[
https://issues.apache.org/jira/browse/HADOOP-19613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18009470#comment-18009470
]
ASF GitHub Bot commented on HADOOP-19613:
-----------------------------------------
anmolanmol1234 commented on code in PR #7801:
URL: https://github.com/apache/hadoop/pull/7801#discussion_r2227556210
##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/ReadBufferManagerV1.java:
##########
@@ -39,28 +33,39 @@
* The Read Buffer Manager for Rest AbfsClient.
* V1 implementation of ReadBufferManager.
*/
-final class ReadBufferManagerV1 implements ReadBufferManager {
- private static final Logger LOGGER = LoggerFactory.getLogger(
- ReadBufferManagerV1.class);
- private static final int ONE_KB = 1024;
- private static final int ONE_MB = ONE_KB * ONE_KB;
+final class ReadBufferManagerV1 extends ReadBufferManager {
private static final int NUM_BUFFERS = 16;
private static final int NUM_THREADS = 8;
- private static final int DEFAULT_THRESHOLD_AGE_MILLISECONDS = 3000; // have
to see if 3 seconds is a good threshold
+ private static final int DEFAULT_THRESHOLD_AGE_MILLISECONDS = 3000;
Review Comment:
All the configs in this class should come from configurationKeys
> ABFS: [ReadAheadV2] Refactor ReadBufferManager to isolate new code with the
> current working code
> ------------------------------------------------------------------------------------------------
>
> Key: HADOOP-19613
> URL: https://issues.apache.org/jira/browse/HADOOP-19613
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.5.0, 3.4.1
> Reporter: Anuj Modi
> Assignee: Anuj Modi
> Priority: Major
> Labels: pull-request-available
>
> Read Buffer Manager used today was introduced way back and has been stable
> for quite a while.
> Read Buffer Manager to be introduced as part of
> https://issues.apache.org/jira/browse/HADOOP-19596 will introduce many
> changes incrementally over time. While the development goes on and we are
> able to fully stabilise the optimized version we need the current flow to be
> functional and undisturbed.
> This work item is to isolate that from new code by refactoring
> ReadBufferManager class to have 2 different implementations with same public
> interfaces: ReadBufferManagerV1 and ReadBufferManagerV2.
> This will also introduce new configs that can be used to toggle between new
> and old code.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
