Tsz-wo Sze created HDDS-2270:
--------------------------------
Summary: Avoid buffer copying in
ContainerStateMachine.loadSnapshot/persistContainerSet
Key: HDDS-2270
URL: https://issues.apache.org/jira/browse/HDDS-2270
Project: Hadoop Distributed Data Store
Issue Type: Improvement
Components: Ozone Datanode
Reporter: Tsz-wo Sze
Assignee: Tsz-wo Sze
ContainerStateMachine:
- In loadSnapshot(..), it first reads the snapshotFile to a byte[] and then
parses it to ContainerProtos.Container2BCSIDMapProto. The buffer copying can
be avoided.
{code}
try (FileInputStream fin = new FileInputStream(snapshotFile)) {
byte[] container2BCSIDData = IOUtils.toByteArray(fin);
ContainerProtos.Container2BCSIDMapProto proto =
ContainerProtos.Container2BCSIDMapProto
.parseFrom(container2BCSIDData);
...
}
{code}
- persistContainerSet(..) has similar problem.
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