The store component of Thanos implements the Store API on top of historical data in an object storage bucket. It acts primarily as an API gateway and therefore does not need significant amounts of local disk space. It joins a Thanos cluster on startup and advertises the data it can access. It keeps a small amount of information about all remote blocks on local disk and keeps it in sync with the bucket. This data is generally safe to delete across restarts at the cost of increased startup times.
$ thanos store \
--data-dir "/local/state/data/dir" \
--cluster.peers "thanos-cluster.example.org" \
--objstore.config-file "bucket.yml"
The content of bucket.yml:
type: GCS
config:
bucket: example-bucket
In general about 1MB of local disk space is required per TSDB block stored in the object storage bucket.
usage: thanos store [<flags>]
store node giving access to blocks in a bucket provider. Now supported GCS, S3,
Azure, Swift and Tencent COS.
Flags:
-h, --help Show context-sensitive help (also try
--help-long and --help-man).
--version Show application version.
--log.level=info Log filtering level.
--log.format=logfmt Log format to use.
--gcloudtrace.project=GCLOUDTRACE.PROJECT
GCP project to send Google Cloud Trace tracings
to. If empty, tracing will be disabled.
--gcloudtrace.sample-factor=1
How often we send traces (1/<sample-factor>).
If 0 no trace will be sent periodically, unless
forced by baggage item. See
`pkg/tracing/tracing.go` for details.
--http-address="0.0.0.0:10902"
Listen host:port for HTTP endpoints.
--grpc-address="0.0.0.0:10901"
Listen ip:port address for gRPC endpoints
(StoreAPI). Make sure this address is routable
from other components.
--grpc-server-tls-cert="" TLS Certificate for gRPC server, leave blank to
disable TLS
--grpc-server-tls-key="" TLS Key for the gRPC server, leave blank to
disable TLS
--grpc-server-tls-client-ca=""
TLS CA to verify clients against. If no client
CA is specified, there is no client
verification on server side. (tls.NoClientCert)
--data-dir="./data" Data directory in which to cache remote blocks.
--index-cache-size=250MB Maximum size of items held in the index cache.
--chunk-pool-size=2GB Maximum size of concurrently allocatable bytes
for chunks.
--store.grpc.series-sample-limit=0
Maximum amount of samples returned via a single
Series call. 0 means no limit. NOTE: for
efficiency we take 120 as the number of samples
in chunk (it cannot be bigger than that), so
the actual number of samples might be lower,
even though the maximum could be hit.
--store.grpc.series-max-concurrency=20
Maximum number of concurrent Series calls.
--objstore.config-file=<bucket.config-yaml-path>
Path to YAML file that contains object store
configuration.
--objstore.config=<bucket.config-yaml>
Alternative to 'objstore.config-file' flag.
Object store configuration in YAML.
--sync-block-duration=3m Repeat interval for syncing the blocks between
local and remote view.
--block-sync-concurrency=20
Number of goroutines to use when syncing blocks
from object storage.