Optimize availability and performance by following the guidelines in this section
- Pivotal recommends the use of ext4 filesystems when operating on Linux
platforms. The ext4 filesystem supports preallocation, which benefits disk
startup performance. If you are using ext3 filesystems in latency-sensitive
environments with high write throughput, you can improve disk startup
performance by setting the MAXLOGSIZE property of a disk store to a value lower
than the default 1 GB (see CREATE DISKSTORE), or by using the system property
gemfire.preAllocateDisk=false to disable preallocation (see
Preventing Disk Full Errors).
- When you start your system, start all the members
that have persistent tables roughly at the same time. Create and use startup
scripts for consistency and completeness.
- Shut down your system using the
gfxd shut-down-all command. This is an ordered shutdown
that shuts down all data stores and accessors, but leaves locators running. When
shutting down an entire system, a locator should be the last member to shut down
(after all data stores have successfully stopped).
- Decide on a file compaction policy and,
if needed, develop procedures to monitor your files and execute regular
- Decide on a backup strategy for your
disk stores and follow it. You can back up by copying the files while the system
is offline, or you can back up an online system using the gfxd
- If you drop or alter any persistent
table while your disk store is offline, consider synchronizing the tables in
your disk stores.