[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jing Zhao updated HDFS-5167: Resolution: Fixed Fix Version/s: 2.4.0 Hadoop Flags: Reviewed Status: Resolved (was: Patch Available) Thanks for the great work, [~ozawa]! I've committed this to trunk, branch-2 and branch-2.4.0. 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, 2.3.0, 2.4.0 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Fix For: 2.4.0 Attachments: HDFS-5167.1.patch, HDFS-5167.10.patch, HDFS-5167.11.patch, HDFS-5167.12.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. -- This message was sent by Atlassian JIRA (v6.2#6252)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.12.patch Updated to refrect 1,2,3 comments by Jing. I appreciate if you can take a look, [~jingzhao]. 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, 2.3.0, 2.4.0 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.10.patch, HDFS-5167.11.patch, HDFS-5167.12.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. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jing Zhao updated HDFS-5167: Status: Patch Available (was: Open) 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: 2.3.0, 3.0.0, 2.4.0 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.10.patch, HDFS-5167.11.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. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.11.patch Rebased on trunk and added test with LossyRetryInvocationHandler. [~jingzhao], could you review patch? 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, 2.3.0, 2.4.0 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.10.patch, HDFS-5167.11.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. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[
https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
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.
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Status: Open (was: Patch Available) 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.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.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.9-2.patch I cannot reproduce the problem, so re-attached a patch rebased on the current trunk. 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.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. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Affects Version/s: 2.4.0 Status: Patch Available (was: Open) 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-5167.2.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. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.9.patch Rebased on a latest branch. [~jingzhao], I appreciate if you have a chance to look this patch. 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.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.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message was sent by Atlassian JIRA (v6.1.5#6160)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.6.patch TestMetricsSystemImpl's test failure looks unrelated to me. Test again with the same patch. 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.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 It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message was sent by Atlassian JIRA (v6.1#6144)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.7.patch I attached wrong patches for last 2 times. I apologize for this. 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.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 It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message was sent by Atlassian JIRA (v6.1#6144)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Akira AJISAKA updated HDFS-5167: Attachment: HDFS-5167.8.patch Attaching the revised patch. 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.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 It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message was sent by Atlassian JIRA (v6.1#6144)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.6.patch Updated a patch based on Jing's review comment. 1. Added @InterfaceAudience.Private annotation to RetryCacheMetrics class. 2. Cleared RetryCacheMetrics' import section. 3. Changed RetryCache for FSNamesystem to NameNode, then the metrics name is RetryCacheNameNode. 4. Put an instance RetryCacheMetrics inside RetryCache's methods. All metrics are updated when RetryCache#set is accessed. 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.2.patch, HDFS-5167.3.patch, HDFS-5167.4.patch, HDFS-5167.5.patch, HDFS-5167.6.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message was sent by Atlassian JIRA (v6.1#6144)
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jing Zhao updated HDFS-5167: Assignee: Tsuyoshi OZAWA 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 Reporter: Jing Zhao Assignee: Tsuyoshi OZAWA Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.2.patch, HDFS-5167.3.patch, HDFS-5167.4.patch, HDFS-5167.5.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.5.patch Fixed to pass broken tests about secondary namenode. 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 Reporter: Jing Zhao Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.2.patch, HDFS-5167.3.patch, HDFS-5167.4.patch, HDFS-5167.5.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.4.patch Updated to pass tests. 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 Reporter: Jing Zhao Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.2.patch, HDFS-5167.3.patch, HDFS-5167.4.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.2.patch Added RetryCacheMetrics. This patch doesn't contain tests, in fact. I've tried to implement tests with HDFS-5118's commit, but it only supports to tests in an environment which NN HA setup. [~jingzhao], do you have ideas to support HDFS-5118 in enviroments without NN HA setup? 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 Reporter: Jing Zhao Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.2.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.3.patch Previous patch included needless member RetryCache#counter wrongly, so it's removed. 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 Reporter: Jing Zhao Priority: Minor Attachments: HDFS-5167.1.patch, HDFS-5167.2.patch, HDFS-5167.3.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Target Version/s: 3.0.0 Status: Patch Available (was: Open) 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 Reporter: Jing Zhao Assignee: Jing Zhao Priority: Minor Attachments: HDFS-5167.1.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsuyoshi OZAWA updated HDFS-5167: - Attachment: HDFS-5167.1.patch Add 2 metrics : RetryCacheHit and RetryCacheUpdated. 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 Reporter: Jing Zhao Assignee: Jing Zhao Priority: Minor Attachments: HDFS-5167.1.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (HDFS-5167) Add metrics about the NameNode retry cache
[ https://issues.apache.org/jira/browse/HDFS-5167?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jing Zhao updated HDFS-5167: Assignee: (was: Jing Zhao) 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 Reporter: Jing Zhao Priority: Minor Attachments: HDFS-5167.1.patch It will be helpful to have metrics in NameNode about the retry cache, such as the retry count etc. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
