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loki/cmd/segment-inspect
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renovate[bot] 70570285d3
fix(deps): update module golang.org/x/net to v0.33.0 [security] (#15490) 		5 months ago
..
.gitignore feat: Add CLI to inspect RF=1 WAL segments (#13552) 10 months ago
README.md feat: Add CLI to inspect RF=1 WAL segments (#13552) 10 months ago
go.mod fix(deps): update module golang.org/x/net to v0.33.0 [security] (#15490) 5 months ago
go.sum fix(deps): update module golang.org/x/net to v0.33.0 [security] (#15490) 5 months ago
main.go feat: Add CLI to inspect RF=1 WAL segments (#13552) 10 months ago

README.md

Tools for inspecting Loki chunks

This tool can parse Loki WAL segments and print details from them. Useful for Loki developers.

To build the tool, simply run go build in this directory. Running resulting program with chunks file name gives you some basic chunks information:

$ ./segment-inspect 01J2F010G82AWFGAEC3WGKC84P

Segment file: 01J2F010G82AWFGAEC3WGKC84P
Compressed Filesize: 2.0 MB
Series Size: 1.8 MB
Index Size: 255 kB
Stream count: 865
Tenant count: 7
From: 2024-07-10 18:55:47.006697 UTC
To: 2024-07-10 18:55:51.454554 UTC
Duration: 4.447857915s

To print the individual streams contained in this segment, use -s parameter:

$ ./segment-inspect -s 01J2F010G82AWFGAEC3WGKC84P

... segment file info, see above ...

{__loki_tenant__="29", cluster="dev-us-central-0", container="loki-canary", controller_revision_hash="9cbf8c4bb", job="promtail-ops/loki-canary", name="loki-canary", namespace="promtail-ops", pod="loki-canary-z6jrt", pod_template_generation="2008", service_name="loki/loki-canary", stream="stdout"}
{__loki_tenant__="29", cluster="dev-us-central-0", container="loki-canary", controller_revision_hash="9cbf8c4bb", job="promtail-ops/loki-canary", name="loki-canary", namespace="promtail-ops", pod="loki-canary-zpx5v", pod_template_generation="2008", service_name="loki/loki-canary", stream="stdout"}
{__loki_tenant__="29", cluster="dev-us-central-0", container="metadata-forwarder", job="metadata-forwarder/metadata-forwarder", name="metadata-forwarder", namespace="metadata-forwarder", pod="metadata-forwarder-676f57978c-dpd2s", pod_template_hash="676f57978c", service_name="metadata-forwarder", stream="stderr"}
{__loki_tenant__="29", cluster="dev-us-central-0", container="metadata-forwarder", job="metadata-forwarder/metadata-forwarder", name="metadata-forwarder", namespace="metadata-forwarder", pod="metadata-forwarder-676f57978c-sbnc9", pod_template_hash="676f57978c", service_name="metadata-forwarder", stream="stderr"}
{__loki_tenant__="29", cluster="dev-us-central-0", container="mimir-read", gossip_ring_member="true", job="mimir-dev-09/mimir-read", name="mimir-read", namespace="mimir-dev-09", pod="mimir-read-74d58cd64c-4kg55", pod_template_hash="74d58cd64c", service_name="mimir/mimir-read", stream="stderr"}
... and so on ...