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task_reader.go ×7

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unlabeled · c_41730b8235da

156 tests · 3403 LOC · 151 files · introduces 0 tests · 26 LOC · 2 files

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Code
8 ranges26 lines · 2 files
Tests
0 tests

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All code (extent)
538 ranges3403 lines · 151 files · Browse complete extent
All tests (intent)
156 testsBrowse complete intent

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Introduced tests

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Introduced code

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2 files ranked by introduced lines: 26 introduced LOC across 8 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

go.temporal.io/server/service/matching/task_reader.go 24 introduced LOC · 7 ranges

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147 case <-ctx.Done():
148 return
149 > default: task_reader.go
150 }
151
152 > select { task_reader.go
153 case <-ctx.Done():
154 return
155
156 > case <-tr.notifyC: task_reader.go
157 > batch, err := tr.getTaskBatch(ctx)
158 > tr.backlogMgr.signalIfFatal(err)
159 > if err != nil {
160 // TODO: Should we ever stop retrying on db errors?
161 if common.IsResourceExhausted(err) {
166 continue Loop
167 }
168 > tr.retrier.Reset() task_reader.go
169 >
170 > if len(batch.tasks) == 0 {
171 > tr.backlogMgr.taskAckManager.setReadLevelAfterGap(batch.readLevel)
172 > if !batch.isReadBatchDone {
173 tr.Signal()
174 }
175 > continue Loop task_reader.go
176 }
177
218 // Also return a number that can be used to update readLevel
219 // Also return a bool to indicate whether read is finished
220 > func (tr *taskReader) getTaskBatch(ctx context.Context) (*getTasksBatchResponse, error) { task_reader.go
221 > var tasks []*persistencespb.AllocatedTaskInfo
222 > readLevel := tr.backlogMgr.taskAckManager.getReadLevel()
223 > maxReadLevel := tr.backlogMgr.db.GetMaxReadLevel(subqueueZero)
224 >
225 > // counter i is used to break and let caller check whether taskqueue is still alive and needs to resume read.
226 > for i := 0; i < 10 && readLevel < maxReadLevel; i++ {
227 upper := min(readLevel+tr.backlogMgr.config.RangeSize, maxReadLevel)
228 tasks, err := tr.getTaskBatchWithRange(ctx, readLevel, upper)
240 readLevel = upper
241 }
242 > return &getTasksBatchResponse{ task_reader.go
243 > tasks: tasks,
244 > readLevel: readLevel,
245 > isReadBatchDone: readLevel == maxReadLevel,
246 > }, nil // caller will update readLevel when no task grabbed
247 }
248
go.temporal.io/server/service/matching/backlog_manager.go 2 introduced LOC · 1 range

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114 func (c *backlogManagerImpl) signalIfFatal(err error) bool {
115 if err == nil {
116 > return false backlog_manager.go
117 > }
118 var condfail *persistence.ConditionFailedError
119 if errors.As(err, &condfail) {

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