github.com/jaegertracing/jaeger

Backend Changes

• Discover dependencies table version automatically (#1364, @black-adder)

Bug fixes, Minor Improvements

• Separate query-service functionality from http handler (#1312, @annanay25)

UI Changes

Backend Changes

⛔ Breaking Changes

• Remove cassandra SASI indices (#1328, @black-adder)

Migration Path:

1. Run plugin/storage/cassandra/schema/migration/v001tov002part1.sh which will copy dependencies into a csv, update the dependency UDT, create a new dependencies_v2 table, and write dependencies from the csv into the dependencies_v2 table.
2. Run the collector and query services with the cassandra flag cassandra.enable-dependencies-v2=true which will instruct jaeger to write and read to and from the new dependencies_v2 table.
3. Update spark job to write to the new dependencies_v2 table. The feature will be done in #58.
4. Run plugin/storage/cassandra/schema/migration/v001tov002part2.sh which will DELETE the old dependency table and the SASI index.

Users who wish to continue to use the v1 table don't have to do anything as the cassandra flag cassandra.enable-dependencies-v2 will default to false. Users may migrate on their own timeline however new features will be built solely on the dependencies_v2 table. In the future, we will remove support for v1 completely.

• Remove ErrorBusy, it essentially duplicates SpansDropped (#1091, @cstyan)

New Features

• Support certificates in elasticsearch scripts (#1339, @pavolloffay)
• Add ES Rollover support to main indices (#1309, @pavolloffay)
• Load ES auth token from file (#1319, @pavolloffay)
• Add username/password authentication to ES index cleaner (#1318, @gregoryfranklin)
• Add implementation of FindTraceIDs function for Elasticsearch reader (#1280, @vlamug)
• Support archive traces for ES storage (#1197, @pavolloffay)

Bug fixes, Minor Improvements

• Use Zipkin annotations if the timestamp is zero (#1341, @geobeau)
• Use GRPC round robin balancing even if only one hostname (#1329, @benley)
• Tolerate whitespaces in ES servers and kafka brokers (#1305, @verma-varsha)
• Let cassandra servers contain whitespace in config (#1301, @karlpokus)

UI Changes

Backend Changes

⛔ Breaking Changes

• Change Elasticsearch index prefix from : to - (#1284, @pavolloffay)

Changed index prefix separator from : to - because Elasticsearch 7 does not allow : in index name. Jaeger query still reads from old indices containing - as a separator, therefore no configuration or migration changes are required.

• Add CLI configurable es.max-num-spans while retrieving spans from ES (#1283, @annanay25)

The default value is set to 10000. Before no limit was applied.

• Update to jaeger-lib 2 and latest sha for jaeger-client-go, to pick up refactored metric names (#1282, @objectiser)

Update to latest version of jaeger-lib, which includes a change to the naming of counters exported to prometheus, to follow the convention of using a _total suffix, e.g. jaeger_query_requests is now jaeger_query_requests_total.

Jaeger go client metrics, previously under the namespace jaeger_client_jaeger_ are now under jaeger_tracer_.

• Add gRPC metrics to agent (#1180, @pavolloffay)

The following metrics:

jaeger_agent_tchannel_reporter_batch_size{format="jaeger"} 0
jaeger_agent_tchannel_reporter_batch_size{format="zipkin"} 0
jaeger_agent_tchannel_reporter_batches_failures{format="jaeger"} 0
jaeger_agent_tchannel_reporter_batches_failures{format="zipkin"} 0
jaeger_agent_tchannel_reporter_batches_submitted{format="jaeger"} 0
jaeger_agent_tchannel_reporter_batches_submitted{format="zipkin"} 0
jaeger_agent_tchannel_reporter_spans_failures{format="jaeger"} 0
jaeger_agent_tchannel_reporter_spans_failures{format="zipkin"} 0
jaeger_agent_tchannel_reporter_spans_submitted{format="jaeger"} 0
jaeger_agent_tchannel_reporter_spans_submitted{format="zipkin"} 0

