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Add support for correlating traces and logs. #123
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I added two experimental log correlation libraries to opencensus-java: Stackdriver (google-cloud-logging): https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver |
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One issue that came up was deciding how to name the keys for the tracing data, when the logging framework supports adding arbitrary key-value pairs to log entries. We should probably standardize the key names. See the discussion at census-instrumentation/opencensus-java#1371 (comment). The Log4j log correlation library currently uses the keys |
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…mentation#123). The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
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…mentation#123). The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
sebright
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…mentation#123). The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
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…mentation#123). The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
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…mentation#123). The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
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…mentation#123). The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
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…mentation#123). The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
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The specification only covers aspects of log correlation that are likely to be shared by log correlation implementations for multiple languages and logging frameworks. It is based on the experimental log correlation libraries in opencensus-java: https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/stackdriver https://github.com/census-instrumentation/opencensus-java/tree/master/contrib/log_correlation/log4j2
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One approach is to add trace IDs, span IDs, or other fields from the current span to log entries that are created with existing logging frameworks. I am currently experimenting with this feature in opencensus-java (census-instrumentation/opencensus-java#1212), but I think we should design a feature that can be supported across multiple languages and include it in opencensus-specs.
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