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adds enforced tag filters into cache key (#1095)

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Nikolay 2021-02-27 01:15:53 +03:00 committed by GitHub
parent a78948ae8b
commit 186c078fac
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1 changed files with 7 additions and 4 deletions
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11
app/vmselect/promql/rollup_result_cache.go
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@ -178,7 +178,7 @@ func (rrc *rollupResultCache) Get(ec *EvalConfig, expr metricsql.Expr, window in
bb := bbPool.Get()
defer bbPool.Put(bb)
bb.B = marshalRollupResultCacheKey(bb.B[:0], expr, window, ec.Step)
bb.B = marshalRollupResultCacheKey(bb.B[:0], expr, window, ec.Step, ec.EnforcedTagFilters)
metainfoBuf := rrc.c.Get(nil, bb.B)
if len(metainfoBuf) == 0 {
return nil, ec.Start
@ -198,7 +198,7 @@ func (rrc *rollupResultCache) Get(ec *EvalConfig, expr metricsql.Expr, window in
if len(compressedResultBuf.B) == 0 {
mi.RemoveKey(key)
metainfoBuf = mi.Marshal(metainfoBuf[:0])
bb.B = marshalRollupResultCacheKey(bb.B[:0], expr, window, ec.Step)
bb.B = marshalRollupResultCacheKey(bb.B[:0], expr, window, ec.Step, ec.EnforcedTagFilters)
rrc.c.Set(bb.B, metainfoBuf)
return nil, ec.Start
}
@ -301,7 +301,7 @@ func (rrc *rollupResultCache) Put(ec *EvalConfig, expr metricsql.Expr, window in
bb.B = key.Marshal(bb.B[:0])
rrc.c.SetBig(bb.B, compressedResultBuf.B)
bb.B = marshalRollupResultCacheKey(bb.B[:0], expr, window, ec.Step)
bb.B = marshalRollupResultCacheKey(bb.B[:0], expr, window, ec.Step, ec.EnforcedTagFilters)
metainfoBuf := rrc.c.Get(nil, bb.B)
var mi rollupResultCacheMetainfo
if len(metainfoBuf) > 0 {
@ -331,11 +331,14 @@ var tooBigRollupResults = metrics.NewCounter("vm_too_big_rollup_results_total")
// Increment this value every time the format of the cache changes.
const rollupResultCacheVersion = 7
func marshalRollupResultCacheKey(dst []byte, expr metricsql.Expr, window, step int64) []byte {
func marshalRollupResultCacheKey(dst []byte, expr metricsql.Expr, window, step int64, filters []storage.TagFilter) []byte {
dst = append(dst, rollupResultCacheVersion)
dst = encoding.MarshalInt64(dst, window)
dst = encoding.MarshalInt64(dst, step)
dst = expr.AppendString(dst)
for _, f := range filters {
dst = f.Marshal(dst)
}
return dst
}