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Re: libhdfs not getting compiled - HDFS - [mail # dev]
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...Hi Aastha, Try using "ldd" against the fuse_dfs executable, and see where you are pulling libhdfs.so from. It may be it is linking from the "wrong one". Brian O...
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Author: Brian Bockelman,
2011-03-17, 21:38
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Re: problems with fuse-dfs - HDFS - [mail # dev]
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...On Mar 2, 2011, at 12:46 AM, Aastha Mehta wrote: and connection the Can you post the attempts? Sounds like it may not be configured correctly. SIZE/OFF denied) ...
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Author: Brian Bockelman,
2011-03-02, 12:27
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Fwd: problems with fuse-dfs - HDFS - [mail # dev]
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...Sorry, resending on hdfs-dev; apparently I'm not on -user. Begin forwarded message: this see a log modified by one that my host No following LD_LIBRARY_PATH=$HADOOP_HOME/build/li...
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Author: Brian Bockelman,
2011-03-02, 00:26
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Re: DataBlockScanner scan period - HDFS - [mail # dev]
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...On Nov 23, 2010, at 7:41 PM, Thanh Do wrote: Why? What if you restarted your datanode once every 2 weeks? Last I checked, HDFS randomly assigned blocks to be verifie...
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Author: Brian Bockelman,
2010-11-24, 01:52
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Re: DataBlockScanner scan period - HDFS - [mail # dev]
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...On Oct 13, 2010, at 7:29 PM, Thanh Do wrote: Yes. At some point, I'd really like to figure out what percentage of our blocks actually get scanned at our site, I suspect so...
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Author: Brian Bockelman,
2010-10-14, 00:37
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Re: DataBlockScanner scan period - HDFS - [mail # dev]
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...Hi Thanh, That is correct. Last time I read the code, Hadoop scheduled the block verifications randomly throughout the period in order to avoid periodic effects (i.e....
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Author: Brian Bockelman,
2010-10-14, 00:18
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Re: DataBlockScanner scan period - HDFS - [mail # dev]
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...Hi Thanh, The scan period is the period that hadoop *attempts* to complete an entire node scan. That is, if it's set to 3 weeks, HDFS will try to scan each block once...
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Author: Brian Bockelman,
2010-10-14, 00:07
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Re: how can we know the statistics of namenode and datanode using API's - HDFS - [mail # dev]
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...Hey Vidur, Do you need to access it directly in Java, or can you just parse them out of (for example) Ganglia? There are JMX statistics, but I am not familiar enough ...
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Author: Brian Bockelman,
2010-06-11, 12:45
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Re: HDFS-1150: Comment and review - HDFS - [mail # dev]
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...Hey Jakob, If I understand correctly, then two plausible ways of attacking a client are then: 1) Screw up the client's DNS resolution somehow (reference the rather serious ...
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Author: Brian Bockelman,
2010-05-15, 00:00
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Re: HDFS Blockreport question - HDFS - [mail # dev]
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...Hey Jay, I think, if you're experienced in implementing transfer protocols, it is not difficult to implement the HDFS wire protocol. As you point out, they are subjec...
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Author: Brian Bockelman,
2010-04-06, 14:50
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