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TL;DR: Jaeger tracing support (tracing flag changed), various observability improvements, Thanos receiver improvements, improvement external label propagation, including federated Queriers (!) and other fixes.
NOTE: Thanks to improved external labels propagation, if you run have duplicate queries in your Querier configuration with hierarchical federation of multiple Queries, Thanos now will detect this case and block all duplicates. New releases (potentially in v0.6.1) will just warn and block all but one.
thanos check ruleslinter for Thanos rule rules files.
#1253 Add support for specifying a maximum amount of retries when using Azure Blob storage (default: no retries).
#1244 Thanos Compact now exposes new metrics
thanos_compact_downsample_failures_totalwhich are useful to catch when errors happen
#1260 Thanos Query/Rule now exposes metrics
thanos_ruler_query_apis_dns_provider_resultswhich tell how many addresses were configured and how many were actually discovered respectively
#1248 Add a web UI to show the state of remote storage.
#1217 Thanos Receive gained basic hashring support
#1262 Thanos Receive got a new metric
thanos_http_requests_totalwhich shows how many requests were handled by it
#1243 Thanos Receive got an ability to forward time series data between nodes. Now you can pass the hashring configuration via
--receive.hashrings-file; the refresh interval
--receive.hashrings-file-refresh-interval; the name of the local node's name
--receive.local-endpoint; and finally the header's name which is used to determine the tenant
#1147 Support for the Jaeger tracer has been added!
breaking New common flags were added for configuring tracing:
--tracing.config. You can either pass a file to Thanos with the tracing configuration or pass it in the command line itself. Old
--gcloudtrace.* flags were removed
To migrate over the old
--gcloudtrace.* configuration, your tracing configuration should look like this:
--- type: STACKDRIVER config: - service_name: 'foo' project_id: '123' sample_factor: 123
type you can use is
JAEGER now. The
config keys and values are Jaeger specific and you can find all of the information here.
#1284 Add support for multiple label-sets in Info gRPC service. This deprecates the single
Labelsslice of the
InfoResponse, in a future release backward compatible handling for the single set of Labels will be removed. Upgrading to v0.6.0 or higher is advised.
http_request_duration_microseconds(Summary) and adds
http_request_duration_seconds(Histogram) from http server instrumentation used in Thanos APIs and UIs.
#1287 Sidecar now waits on Prometheus' external labels before starting the uploading process
#1261 Thanos Receive now exposes metrics
thanos_http_response_size_bytesproperly of each handler
#1274 Iteration limit has been lifted from the LRU cache so there should be no more spam of error messages as they were harmless
#1321 Thanos Query now fails early on a query which only uses external labels - this improves clarity in certain situations
#1227 Some context handling issues were fixed in Thanos Compact; some unnecessary memory allocations were removed in the hot path of Thanos Store.
#1183 Compactor now correctly propogates retriable/haltable errors which means that it will not unnecessarily restart if such an error occurs
#1231 Receive now correctly handles SIGINT and closes without deadlocking
#1278 Fixed inflated values problem with
sum()on Thanos Query
#1280 Fixed a problem with concurrent writes to a
mapin Thanos Query while rendering the UI
#1311 Fixed occasional panics in Compact and Store when using Azure Blob cloud storage caused by lack of error checking in client library.
#1322 Removed duplicated closing of the gRPC listener - this gets rid of harmless messages like
store gRPC listener: close tcp 0.0.0.0:10901: use of closed network connectionwhen those programs are being closed
- #1216 the old "Command-line flags" has been removed from Thanos Query UI since it was not populated and because we are striving for consistency
TL;DR: Store LRU cache is no longer leaking, Upgraded Thanos UI to Prometheus 2.9, Fixed auto-downsampling, Moved to Go 1.12.5 and more.
This version moved tarballs to Golang 1.12.5 from 1.11 as well, so same warning applies if you use
container_memory_usage_bytes from cadvisor. Use
breaking As announced couple of times this release also removes gossip with all configuration flags (
- #1142 fixed major leak on store LRU cache for index items (postings and series).
- #1163 sidecar is no longer blocking for custom Prometheus versions/builds. It only checks if flags return non 404, then it performs optional checks.
- #1146 store/bucket: make getFor() work with interleaved resolutions.
- #1157 querier correctly handles duplicated stores when some store changes external labels in place.
