CurveBS I/O processing flow Before introducing IO processing flow, we first describe the overall architecture, data organization and topology structure of CURVE. CurveBS uses the central sockets. l Nebdserver: Accepts requests from NEBDClient and calls Curve Client for corresponding processing. it can receive requests from different NEBDClients.3. Through the above splitting, NebdClient NebdClient replaces Curve Client and directly interfaces with upper services. There is no logical processing in NEBDClient, it just proxy requests and has limited retries, which ensuring that NEBDClient

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308 25 Multi-processing and Distributed Computing 310 25.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373CONTENTS vi 29.7 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 374 29.8 Debugging and profiling . . . . . . . . . . . 445 35 Workflow Tips 446 35.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446 35.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308 25 Multi-processing and Distributed Computing 310 25.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373CONTENTS vi 29.7 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 374 29.8 Debugging and profiling . . . . . . . . . . . 445 35 Workflow Tips 446 35.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446 35.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 26 Multi-processing and Distributed Computing 329 26.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 30.7 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 397 30.8 Debugging and profiling . time . . . . . . . . . 476 36 Workflow Tips 479 36.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479 36.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 26 Multi-processing and Distributed Computing 329 26.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 30.7 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 397 30.8 Debugging and profiling . time . . . . . . . . . 476 36 Workflow Tips 479 36.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479 36.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327 26 Multi-processing and Distributed Computing 329 26.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 30.7 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 397 30.8 Debugging and profiling . time . . . . . . . . . 476 36 Workflow Tips 479 36.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 479 36.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 26 Multi-processing and Distributed Computing 332 26.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 30.8 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 401 30.9 Debugging and profiling . . . . . . . . . . . 483 36 Workflow Tips 490 36.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490 36.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 26 Multi-processing and Distributed Computing 333 26.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401 30.8 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 402 30.9 Debugging and profiling . . . . . . . . . . . 484 36 Workflow Tips 491 36.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 491 36.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 26 Multi-processing and Distributed Computing 332 26.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 30.8 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 401 30.9 Debugging and profiling . . . . . . . . . . . 483 36 Workflow Tips 490 36.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490 36.2 Browser-based workflow . . . . . . . . . . . . . .

of Finalizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 26 Multi-processing and Distributed Computing 332 26.1 Code Availability and Loading Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 30.8 System and Package Image Building . . . . . . . . . . . . . . . . . . . . . . . . . . 401 30.9 Debugging and profiling . . . . . . . . . . . 483 36 Workflow Tips 490 36.1 REPL-based workflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490 36.2 Browser-based workflow . . . . . . . . . . . . . .