Lokesh Jain created HDDS-886:
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Summary: Unnecessary buffer copy in HddsDispatcher#dispatch
Key: HDDS-886
URL: https://issues.apache.org/jira/browse/HDDS-886
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: Ozone Datanode
Reporter: Lokesh Jain
Assignee: Lokesh Jain
Fix For: 0.4.0
In HddsDispatcher#dispatch precondition not null check converts container
command to a string object. This is done even for a write chunk command which
means we copy the chunk data to a string.
{code:java}
// code placeholderpublic ContainerCommandResponseProto dispatch(
ContainerCommandRequestProto msg) {
LOG.trace("Command {}, trace ID: {} ", msg.getCmdType().toString(),
msg.getTraceID());
Preconditions.checkNotNull(msg.toString());
{code}
The precondition needs to check only the msg.
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