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Use the new symDB package #770
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* Introduce stacktrace partition This determines the partition of a particular profile, by looking first at its metadata: * If there is a `Filename` on the main mapping use its filepath.Base(Filename) * Failing that take the externally supplied `service_name` * Fallback to `unknown` Take the underlying string value and hash. * After a chat with cyril we decided to not longer mod and use the hash straight away. We don't wanted to risk the collisions of two very big stacktrace applications.
cyriltovena
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Jun 26, 2023
* Increase parquet writer PageBufferSize * reduce by 2 page buffer size * Introduce symdb * Add chunk format description * Add chunk format description * Improve naming * Implement stack trace appender * Limit chunk by number of nodes * Stacktrace ID is uint32 * Add in-memory stacktrace resolver * Add writer * Add writer * Fix stacktrace resolver * Single pass write * Index file refactoring * Fixes, improvements, notes * Ignore empty stacktraces * Fix chunk boundary check * Fix tests * Store chunk headers sorted * Make chunk index explicit * Add file reader * Use group varint encoding * Refine stacktrace tree * Stacktrace tree race condition elimination * Remove unused stacktracesResolve.do * Better nil coalescence in stack trace appender * Format imports * Use the new symDB package (#770) * Ingest stacktraces in the new symdb * Setup read in memory read path * Fix up a comment placement * Start setting up the read path * Update to uint32 * Introduce stacktrace partition (#775) * Introduce stacktrace partition This determines the partition of a particular profile, by looking first at its metadata: * If there is a `Filename` on the main mapping use its filepath.Base(Filename) * Failing that take the externally supplied `service_name` * Fallback to `unknown` Take the underlying string value and hash. * After a chat with cyril we decided to not longer mod and use the hash straight away. We don't wanted to risk the collisions of two very big stacktrace applications. * Remove reconstructMeta from singleBlockQuerier * support multiple versions of stacktraces resolver * Integrate v2 reader for stacktraces in block reader * Fixes tests * Rewrite locations Ids * Rewrite test for counting uniq stacktraces * lint and fmt * Fixes more tests * Fixes leftover from todo --------- Co-authored-by: Christian Simon <simon@swine.de> * Use prefixed bucket for symbols * Initialize locationsIdsByStacktraceID * Initialize locationsIdsByStacktraceID for pprof as well * Fix chunk headers sort * Inline node alloc * Mapping filename extraction * Tidy go.mod * Fix TestHeadIngestStacktraces * Use symdb.DefaultDirName * Sort mappings on write * Make column iterator to respect the context * Fix unexpected EOF on stacktrace chunk unmarshal * Fix symbols upload * Fix symbols upload * Release fetched data * 3MB Page Buffer Size * Sort stacktraces IDs as expected by the resolver --------- Co-authored-by: Cyril Tovena <cyril.tovena@gmail.com> Co-authored-by: Christian Simon <simon@swine.de>
simonswine
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Jun 30, 2023
* Increase parquet writer PageBufferSize * reduce by 2 page buffer size * Introduce symdb * Add chunk format description * Add chunk format description * Improve naming * Implement stack trace appender * Limit chunk by number of nodes * Stacktrace ID is uint32 * Add in-memory stacktrace resolver * Add writer * Add writer * Fix stacktrace resolver * Single pass write * Index file refactoring * Fixes, improvements, notes * Ignore empty stacktraces * Fix chunk boundary check * Fix tests * Store chunk headers sorted * Make chunk index explicit * Add file reader * Use group varint encoding * Refine stacktrace tree * Stacktrace tree race condition elimination * Remove unused stacktracesResolve.do * Better nil coalescence in stack trace appender * Format imports * Use the new symDB package (grafana/phlare#770) * Ingest stacktraces in the new symdb * Setup read in memory read path * Fix up a comment placement * Start setting up the read path * Update to uint32 * Introduce stacktrace partition (grafana/phlare#775) * Introduce stacktrace partition This determines the partition of a particular profile, by looking first at its metadata: * If there is a `Filename` on the main mapping use its filepath.Base(Filename) * Failing that take the externally supplied `service_name` * Fallback to `unknown` Take the underlying string value and hash. * After a chat with cyril we decided to not longer mod and use the hash straight away. We don't wanted to risk the collisions of two very big stacktrace applications. * Remove reconstructMeta from singleBlockQuerier * support multiple versions of stacktraces resolver * Integrate v2 reader for stacktraces in block reader * Fixes tests * Rewrite locations Ids * Rewrite test for counting uniq stacktraces * lint and fmt * Fixes more tests * Fixes leftover from todo --------- Co-authored-by: Christian Simon <simon@swine.de> * Use prefixed bucket for symbols * Initialize locationsIdsByStacktraceID * Initialize locationsIdsByStacktraceID for pprof as well * Fix chunk headers sort * Inline node alloc * Mapping filename extraction * Tidy go.mod * Fix TestHeadIngestStacktraces * Use symdb.DefaultDirName * Sort mappings on write * Make column iterator to respect the context * Fix unexpected EOF on stacktrace chunk unmarshal * Fix symbols upload * Fix symbols upload * Release fetched data * 3MB Page Buffer Size * Sort stacktraces IDs as expected by the resolver --------- Co-authored-by: Cyril Tovena <cyril.tovena@gmail.com> Co-authored-by: Christian Simon <simon@swine.de>
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