2016Postgres中国用户大会 Postgres Conference China 2016 中国用户大会 Polymorphic Storage™ User Definable Storage Layout  Row oriented faster when returning all columns  HEAP for many updates and deletes  Use indexes

Segment Failover and Recovery 231 Example Segment Host Hardware Stack 231 Example Segment Disk Layout 232 The Interconnect 232 VMware Greenplum v6.18 Documentation VMware, Inc. 8 Interconnect Redundancy CPU core. Figure 3. Example Greenplum Database Segment Host Configuration Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system logical disk drive to use groups of physical disks arranged in RAID arrays. Figure 4. Logical Disk Layout in Greenplum Database Depending on the hardware platform you choose, different RAID configurations

Segment Failover and Recovery 238 Example Segment Host Hardware Stack 239 Example Segment Disk Layout 239 The Interconnect 240 Interconnect Redundancy 240 Network Interface Configuration 240 Switch CPU core. Figure 3. Example Greenplum Database Segment Host Configuration Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system arranged in RAID arrays. VMware Greenplum v6.19 Documentation VMware, Inc. 238 Figure 4. Logical Disk Layout in Greenplum Database Depending on the hardware platform you choose, different RAID configurations

Segment Failover and Recovery 165 Example Segment Host Hardware Stack 165 Example Segment Disk Layout 166 The Interconnect 166 Interconnect Redundancy 167 Network Interface Configuration 167 Switch CPU core. Figure 3. Example Greenplum Database Segment Host Configuration Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system logical disk drive to use groups of physical disks arranged in RAID arrays. Figure 4. Logical Disk Layout in Greenplum Database Depending on the hardware platform you choose, different RAID configurations

Segment Failover and Recovery 158 Example Segment Host Hardware Stack 158 Example Segment Disk Layout 159 About the Greenplum Interconnect 160 Interconnect Redundancy 160 Network Interface Configuration segment instance (or primary/mirror pair if using mirroring) per CPU core. Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system its in-memory representation. It can be accelerated by creating a function specific to the table layout and the number of columns to be extracted. VMware Greenplum 7 Documentation VMware by Broadcom

Segment Failover and Recovery 235 Example Segment Host Hardware Stack 236 Example Segment Disk Layout 237 The Interconnect 238 Interconnect Redundancy 238 Network Interface Configuration 238 Switch per CPU core. VMware Tanzu Greenplum v6.20 Documentation VMware, Inc. 235 Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system even across all these resources. The load is as fast as the slowest node. Skew in the load file layout will cause the overall load to bottleneck on that resource. The gp_external_max_segs configuration

Segment Failover and Recovery 306 Example Segment Host Hardware Stack 307 Example Segment Disk Layout 308 About the Greenplum Interconnect 309 Interconnect Redundancy 309 Network Interface Configuration mirroring) per CPU core. VMware Greenplum 6 Documentation VMware by Broadcom 307 Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system machine failure. There are different strategies for assigning mirrors to hosts. When choosing the layout of the primaries and mirrors, it is important to consider the failure scenarios to ensure that processing

Segment Failover and Recovery 238 Example Segment Host Hardware Stack 238 Example Segment Disk Layout 239 About the Greenplum Interconnect 240 Interconnect Redundancy 240 Network Interface Configuration segment instance (or primary/mirror pair if using mirroring) per CPU core. Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system machine failure. There are different strategies for assigning mirrors to hosts. When choosing the layout of the primaries and mirrors, it is important to consider the failure scenarios to ensure that processing

Segment Failover and Recovery 274 Example Segment Host Hardware Stack 275 Example Segment Disk Layout 276 About the Greenplum Interconnect 277 Interconnect Redundancy 277 Network Interface Configuration mirroring) per CPU core. VMware Greenplum 6 Documentation VMware, Inc 275 Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system machine failure. There are different strategies for assigning mirrors to hosts. When choosing the layout of the primaries and mirrors, it is important to consider the failure scenarios to ensure that processing

Segment Failover and Recovery 266 Example Segment Host Hardware Stack 267 Example Segment Disk Layout 268 About the Greenplum Interconnect 269 Interconnect Redundancy 269 Network Interface Configuration mirroring) per CPU core. VMware Tanzu Greenplum 6 Documentation VMware, Inc 267 Example Segment Disk Layout Each CPU is typically mapped to a logical disk. A logical disk consists of one primary file system machine failure. There are different strategies for assigning mirrors to hosts. When choosing the layout of the primaries and mirrors, it is important to consider the failure scenarios to ensure that processing