joshelser commented on a change in pull request #3762:
URL: https://github.com/apache/hbase/pull/3762#discussion_r742108746
##########
File path: conf/hbase-env.sh
##########
@@ -143,10 +143,32 @@
# export GREP="${GREP-grep}"
# export SED="${SED-sed}"
-# Uncomment to enable trace, you can change the options to use other exporters
such as jaeger or
-# zipkin. See
https://github.com/open-telemetry/opentelemetry-java-instrumentation on how to
+# Tracing
+# Uncomment some combination of these lines to enable tracing. You should
change the options to use
+# the exporters appropriate to your environment. See
+# https://github.com/open-telemetry/opentelemetry-java-instrumentation for
details on how to
# configure exporters and other components through system properties.
-# export HBASE_TRACE_OPTS="-Dotel.resource.attributes=service.name=HBase
-Dotel.traces.exporter=logging -Dotel.metrics.exporter=none"
+#
+# The presence HBASE_TRACE_OPTS indicates that tracing should be enabled, and
serves as site-wide
+# settings.
+# export HBASE_TRACE_OPTS="-Dotel.traces.exporter=none
-Dotel.metrics.exporter=none"
+#
+# Per-process configuration variables allow for fine-grained configuration
control.
+# export HBASE_SHELL_OPTS="${HBASE_SHELL_OPTS} ${HBASE_TRACE_OPTS}
-Dotel.resource.attributes=service.name=hbase-shell"
Review comment:
Is it intentional that a user has to update their hbase-env.sh to
automatically pass through HBASE_TRACE_OPTS to the relevant commands when they
want it?
Meaning, when the user wants to turn on tracing, is there harm in setting
`otel.resource.attributes=service.name=...` for all of these opts
automatically, but let the user set their HBASE_TRACE_OPTS as they deem
appropriate?
##########
File path: bin/hbase
##########
@@ -493,7 +493,9 @@ add_jdk11_deps_to_classpath() {
}
add_opentelemetry_agent() {
- if ! agent_jar=$(find lib/trace -type f -name "opentelemetry-javaagent-*"
2>/dev/null); then
+ if [ -e "${OPENTELEMETRY_JAVAAGENT_PATH}" ] ; then
+ agent_jar="${OPENTELEMETRY_JAVAAGENT_PATH}"
+ elif ! agent_jar=$(find "${HBASE_HOME}/lib/trace" -type f -name
"opentelemetry-javaagent-*" 2>/dev/null); then
Review comment:
Do you want `find -L`? I'm not sure if we have already resolved
`HBASE_HOME` to be the "real" path by the time this function is called.
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