- #1094 Allow configuring the response header timeout for the S3 client.
#1118 breaking swift: Added support for cross-domain authentication by introducing
The outdated terms
tenantNameare deprecated and have been replaced by
#1066 Upgrade Thanos ui to Prometheus v2.9.1.
Changes from the upstream:
#1156 Moved CI and docker multistage to Golang 1.12.5 for latest mem alloc improvements.
#1103 Updated go-cos deps. (COS bucket client).
#1149 Updated google Golang API deps (GCS bucket client).
#1190 Updated minio deps (S3 bucket client). This fixes minio retries.
#1133 Use prometheus v2.9.2, common v0.4.0 & tsdb v0.8.0.
Changes from the upstreams:
- store gateway:
- [ENHANCEMENT] Fast path for EmptyPostings cases in Merge, Intersect and Without.
- store gateway & compactor:
- [BUGFIX] Fix fd and vm_area leak on error path in chunks.NewDirReader.
- [BUGFIX] Fix fd and vm_area leak on error path in index.NewFileReader.
- [BUGFIX] Make sure subquery range is taken into account for selection #5467
- [ENHANCEMENT] Check for cancellation on every step of a range evaluation. #5131
- [BUGFIX] Exponentation operator to drop metric name in result of operation. #5329
- [BUGFIX] Fix output sample values for scalar-to-vector comparison operations. #5454
- [BUGFIX] Reload rules: copy state on both name and labels. #5368
- store gateway:
- #1008 breaking Removed Gossip implementation. All
--cluster.*flags removed and Thanos will error out if any is provided.
See full CHANGELOG here
- This release also disables gossip mode by default for all components.
See this for more details.
- Store Gateway startup process is massively improved in both efficiency and memory consumption
- Remote receiver component was added.
- StoreUI works now beautifully
- Timeout improvements for Querier
- Control of concurrency and sample limits on Store Gateway gRPC API
- Graceful handling and deletion of partial uploads made by Compactor.
- thanos.io website & automation
- #1053 compactor: Compactor & store gateway now handles incomplete uploads gracefully. Added hard limit on how long block upload can take (30m).
- #811 Remote write receiver component
❤️ ❤️thanks to RedHat (@brancz) contribution.
- #910 Query's stores UI page is now sorted by type and old DNS or File SD stores are removed after 5 minutes (configurable via the new
- #905 Thanos support for Query API: /api/v1/labels. Notice that the API was added in Prometheus v2.6.
- #798 Ability to limit the maximum number of concurrent request to Series() calls in Thanos Store and the maximum amount of samples we handle.
- #1060 Allow specifying region attribute in S3 storage configuration
--store.grpc.series-max-concurrency. Most likely you will want to make it the same as
--query.max-concurrent on Thanos Query.
New Store flags:
* `--store.grpc.series-sample-limit` limits the amount of samples that might be retrieved on a single Series() call. By default it is 0. Consider enabling it by setting it to more than 0 if you are running on limited resources. * `--store.grpc.series-max-concurrency` limits the number of concurrent Series() calls in Thanos Store. By default it is 20. Considering making it lower or bigger depending on the scale of your deployment.
New Store metrics:
* `thanos_bucket_store_queries_dropped_total` shows how many queries were dropped due to the samples limit; * `thanos_bucket_store_queries_concurrent_max` is a constant metric which shows how many Series() calls can concurrently be executed by Thanos Store; * `thanos_bucket_store_queries_in_flight` shows how many queries are currently "in flight" i.e. they are being executed; * `thanos_bucket_store_gate_duration_seconds` shows how many seconds it took for queries to pass through the gate in both cases - when that fails and when it does not.
New Store tracing span:
store_query_gate_ismyturn shows how long it took for a query to pass (or not) through the gate.
New Querier and Ruler flag:
-- store.sd-dns-resolverwhich allows to specify resolver to use. Either
#986 Allow to save some startup & sync time in store gateway as it is no longer needed to compute index-cache from block index on its own for larger blocks.
The store Gateway still can do it, but it first checks bucket if there is index-cached uploaded already.
In the same time, compactor precomputes the index cache file on every compaction.
New Compactor flag:
--index.generate-missing-cache-filewas added to allow quicker addition of index cache files. If enabled it precomputes missing files on compactor startup. Note that it will take time and it's only one-off step per bucket.
