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https://github.com/GreptimeTeam/greptimedb.git
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shuiyisong
5fe9bdc814
* feat(prometheus): persist Remote Write exemplars Prometheus Remote Write v1 and v2 now persist valid exemplars in the source schema's metrics_exemplars table. A shared row contract keeps inherited series labels separate from exemplar labels, creates or validates an ordinary sparse append table, and preserves compatible pre-created timestamp precision. Malformed observations are dropped and counted without discarding valid samples or sibling exemplars. Permissions and admission precede writes, and v2 written-count headers use confirmed storage progress. Includes decoder, HTTP orchestration and physical-table routing coverage. The JSON2 row-schema helper becomes fallible; its three existing trace callers propagate that error in this layer. Signed-off-by: shuiyisong <xixing.sys@gmail.com> * feat(exemplar): persist source metric identities Signed-off-by: shuiyisong <xixing.sys@gmail.com> * fix(prometheus): bound exemplar write memory Signed-off-by: shuiyisong <xixing.sys@gmail.com> * fix(prometheus): correct batching with exemplars Signed-off-by: shuiyisong <xixing.sys@gmail.com> * fix(exemplar): accept mixed-case sparse encoding Signed-off-by: shuiyisong <xixing.sys@gmail.com> * perf(exemplar): reduce write preparation overhead Signed-off-by: shuiyisong <xixing.sys@gmail.com> * perf(prom): reuse exemplar source targets Signed-off-by: shuiyisong <xixing.sys@gmail.com> * fix: clippy Signed-off-by: shuiyisong <xixing.sys@gmail.com> * fix(prometheus): defer exemplar series expansion Signed-off-by: shuiyisong <xixing.sys@gmail.com> --------- Signed-off-by: shuiyisong <xixing.sys@gmail.com>
16 lines
697 B
SQL
16 lines
697 B
SQL
CREATE TABLE exemplar_source_ids (
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__table_id INT UNSIGNED NOT NULL,
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__tsid BIGINT UNSIGNED NOT NULL,
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greptime_metric STRING,
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greptime_timestamp TIMESTAMP(9) TIME INDEX,
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greptime_value DOUBLE,
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PRIMARY KEY (__table_id, __tsid, greptime_metric)
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) WITH ('append_mode'='true', 'primary_key_encoding'='sparse');
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INSERT INTO exemplar_source_ids VALUES
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(42, 18446744073709551615, 'cpu', 20, 1.0),
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(42, 18446744073709551615, 'cpu', 20, 1.0),
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(43, 18446744073709551615, 'memory', 10, 2.0);
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ADMIN FLUSH_TABLE('exemplar_source_ids');
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ALTER TABLE exemplar_source_ids ADD COLUMN job STRING PRIMARY KEY;
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INSERT INTO exemplar_source_ids VALUES (42, 7, 'cpu', 30, 3.0, 'api');
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