Comments (3)
If I understand correctly, the problem is that the span contains a error where the command likely executed normally (when shell_exec
returns null it can be error or simply no output), right? Or do you have other concerns? You say that "[i]t's not possible to understand the command that was run for example", but the example you show includes the command run (stty 2> /dev/null
).
from dd-trace-php.
@cataphract Hi! I am sorry I misunderstood how it works 👍
I think I understand the purpose of this new feature and it can be quite useful actually.
At the moment I am missing a stack trace to understand where the error comes from but that does not sound doable.
And you're right for shell_exec
but it's actually PHP that has an ambiguous behavior on this.
➡️ I am sorry for the noise, I am closing that issue 🙏
from dd-trace-php.
If I understand correctly, the problem is that the span contains a error where the command likely executed normally (when
shell_exec
returns null it can be error or simply no output), right? Or do you have other concerns?
We have encountered the same and that's precisely the concern in our case. Null does not indicate an error, however it's being traced as such. Well, not always.
We are using Symfony commands via cron (which looks to be the case for @B-Galati as well) and there are a number of functionality/mode checks using shell_exec.
However, there appears to be a nuance I am not understanding. Not all shell_exec()
returning null are traced as an error. Not all Symfony commands are affected (of which we have many!) and executing the php cli manually does not indicate an error in the trace:
DD_TRACE_CLI_ENABLED=1 DD_SERVICE=test_cli php -r 'var_dump(shell_exec("export foo=bar"));'
# NULL
Additionally, just to check, there is no change in the trace even if there is indeed an error with the shell_exec()
:
DD_TRACE_CLI_ENABLED=1 DD_SERVICE=test_cli php -r 'var_dump(shell_exec("cat /file/does/not/exist"));'
# cat: /file/does/not/exist: No such file or directory
# NULL
I'm not sure which criteria, configuration, or invocation method with shell_exec()
returning NULL marks the trace as an error versus not.
Information about my setup within
PHP Version
PHP 8.2.18 (cli) (built: Apr 11 2024 20:36:27) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.2.18, Copyright (c) Zend Technologies
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Exception Profiling Enabled => true
Endpoint Collection Enabled => true
Platform's CPU Time API Works => true
Profiling Log Level => off
Profiling Agent Endpoint => http://localhost:8126/
Application's Environment (DD_ENV) =>
Application's Service (DD_SERVICE) => Standard input code
Application's Version (DD_VERSION) =>
Directive => Local Value => Master Value
datadog.profiling.enabled => On => On
datadog.profiling.experimental_features_enabled => Off => Off
datadog.profiling.endpoint_collection_enabled => On => On
datadog.profiling.experimental_cpu_time_enabled => On => On
datadog.profiling.experimental_cpu_enabled => On => On
datadog.profiling.allocation_enabled => On => On
datadog.profiling.experimental_allocation_enabled => On => On
datadog.profiling.timeline_enabled => On => On
datadog.profiling.experimental_timeline_enabled => On => On
datadog.profiling.exception_enabled => On => On
datadog.profiling.experimental_exception_enabled => On => On
datadog.profiling.exception_message_enabled => Off => Off
datadog.profiling.exception_sampling_distance => 100 => 100
datadog.profiling.experimental_exception_sampling_distance => 100 => 100
datadog.profiling.log_level => off => off
datadog.profiling.output_pprof => no value => no value
datadog.profiling.walltime_enabled => On => On
from dd-trace-php.
Related Issues (20)
- [Bug]: Standalone null Return Type for update_span_duration Causes Phan Parsing to Fail for PHP <8.2 HOT 1
- [Bug]: Memory leak in creating Tracer HOT 8
- [Bug]: 0.98.x tar.gz file size increased? HOT 9
- [Bug]: Bad signature error HOT 6
- [Feature] Error Tracking via logs HOT 5
- [Bug]: CLI PHP Processes do not stop and with Apache (mod_php) the connection is closed unexpectedly HOT 1
- [Bug]: Laravel Octane traces not showing in dashboard HOT 17
- [Bug]: Service name is always "laravelqueue" and can't be changed HOT 2
- [Feature] Missing instrumentation for batched AMQP publishing
- [Bug]: Integrations being added as Services in the APM UI HOT 1
- [Help]: Configurations in Docker and kubernetes HOT 9
- [Bug]: DD Trace breaks project with PHP 8.3.7 - Laravel 11.7 HOT 5
- [Bug]: Memory leak with DD_APPSEC_ENABLED="false" HOT 3
- Standalone install from IPv6-only server HOT 4
- [Bug]: post-install.sh does not detect the 'json' extension on PHP 8.1.29 HOT 5
- [Bug]: Failed connecting to the sidecar HOT 2
- [Bug]: WordPress Integration is incomplete HOT 4
- [Feature] Include max memory usage in root span HOT 4
- [Bug]: Trace ids are no longer cascaded on next spans after `Tracer::extract(Format::TEXT_MAP)` & using context on `startxSpan` HOT 1
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from dd-trace-php.