Definitions
task = pluginData.TaskGraph.Tasks;
taskName = pluginData.Name;
Expand Down Expand Up @@ -187,4 +194,4 @@ function cleanupOTel(span)
otellp = opentelemetry.logs.Provider.getLoggerProvider;
opentelemetry.sdk.common.Cleanup.forceFlush(otellp, timeout);
opentelemetry.sdk.common.Cleanup.shutdown(otellp);
end
end
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