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[HDFS-4508] Two minor improvements to the QJM Deployment docs - HDFS - [issue]
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...Suggested by ML user Azurry, the docs at http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/HDFSHighAvailabilityWithQJM.html#Deployment_details can be improved for two specif...
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http://issues.apache.org/jira/browse/HDFS-4508
Author: Harsh J,
2013-02-21, 13:47
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Re: How to test Hadoop MapReduce under another File System NOT HDFS - HDFS - [mail # user]
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...Hi Ling, On Thu, Feb 21, 2013 at 6:42 PM, Ling Kun wrote: We have several unit tests under HDFS sources (you can view it in the sources) which catch quite a bit of regressi...
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Author: Harsh J,
2013-02-21, 13:23
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Re: ISSUE :Hadoop with HANA using sqoop - HDFS - [mail # user]
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...The error is truncated, check the actual failed task's logs for complete info: Caused by: com.sap… what? Seems more like a SAP side fault than a Hadoop side one and you should as...
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Author: Harsh J,
2013-02-21, 06:33
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Re: About Hadoop Deb file - HDFS - [mail # user]
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...Try the debs from the Apache Bigtop project 0.3 release, its a bit of an older 1.x release but the debs would work well: http://archive.apache.org/dist/incubator/bigtop/bigtop-0.3.0-incubati...
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Author: Harsh J,
2013-02-21, 05:40
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Re: Topology script frequency - HDFS - [mail # user]
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...NN refers to the rack topology script/class when a new node joins (i.e. it doesn't have the node's IP already in cache), when it starts up, and (I think) also when you issue -refreshNodes. &...
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Author: Harsh J,
2013-02-20, 20:23
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Re: copy chunk of hadoop output - HDFS - [mail # user]
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...Hi JM, I am not sure how "dangerous" it is, since we're using a pipe here, and as you yourself note, it will only last as long as the last bytes have been got and then terminate. ...
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Author: Harsh J,
2013-02-20, 18:39
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Re: Trouble in running MapReduce application - HDFS - [mail # user]
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...Oops. I just noticed Hemanth has been answering on a dupe thread as well. Lets drop this thread and carry on there :) On Tue, Feb 19, 2013 at 11:14 PM, Harsh J wrote: &nbs...
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Author: Harsh J,
2013-02-19, 17:45
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Re: Namenode failures - HDFS - [mail # user]
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...Hi Robert, Are you by any chance adding files carrying unusual encoding? If its possible, can we be sent a bundle of the corrupted log set (all of the dfs.name.dir contents) to inspect...
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Author: Harsh J,
2013-02-17, 23:08
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Re: How to monitor HDFS upgrade status after removal of "dfsadmin -upgradeProgress status" command? - HDFS - [mail # dev]
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...Hi Scott, Is your goal to monitor the metadata upgrade? It can be checked on the web UI. Before finalization, you can see a message on the top banner on the NN frontpage such as:...
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Author: Harsh J,
2013-02-17, 19:49
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Re: executing hadoop commands from python? - HDFS - [mail # user]
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...Instead of 'scraping' this way, consider using a library such as Pydoop (http://pydoop.sourceforge.net) which provides pythonic ways and APIs to interact with Hadoop components. There are al...
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Author: Harsh J,
2013-02-17, 14:09
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