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IOException in offerService - HDFS - [mail # dev]
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...DataNode may received IOException in heartbeat sending process. When running TestStartup, I got the following warn log: 2012-11-13 01:28:19,217 WARN datanode.DataNode (BPServiceA...
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Author: Yanbo Liang,
2012-11-13, 10:51
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Re: The lease hard limit is 1 hour and in another client want to append to a file need to wait for 1 hour? - HDFS - [mail # dev]
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...The answer is useful, thanks to all of you. 2012/10/18 Uma Maheswara Rao G ...
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Author: Yanbo Liang,
2012-10-18, 09:47
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The lease hard limit is 1 hour and in another client want to append to a file need to wait for 1 hour? - HDFS - [mail # dev]
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...The lease hard limit is 1 hour, is it means that if one file hold the lease and exit without release it and then another file want to append to the same file will to wait for a hour?...
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Author: Yanbo Liang,
2012-10-18, 08:44
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[HDFS-3772] HDFS NN will hang in safe mode and never come out if we change the dfs.namenode.replication.min bigger. - HDFS - [issue]
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...If the NN restarts with a new minimum replication (dfs.namenode.replication.min), any files created with the old replication count will expected to bump up to the new minimum upon restart au...
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http://issues.apache.org/jira/browse/HDFS-3772
Author: Yanbo Liang,
2012-08-16, 04:24
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Re: Number of concurrent writer to HDFS - HDFS - [mail # user]
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...I think there is no distinct limitation at the number of files one can write to at the same time. Because each write stream is out to corresponding DataNodes which are different most likely....
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Author: Yanbo Liang,
2012-08-07, 06:53
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Re: Number of concurrent writer to HDFS - HDFS - [mail # user]
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...You can use scribe or flume to collect log data and integrated with hadoop. 2012/8/4 Nguyen Manh Tien ...
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Author: Yanbo Liang,
2012-08-06, 06:14
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[HDFS-3748] TestDFSUtil#testHANameNodesWithFederation failed because of misuse toString to generate hostname:port - HDFS - [issue]
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...In the test case TestDFSUtil#testHANameNodesWithFederation, it misused InetSocketAddress.toString() to generate hostname:port format data. It cause the following assert failure when run this...
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http://issues.apache.org/jira/browse/HDFS-3748
Author: Yanbo Liang,
2012-08-02, 06:50
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Re: S3 listStatus on a directory return the directory itself as a file - HDFS - [mail # user]
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...I think there is no distinguish between directory and file in the Filesystem implementation. So you got the two file status, one is a directory and another one is ordinary file. 2012/7...
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Author: Yanbo Liang,
2012-07-26, 11:06
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Re: problem configuring hadoop with s3 bucket - HDFS - [mail # user]
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...The S3 storage layer is at the same level with HDFS. So if you configure to use S3, it's irrational to occur the HDFS related logs such as "org.apache.hadoop.hdfs.server.namenode.FSNam...
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Author: Yanbo Liang,
2012-07-26, 07:20
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Re: problem configuring hadoop with s3 bucket - HDFS - [mail # user]
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...Could you provide your execute environment, operation procedure and the detail log information? 2012/7/24 Alok Kumar ...
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Author: Yanbo Liang,
2012-07-25, 06:35
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