Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 45 insertions, 0 deletions

diff --git a/doc/cephadm/services/tracing.rst b/doc/cephadm/services/tracing.rst
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+================
+Tracing Services
+================
+
+.. _cephadm-tracing:
+
+
+Jaeger Tracing
+==============
+
+Ceph uses Jaeger as the tracing backend. in order to use tracing, we need to deploy those services.
+
+Further details on tracing in ceph:
+
+`Ceph Tracing documentation <https://docs.ceph.com/en/latest/jaegertracing/#jaeger-distributed-tracing/>`_
+
+Deployment
+==========
+
+Jaeger services consist of 3 services:
+
+1. Jaeger Agent
+
+2. Jaeger Collector
+
+3. Jaeger Query
+
+Jaeger requires a database for the traces. we use ElasticSearch (version 6) by default.
+
+
+To deploy jaeger tracing service, when not using your own ElasticSearch:
+
+#. Deploy jaeger services, with a new elasticsearch container:
+
+    .. prompt:: bash #
+
+        ceph orch apply jaeger
+
+
+#. Deploy jaeger services, with existing elasticsearch cluster and existing jaeger query (deploy agents and collectors):
+
+     .. prompt:: bash #
+
+        ceph orch apply jaeger --without-query --es_nodes=ip:port,..
+