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https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsuyoshi OZAWA updated HDFS-5167:
---------------------------------
Attachment: HDFS-5167.10.patch
Thank you for reviewing, [~jingzhao]. Updated a patch based on your review
comment:
1. Changed name of RetryCacheMetrics(added prefix "RetryCache:").
2. Added "if (LOG.isDebugEnabled())" in the constructor of RetryCacheMetrics.
I have a question about the your point 2. Currenty we need to setup HA use
LossyRetryInvocationHandler. Do you have setting file to enable
LossyRetryInvocationHandler?
{code}
LOG.warn("Currently creating proxy using " +
"LossyRetryInvocationHandler requires NN HA setup");
{code}
> Add metrics about the NameNode retry cache
> ------------------------------------------
>
> Key: HDFS-5167
> URL: https://issues.apache.org/jira/browse/HDFS-5167
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, namenode
> Affects Versions: 3.0.0, 2.4.0
> Reporter: Jing Zhao
> Assignee: Tsuyoshi OZAWA
> Priority: Minor
> Attachments: HDFS-5167.1.patch, HDFS-5167.10.patch,
> HDFS-5167.2.patch, HDFS-5167.3.patch, HDFS-5167.4.patch, HDFS-5167.5.patch,
> HDFS-5167.6.patch, HDFS-5167.6.patch, HDFS-5167.7.patch, HDFS-5167.8.patch,
> HDFS-5167.9-2.patch, HDFS-5167.9.patch
>
>
> It will be helpful to have metrics in NameNode about the retry cache, such as
> the retry count etc.
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