Change default volume type to io1 #135
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rishabh6788
requested review from
peterzhuamazon,
gaiksaya,
zelinh,
prudhvigodithi and
Divyaasm
as code owners
Signed-off-by: Rishabh Singh <sngri@amazon.com>
gaiksaya
approved these changes
Oct 3, 2024
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Description
We recently updated default volume type to
gp3. This caused regression in indexing latency forvectorsearchworkload.Upon debugging we realized that this is happening due to reduced disk throughput on gp3.
The default throughput for gp3 volume type is 125Mb/s, where as for gp2 it was 250Mb/s.
Setting the
throughputproperty in CDK code for gp3 volume didn't work as it is not currently supported out of the box, see aws/aws-cdk#24107. They have provided a work around which is not a clean way.Given OpenSearch is an IOPS heavy application it makes more sense to use the best available EBS volume type to get maximum performance.
IO1volume type requiresiopsproperty to be set and it is calculated based on disk size,IOPS=50*Disk size in GB. Seeio1in https://aws.amazon.com/ebs/volume-types/.Issues Resolved
List any issues this PR will resolve, e.g. Closes [...].
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