6 Commits (3d54bcc018df3e081758db3e13a49f9a2566c49b)

Author	SHA1	Message	Date
Abhijit Mukherjee	8f6d5dcd45	Fix: getting rid of EncOOOXOR chunk encoding (#12111) ... Signed-off-by: mabhi <abhijit.mukherjee@infracloud.io>	2 years ago
Peter Štibraný	ffc60d8397	Reduce chunk write queue memory usage 2 (#10874) ... * Job queue This PR reimplements chan chunkWriteJob with custom buffered queue that should use less memory, because it doesn't preallocate entire buffer for maximum queue size at once. Instead it allocates individual "segments" with smaller size. As elements are added to the queue, they fill individual segments. When elements are removed from the queue (and segments), empty segments can be thrown away. This doesn't change memory usage of the queue when it's full, but should decrease its memory footprint when it's empty (queue will keep max 1 segment in such case). Signed-off-by: Peter Štibraný <pstibrany@gmail.com> * Modify test to work with low resolution timer. Signed-off-by: Peter Štibraný <pstibrany@gmail.com> * Improve comments. Signed-off-by: Peter Štibraný <pstibrany@gmail.com>	2 years ago
Peter Štibraný	03a2313f7a	Reduce chunk write queue memory usage (#10873) ... * dont waste space on the chunkRefMap * add time factor * add comments * better readability * add instrumentation and more comments * formatting * uppercase comments * Address review feedback. Renamed "free" to "shrink" everywhere, updated comments and threshold to 1000. * double space Signed-off-by: Mauro Stettler <mauro.stettler@gmail.com> Co-authored-by: Peter Štibraný <pstibrany@gmail.com> Co-authored-by: Mauro Stettler <mauro.stettler@gmail.com>	2 years ago
Mauro Stettler	bf959b36cb	Nits after PR 10051 merge (#10159) ... Signed-off-by: Marco Pracucci <marco@pracucci.com> Co-authored-by: Marco Pracucci <marco@pracucci.com>	3 years ago
Ganesh Vernekar	129ed4ec8b	Fix Example() function in TSDB (#10153) ... * Fix Example() function in TSDB Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Fix tests Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
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>	3 years ago