#887 Compact: Added new
--block-sync-concurrencyflag, which allows you to configure number of goroutines to use when syncing block metadata from object storage.
#928 Query: Added
--store.response-timeoutflag. If a Store doesn't send any data in this specified duration then a Store will be ignored and partial data will be returned if it's enabled. 0 disables timeout.
#893 S3 storage backend has graduated to
#936 Azure storage backend has graduated to
#937 S3: added trace functionality. You can add
trace.enable: trueto enable the minio client's verbose logging.
#953 Compact: now has a hidden flag
--debug.accept-malformed-index. Compaction index verification will ignore out of order label names.
#963 GCS: added possibility to inline ServiceAccount into GCS config.
#1010 Compact: added new flag
--compact.concurrency. Number of goroutines to use when compacting groups.
#1028 Query: added
--query.default-evaluation-interval, which sets default evaluation interval for sub queries.
#980 Ability to override Azure storage endpoint for other regions (China)
#1021 Query API
seriesnow supports POST method.
#939 Query API
query_rangenow supports POST method.
partial_response_disabledproto field. Added
partial_response_strategyinstead. Both in gRPC and Query API.
RuleGroupsby default means
abortstrategy (old PartialResponse disabled) as this is recommended option for Rules and alerts.
- Query Gate
- Most of thanos ruler metris related to rule manager has
Ruler tracing spans:
/rule_instant_query HTTP[client]is now
/rule_instant_query_part_resp_abort HTTP[client]"if request is for abort strategy.
#1009: Upgraded Prometheus (~v2.7.0-rc.0 to v2.8.1) and TSDB (
Changes that affects Thanos:
- [ENHANCEMENT] In histogram_quantile merge buckets with equivalent le values. #5158.
- [ENHANCEMENT] Show list of offending labels in the error message in many-to-many scenarios. #5189
- [BUGFIX] Fix panic when aggregator param is not a literal. #5290
- [ENHANCEMENT] Reduce time that Alertmanagers are in flux when reloaded. #5126
- [BUGFIX] prometheus_rule_group_last_evaluation_timestamp_seconds is now a unix timestamp. #5186
- [BUGFIX] prometheus_rule_group_last_duration_seconds now reports seconds instead of nanoseconds. Fixes our issue #1027
- [BUGFIX] Fix sorting of rule groups. #5260
- store: [ENHANCEMENT] Fast path for EmptyPostings cases in Merge, Intersect and Without.
- tooling: [FEATURE] New dump command to tsdb tool to dump all samples.
- compactor: [ENHANCEMENT] When closing the db any running compaction will be cancelled so it doesn't block.
- [CHANGE] Renamed flag
For ruler essentially whole TSDB CHANGELOG applies beween v0.4.0-v0.6.1: https://github.com/prometheus/tsdb/blob/master/CHANGELOG.md
Note that this was added on TSDB and Prometheus: [FEATURE] Time-ovelapping blocks are now allowed. #370
Whoever due to nature of Thanos compaction (distributed systems), for safety reason this is disabled for Thanos compactor for now.
#868 Go has been updated to 1.12.
#1055 Gossip flags are now disabled by default and deprecated.
#964 repair: Repair process now sorts the series and labels within block.
#1073 Store: index cache for requests. It now calculates the size properly (includes slice header), has anti-deadlock safeguard and reports more metrics.
thanos_objstore_bucket_last_successful_upload_timenow does not appear when no blocks have been uploaded so far.
- #966 Bucket: verify no longer warns about overlapping blocks, that overlap
- #848 Compact: now correctly works with time series with duplicate labels.
- #894 Thanos Rule: UI now correctly shows evaluation time.
- #865 Query: now properly parses DNS SRV Service Discovery.
- #889 Store: added safeguard against merging posting groups segfault
- #941 Sidecar: added better handling of intermediate restarts.
- #933 Query: Fixed 30 seconds lag of adding new store to query.
- #962 Sidecar: Make config reloader file writes atomic.
- #982 Query: now advertises Min & Max Time accordingly to the nodes.
- #1041 Ruler is now able to return long time range queries.
- #904 Compact: Skip compaction for blocks with no samples.
- #1070 Downsampling works back again. Deferred closer errors are now properly captured.
See the full changelog here