## A Multithreaded, Transaction-Based Locking Strategy for Containers Bob Steagall CppCon 2020 KEWB COMPUTING ## Overview • Sharing a container among multiple threads • A motivating problem • Some modification of an update group is treated as a single transaction, which either succeeds completely, or fails completely - Consistent: Each transaction can only bring the update group (and the enclosing enclosing container) from one valid state to another, maintaining all invariants - Isolated: Each transaction must ensure that concurrent execution of other transactions leaves its update group (and the container)

## GPU Resource Management On JDOS 梁永清 liangyongqing1@jd.com ## 提供的服务 ## Experiment ## Training 1. 用于实验的 GPU 容器 2. 基于 Kubeflow 的机器学习训练服务 3. 模型管理和模型 Serving 服务 ## Serving 均基于容器，不对业务方直接提供 GPU 物理机

## +24 ## Back To Basics Lifetime Management ## PHIL NASH ## 20 24 September 15 - 20 ## C++ is complex  mostly for historical sonarsource.com/blog/beyond-the-rules-of-three-five-and-zero/ ## +24 ## Back To Basics Lifetime Management ## PHIL NASH ## 20 24 September 15 - 20

24. June # Secrets Management at Scale with Vault & Rancher  Bastian Hofman Senior Field Engineer SUSE bastian.hofmann@suse Operations & Infrastructure Management (Run & Manage) K8s Version Management GitOps Continuous Delivery Cluster Templates & Config Enforcement Node Pool Management RBAC, OPA, Pod & Network Network Policies Cluster Provisioning & Lifecycle Management  kubernetes ![Image](/uploads/documents/4/7/a/c/47acf68

## Node Operator: Kubernetes Node Management Made Simple 陈俊(Joe)，Ant Financial ## Agenda • Background and Motivation • Introduction of Operators • Node-Operator • Advanced Topic: Kube-on-Kube-Operator Master & Node Components reliably • Canary Rollout • Master & Node Component Versions Management  Worker Order Complicated architecture Work order deployment system can not meet the requirements of resource management. ## Operator 

Toward Standard C++ Dependency Management ## BILL HOFFMAN & BRET BROWN ## 20 23 October 01 - 06 ## Libraries: A First Step Toward Standard C++ Dependency Management October 3, 2023 Bloomberg Engineering portable as the code they contain! ✓ Projects should be “cattle,” not “pets”! ## Why dependency management? Consensus: Managing dependencies == way too hard Q: Which of these do you find frustrating about following names: jsonlogConfig.cmake Jsonlog-config.cmake # ... CMake gives you some dependency management tips here ... Aside: Coloring and bolding added for emphasis ## Motivation: What would we design

# CS 591 K1: Data Stream Processing and Analytics Spring 2020 2/25: State Management Vasiliki (Vasia) Kalavri vkalavri@bu.edu ## State in dataflow computations Any non-trivial streaming computation 3cea6fb1/p4_2.jpg) What state types can you think of? • Count, sum, list, map, ... ## State management in Apache Flink All data maintained by a task and used to compute results: a local or instance state is stored, accessed, and maintained. State backends are responsible for: • local state management - checkpointing state to remote and persistent storage, e.g. a distributed filesystem or a database

• Run-time database configuration • Dynamically defining a database • Connection Management • Connection Pooling • Framework Integration • Executing Queries • Managing Bulk Inserts Transactions Context manager Decorator • Nesting Transactions • Explicit transaction • Autocommit Mode • Changes in 3.0 • Backwards-incompatible • New stuff • API so if the username is taken the database will raise an IntegrityError. try: with database.transaction(): # Attempt to create the user. If the username is taken, due to the unique constraint

"SpringTestContext" group anymore (for ease of using custom groups) Package org.springframework.transaction * added "validateExistingTransaction" property to AbstractPlatformTransactionManager, for throws TransactionSystemException in case of unexpected internal transaction state * JtaTransactionManager detects JBoss 4.2 transaction rollbacks caused by a timeout, throwing a meaningful exception * * fixed WebSphereUowTransactionManager to correctly detect an existing global transaction (ignoring local tx contexts) Package org.springframework.ui * fixed ModelMap's "mergeAttributes" to

springframework.orm * iBATIS support works correctly with "useTransactionAwareDataSource" and JTA transaction resume with subsequent access * added overloaded query/insert/update/delete operations without OpenSessionInViewFilter * reworked Hibernate JTA transaction synchronization to expose "beforeCompletion" exceptions to the caller * Hibernate JTA transaction synchronization does not call "setRollbackOnly" ends a started transaction earl if "onSetupInTransaction" fails * AbstractTransactionalSpringContextTests only tries to end transaction on "tearDown" if the transaction is still active