Introduction Persistent Hash Map Persistent Transactional Data Structures Live Demonstration ReferencesIntroduction Persistent Hash Map Persistent Transactional Data Structures Live Demonstration References References Overview Introduction Persistent Memory Use-Cases Pitfalls Persistent Hash Map Design Goals and Methodology Persistence Performance Results Persistent Transactional Data Structures Design Demonstration A Persistent Hash Map for Graph Processing Workloads and a Methodology for Persistent Transactional Data Structures 2IntroductionIntroduction Persistent Hash Map Persistent Transactional Data

history 的数据是由 master 的专用进程 fts 负责维护的。 3) Persistent table 如：gp_persistent_database_node、gp_persistent_filespace_ node、gp_persistent_relation_node、gp_persistent_tablespace_ node。 这类系统表同样是存在于每一个数据库实例中。在每个实例内， op table/alter table 等。 3) persistent table 问题，这类问题往往比较棘手，影响也比较大。 依据 gpcheckcat 的检查结果，必须把 persistent table 以外的所有 问题修复完之后，才可以着手处理 persistent table 的问题。 针对 persistent table 再展开讲述几种问题的处理技巧： 1) 报错的 not match maximum free order number 258, for 'gp_persistent_relation_ node' 该错误可能会导致实例启动失败，数据库实例恢复失败等情况。首 先可在问题的实例（postgresql.conf）中设置参数 gp_persistent_ skip_free_list=true。 让 出 问 题 的 实 例 先 启 动 起 来， 再

的持久性存储 4.4. 使用 CINDER 的持久性存储 4.5. 使用 FIBRE CHANNEL 持久性存储 4.6. 使用 FLEXVOLUME 的持久性存储 4.7. 使用 GCE PERSISTENT DISK 的持久性存储 4.8. 使用 HOSTPATH 的持久性存储 4.9. 使用 ISCSI 的持久性存储 4.10. 使用本地卷的持久性存储 4.11. 使用 NFS 的持久性存储 persistentVolumeReclaimPolicy: Retain 4 ... status: ... OpenShift Container Platform 4.8 存 存储 储 12 GCE Persistent Disk HostPath iSCSI 本地卷 NFS OpenStack Manila OpenShift Container Storage VMware vSphere - - Azure File � � � Azure Disk � - - Cinder � - - Fibre Channel � � - GCE Persistent Disk � - - HostPath � - - iSCSI � � - 本地卷 � - - NFS � � � OpenStack Manila

Kubernetes Cluster on the Dell EMC PowerFlex family and the integration of PowerFlex CSI driver 1.4 for persistent volume, for customers requiring an on-premises container platform solution. This white paper provides capabilities such as auto scaling, security, and management of containerized applications. A persistent and stable data store is required to run containerized applications within a Kubernetes cluster Kubernetes Engine on a PowerFlex cluster and the use of the PowerFlex CSI 1.4 driver to provision persistent storage for Kubernetes managing containerized applications. This white paper also describes how

store task metadata and return values: CELERY_RESULT_BACKEND = "amqp" The AMQP backend is non-persistent by default, and you can only fetch the result of a task once (as it’s sent as a message). For you want to use to process work in parallel (the CELERY_CONCURRENCY setting), and we could use a persistent result store backend, but for now, this should do. For all of the options available, see Configuration options Workers Guide Starting the worker Stopping the worker Restarting the worker Concurrency Persistent revokes Time limits Max tasks per child setting Remote control Inspecting workers Periodic Tasks

的持久性存储 4.4. 使用 CINDER 的持久性存储 4.5. 使用 FIBRE CHANNEL 持久性存储 4.6. 使用 FLEXVOLUME 的持久性存储 4.7. 使用 GCE PERSISTENT DISK 的持久性存储 4.8. 使用 ISCSI 的持久性存储 4.9. 使用 NFS 的持久性存储 4.10. RED HAT OPENSHIFT DATA FOUNDATION 4 挂载到磁盘时使用指定的挂载选项。 以下 PV 类型支持挂载选项： AWS Elastic Block Store (EBS) Azure Disk Azure File Cinder GCE Persistent Disk iSCSI 本地卷 NFS Red Hat OpenShift Data Foundation（仅限 Ceph RBD） VMware vSphere 注意 注意 Fibre OpenShift Container Platform 集群间共享。持久性卷声明是针对某个项目或者命名空间 的，相应的用户可请求它。您可以定义 KMS 密钥来加密 AWS 上的 container-persistent 卷。默认情况 下，新创建的使用 OpenShift Container Platform 版本 4.10 和更高版本的集群使用 gp3 存储和 AWS EBS CSI 驱动程序。 重要 重要

store task metadata and return values: CELERY_RESULT_BACKEND = "amqp" The AMQP backend is non-persistent by default, and you can only fetch the result of a task once (as it’s sent as a message). For you want to use to process work in parallel (the CELERY_CONCURRENCY setting), and we could use a persistent result store backend, but for now, this should do. For all of the options available, see Configuration options Workers Guide Starting the worker Stopping the worker Restarting the worker Concurrency Persistent revokes Time limits Max tasks per child setting Remote control Inspecting workers Periodic Tasks

transient (non-persistent) by default, so the results will disappear if the broker restarts. You can configure the result backend to send persistent messages using the CELERY_RESULT_PERSISTENT setting. Database All worker nodes keeps a memory of revoked task ids, either in-memory or persistent on disk (see Persistent revokes). When a worker receives a revoke request it will skip executing the task -64a66b88a618', ]) The GroupResult.revoke method takes advantage of this since version 3.1. Persistent revokes Revoking tasks works by sending a broadcast message to all the workers, the workers then

transient (non-persistent) by default, so the results will disappear if the broker restarts. You can configure the result backend to send persistent messages using the CELERY_RESULT_PERSISTENT setting. Database All worker nodes keeps a memory of revoked task ids, either in-memory or persistent on disk (see Persistent revokes). When a worker receives a revoke request it will skip executing the task e-64a66b88a618', ]) The GroupResult.revoke method takes advantage of this since version 3.1. Persistent revokes Revoking tasks works by sending a broadcast message to all the workers, the workers then

store task metadata and return values: CELERY_RESULT_BACKEND = "amqp" The AMQP backend is non-persistent by default, and you can only fetch the result of a task once (as it’s sent as a message). For you want to use to process work in parallel (the CELERY_CONCURRENCY setting), and we could use a persistent result store backend, but for now, this should do. For all of the options available, see Configuration options Workers Guide Starting the worker Stopping the worker Restarting the worker Concurrency Persistent revokes Time limits Max tasks per child setting Remote control Inspecting workers Periodic Tasks