jaeger_agent_collector_proxy{endpoint="baggage",result="err"} 0
jaeger_agent_collector_proxy{endpoint="baggage",result="ok"} 0
jaeger_agent_collector_proxy{endpoint="sampling",result="err"} 0
jaeger_agent_collector_proxy{endpoint="sampling",result="ok"} 0

have been renamed to:

jaeger_agent_reporter_batch_size{format="jaeger",protocol="tchannel"} 0
jaeger_agent_reporter_batch_size{format="zipkin",protocol="tchannel"} 0
jaeger_agent_reporter_batches_failures{format="jaeger",protocol="tchannel"} 0
jaeger_agent_reporter_batches_failures{format="zipkin",protocol="tchannel"} 0
jaeger_agent_reporter_batches_submitted{format="jaeger",protocol="tchannel"} 0
jaeger_agent_reporter_batches_submitted{format="zipkin",protocol="tchannel"} 0
jaeger_agent_reporter_spans_failures{format="jaeger",protocol="tchannel"} 0
jaeger_agent_reporter_spans_failures{format="zipkin",protocol="tchannel"} 0
jaeger_agent_reporter_spans_submitted{format="jaeger",protocol="tchannel"} 0
jaeger_agent_reporter_spans_submitted{format="zipkin",protocol="tchannel"} 0

jaeger_agent_collector_proxy{endpoint="baggage",protocol="tchannel",result="err"} 0
jaeger_agent_collector_proxy{endpoint="baggage",protocol="tchannel",result="ok"} 0
jaeger_agent_collector_proxy{endpoint="sampling",protocol="tchannel",result="err"} 0
jaeger_agent_collector_proxy{endpoint="sampling",protocol="tchannel",result="ok"} 0

• Rename tcollector proxy metric in agent (#1182, @pavolloffay)

The following metric:

jaeger_http_server_errors{source="tcollector-proxy",status="5xx"}

has been renamed to:

jaeger_http_server_errors{source="collector-proxy",status="5xx"}

New Features

• Add tracegen utility for generating traces (#1245, @yurishkuro)
• Use DCAwareRoundRobinPolicy as fallback for TokenAwarePolicy (#1285, @vprithvi)
• Add Zipkin Thrift as kafka ingestion format (#1256, @geobeau)
• Add FindTraceID to the spanstore interface (#1246, @vprithvi)
• Migrate from glide to dep (#1240, @isaachier)
• Make tchannel timeout for reporting in agent configurable (#1034, @gouthamve)
• Add archive traces to all-in-one (#1189, @pavolloffay)
• Start moving components of adaptive sampling to OSS (#973, @black-adder)
• Add gRPC communication between agent and collector (#1165, #1187, #1181 and #1180, @pavolloffay)

Bug fixes, Minor Improvements

• Update exposed ports in ingester dockerfile (#1289, @objectiser)
• Upgrade Shopify/Sarama for proper handling newest kafka servers 2.x by ingester (#1248, @vprithvi)
• Fix sampling strategies overwriting service entry when no sampling type is specified (#1244, @objectiser)
• Fix dot replacement for int (#1272, @pavolloffay)
• Add C* query to error logs (#1250, @vprithvi)
• Add locking around partitionIDToState map accesses (#1239, @vprithvi)
• Reorganize config manager packages in agent (#1198, @pavolloffay)

UI Changes

• UI pinned to version 1.0.0. The changelog is available here v1.0.0

UI Changes

New Features

• Embedded components (SearchTraces and Tracepage) (#263, @aljesusg)

Bug fixes, Minor Improvements

• Fix link in scatter plot when embed mode (#283, @aljesusg)
• Fix rendering X axis in TraceResultsScatterPlot - pass milliseconds to moment.js (#274, @istrel)

Backend Changes

Bug fixes, Minor Improvements

• Make agent timeout for reporting configurable and fix flags overriding (#1034, @gouthamve)
• Fix metrics handler registration in agent (#1178, @pavolloffay)