26 lines
1.2 KiB
PL/PgSQL
26 lines
1.2 KiB
PL/PgSQL
BEGIN;
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CREATE TABLE external_dependency_probe_state (
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service_name varchar(32) NOT NULL CHECK (service_name ~ '^[a-z][a-z0-9-]{1,31}$'),
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dependency varchar(64) NOT NULL CHECK (dependency ~ '^[a-z][a-z0-9_]{1,63}$'),
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status varchar(16) NOT NULL CHECK (status IN ('AVAILABLE','UNAVAILABLE')),
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checked_at timestamptz NOT NULL,
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last_success_at timestamptz,
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last_failure_at timestamptz,
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last_error_code varchar(80),
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latency_ms bigint NOT NULL CHECK (latency_ms >= 0),
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probe_interval_ms bigint NOT NULL CHECK (probe_interval_ms > 0),
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consecutive_failures integer NOT NULL DEFAULT 0 CHECK (consecutive_failures >= 0),
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updated_at timestamptz NOT NULL DEFAULT now(),
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PRIMARY KEY (service_name, dependency),
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CONSTRAINT external_probe_success_check CHECK (
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(status='AVAILABLE' AND last_success_at IS NOT NULL AND last_error_code IS NULL AND consecutive_failures=0) OR
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(status='UNAVAILABLE' AND last_failure_at IS NOT NULL AND last_error_code IS NOT NULL AND consecutive_failures>0)
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)
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);
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CREATE INDEX external_dependency_probe_status_idx
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ON external_dependency_probe_state(status, checked_at DESC);
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COMMIT;
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