[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15360989#comment-15360989 ] He Xiaoqiao commented on HDFS-7858: --- hi [~asuresh] when i patch this to 2.7.1, it throws

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14906384#comment-14906384 ] Tsz Wo Nicholas Sze commented on HDFS-7858: --- Never mind. Thanks for the response

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14904584#comment-14904584 ] Arun Suresh commented on HDFS-7858: --- [~szetszwo], Unfortunately, I do not remember the sp

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14901642#comment-14901642 ] Tsz Wo Nicholas Sze commented on HDFS-7858: --- > ... then those clients might not g

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644543#comment-14644543 ] Hudson commented on HDFS-7858: -- FAILURE: Integrated in Hadoop-Mapreduce-trunk #2216 (See [htt

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644532#comment-14644532 ] Hudson commented on HDFS-7858: -- SUCCESS: Integrated in Hadoop-Mapreduce-trunk-Java8 #267 (See

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644432#comment-14644432 ] Hudson commented on HDFS-7858: -- FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #259 (See [htt

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644318#comment-14644318 ] Hudson commented on HDFS-7858: -- FAILURE: Integrated in Hadoop-Hdfs-trunk #2197 (See [https://

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644217#comment-14644217 ] Hudson commented on HDFS-7858: -- FAILURE: Integrated in Hadoop-Yarn-trunk #1000 (See [https://

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644206#comment-14644206 ] Hudson commented on HDFS-7858: -- FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #270 (See [htt

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643911#comment-14643911 ] Hudson commented on HDFS-7858: -- FAILURE: Integrated in Hadoop-trunk-Commit #8231 (See [https:

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643902#comment-14643902 ] Arun Suresh commented on HDFS-7858: --- Test Case error was due to a timing issue. Modified

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643869#comment-14643869 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643603#comment-14643603 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643339#comment-14643339 ] Jing Zhao commented on HDFS-7858: - Thanks for working on this, [~asuresh]! The latest patch

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14643102#comment-14643102 ] Arpit Agarwal commented on HDFS-7858: - I am +1 on the v11 patch. {{RequestHedgingProxyP

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641780#comment-14641780 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641570#comment-14641570 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641238#comment-14641238 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641067#comment-14641067 ] Jing Zhao commented on HDFS-7858: - bq. I need this to get name of the proxy which was succe

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640857#comment-14640857 ] Jing Zhao commented on HDFS-7858: - Thanks again for updating the patch, [~asuresh]! Some mi

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640395#comment-14640395 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640152#comment-14640152 ] Arun Suresh commented on HDFS-7858: --- bq. in case of failover of HA, only one request will

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640133#comment-14640133 ] Vinayakumar B commented on HDFS-7858: - I have a small question here. I believe all clie

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640114#comment-14640114 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14640012#comment-14640012 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14639890#comment-14639890 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14639676#comment-14639676 ] Jing Zhao commented on HDFS-7858: - bq. So, in the case of the ReqHedgingProxy, performFailo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14637663#comment-14637663 ] Arpit Agarwal commented on HDFS-7858: - Thanks for updating the patch Arun. The MultiExc

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14637494#comment-14637494 ] Jing Zhao commented on HDFS-7858: - Thanks for updating the patch, [~asuresh]! The current a

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14632744#comment-14632744 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14632690#comment-14632690 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14631806#comment-14631806 ] Arpit Agarwal commented on HDFS-7858: - Thanks [~asuresh], I will review your patch by n

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14630673#comment-14630673 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626969#comment-14626969 ] Arun Suresh commented on HDFS-7858: --- [~arpitagarwal], apologize for sitting on this... I

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626963#comment-14626963 ] Hadoop QA commented on HDFS-7858: - \\ \\ | (x) *{color:red}-1 overall{color}* | \\ \\ || Vo

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626950#comment-14626950 ] Arpit Agarwal commented on HDFS-7858: - Hi [~asuresh], were you thinking of posting an u

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14511949#comment-14511949 ] Chris Nauroth commented on HDFS-7858: - This is very interesting. Thanks for working on

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14388750#comment-14388750 ] Arun Suresh commented on HDFS-7858: --- Thanks for the review [~jingzhao]. bq. I'm thinking

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14387816#comment-14387816 ] Jing Zhao commented on HDFS-7858: - Thanks for working on this, [~asuresh]. One concern is

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14387190#comment-14387190 ] Arun Suresh commented on HDFS-7858: --- ping [~atm], [~jingzhao], [~bikassaha], Was wonderin

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14362020#comment-14362020 ] Arun Suresh commented on HDFS-7858: --- [~kasha], bq. one is not required to configure a fe

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14361536#comment-14361536 ] Karthik Kambatla commented on HDFS-7858: If possible, it would be nice to make the

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349609#comment-14349609 ] Hadoop QA commented on HDFS-7858: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14347533#comment-14347533 ] Arun Suresh commented on HDFS-7858: --- This testcase failure seems unrelated.. > Improve H

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14346880#comment-14346880 ] Hadoop QA commented on HDFS-7858: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14346668#comment-14346668 ] Hadoop QA commented on HDFS-7858: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14344503#comment-14344503 ] Jing Zhao commented on HDFS-7858: - bq. Optimistically try to connect to both configured NNs

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14344311#comment-14344311 ] Hadoop QA commented on HDFS-7858: - {color:red}-1 overall{color}. Here are the results of t

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14343889#comment-14343889 ] Aaron T. Myers commented on HDFS-7858: -- Hey folks, sorry to come into this discussion

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client using Zookeeper

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341849#comment-14341849 ] Bikas Saha commented on HDFS-7858: -- What are long lived client examples? How many such cli

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client using Zookeeper

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341411#comment-14341411 ] Arun Suresh commented on HDFS-7858: --- [~bikassaha], you make a very valid point. I guess

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client using Zookeeper

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341399#comment-14341399 ] Bikas Saha commented on HDFS-7858: -- bq. The client will proceed to connect to that NN firs

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client using Zookeeper

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341375#comment-14341375 ] Arun Suresh commented on HDFS-7858: --- [~kihwal], [~bikassaha], I understand your concerns

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client using Zookeeper

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341336#comment-14341336 ] Bikas Saha commented on HDFS-7858: -- We need to be careful about how many clients can be su

[jira] [Commented] (HDFS-7858) Improve HA Namenode Failover detection on the client using Zookeeper

[ https://issues.apache.org/jira/browse/HDFS-7858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14340846#comment-14340846 ] Kihwal Lee commented on HDFS-7858: -- ZK may not scale to support thousands of clients. I th