gpdb memory control

1 TODO VMem 2 Resource Group Control 2.1 Bypass 2.2 Fixed Mem 2.3 Memory Limit TODO 1 VMem 2 Resource Group Control ResourceGroupGetQueryMemoryLimit(void) 用于获取内存限制的绝对大小 (非百分比) 2.1 Bypass 绕开资源限制模式 Enabled when: gp_resource_group_bypass is true: guc_gp.c { {"gp_resource_group_bypass", PGC_USERSET, RESOURCES, gettext_noop("If the value is true, the query in...

GPDB: Configuring Your Systems

1 IP Fragmentation Settings 2 Networking 本文为摘录,原文为: https://docs.vmware.com/en/VMware-Tanzu-Greenplum/6/greenplum-database/GUID-install_guide-prep_os.html 1 IP Fragmentation Settings IP Fragmentation Settings When the Greenplum Database interconnect uses UDP (the default), the network interface card controls IP packet fragmentation and reassemblies. If the UDP message size is larger than the size of the maximum transmission unit (MTU) of a network, the IP layer fragments the message. (Refer to...

Greenplum 部署最佳实践: 网络篇

1 使用高速硬件,降低节点间的延迟 2 尽量降低网络中断的次数。 3 尽量提高每一个数据包的有效载荷 本文为摘录,原文为: attachments/pdf...

Greenplum 资源管理——Resource Group使用和实现分析

1 Resource Group 简介 2 Resource Group 使用 2.1 创建资源组 2.2 将资源组分配给角色 2.3 修改资源组配置 2.4 删除资源组 2.5 取消资源组中的正在运行或已排队的事务 3 Resource Group 监控 3.1 查看资源组...