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Default NXF_FUSION_TRACE to false #7071

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pditommaso merged 1 commit into from
Apr 24, 2026
+2 −2
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Default NXF_FUSION_TRACE to false #7071

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2 changes: 1 addition & 1 deletion docs/reference/env-vars.md
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Expand Up @@ -126,7 +126,7 @@ The following environment variables control the configuration of the Nextflow ru
`NXF_FUSION_TRACE`
: :::{versionadded} 26.04.0
:::
: When set to `true`, collect task resource metrics (CPU, memory, I/O) from the Fusion trace file (`.fusion/trace.json`) produced in the task work directory, replacing the metrics collected by the default bash command-trace wrapper. Requires Fusion to be enabled. GPU metrics from Fusion are always collected regardless of this setting.
: When set to `true`, collect task resource metrics (CPU, memory, I/O) from the Fusion trace file (`.fusion/trace.json`) produced in the task work directory, replacing the metrics collected by the default bash command-trace wrapper. Requires Fusion to be enabled. GPU metrics from Fusion are always collected regardless of this setting. Defaults to `false`.

`NXF_HOME`
: Nextflow home directory (default: `$HOME/.nextflow`).
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2 changes: 1 addition & 1 deletion modules/nf-commons/src/main/nextflow/Global.groovy
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Expand Up @@ -38,7 +38,7 @@ class Global {
* When {@code true}, Fusion trace metrics replace the bash command-trace wrapper
*/
static boolean isFusionTraceEnabled() {
return SysEnv.get('NXF_FUSION_TRACE', 'true') == 'true'
return SysEnv.get('NXF_FUSION_TRACE', 'false') == 'true'
}

/**
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