Mauro Stettler 0df3489275 Write chunks via queue, predicting the refs (#10051) ... * Write chunks via queue, predicting the refs Our load tests have shown that there is a latency spike in the remote write handler whenever the head chunks need to be written, because chunkDiskMapper.WriteChunk() blocks until the chunks are written to disk. This adds a queue to the chunk disk mapper which makes the WriteChunk() method non-blocking unless the queue is full. Reads can still be served from the queue. Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * address PR feeddback Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * initialize metrics without .Add(0) Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * change isRunningMtx to normal lock Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * do not re-initialize chunkrefmap Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * update metric outside of lock scope Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * add benchmark for adding job to chunk write queue Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * remove unnecessary "success" var Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * gofumpt -extra Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * avoid WithLabelValues call in addJob Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * format comments Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * addressing PR feedback Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * rename cutExpectRef to cutAndExpectRef Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * use head.Init() instead of .initTime() Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * address PR feedback Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * PR feedback Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com> Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * update test according to PR feedback Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * replace callbackWg -> awaitCb Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * better test of truncation with empty files Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> * replace callbackWg -> awaitCb Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> Co-authored-by: Ganesh Vernekar <15064823+codesome@users.noreply.github.com>		2022-01-10 13:36:45 +00:00
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chunk_write_queue.go	Write chunks via queue, predicting the refs (#10051)	2022-01-10 13:36:45 +00:00
chunk_write_queue_test.go	Write chunks via queue, predicting the refs (#10051)	2022-01-10 13:36:45 +00:00
chunks.go	clarify HeadChunkID type and usage (#9726)	2021-11-17 18:35:10 +05:30
chunks_test.go	Testify: move to require (#8122)	2020-10-29 09:43:23 +00:00
head_chunks.go	Write chunks via queue, predicting the refs (#10051)	2022-01-10 13:36:45 +00:00
head_chunks_other.go	tsdb/chunks: preallocate at least some space on non-Windows systems (#9581)	2021-11-09 13:47:00 +05:30
head_chunks_test.go	Write chunks via queue, predicting the refs (#10051)	2022-01-10 13:36:45 +00:00
head_chunks_windows.go	Format Go source files using 'gofumpt -w -s -extra'	2021-11-02 19:52:34 +01:00