Nicolas Liochon

309 posts

Nicolas Liochon

Nicolas Liochon

@nkeywal

zk, big data, realtime systems and machine learning. Apache HBase committer & PMC.

Paris, France Katılım Haziran 2009
172 Takip Edilen1K Takipçiler
Nicolas Liochon retweetledi
Martin Thompson
Martin Thompson@mjpt777·
It can now take longer in the Java NIO code than time on the physical network. We need to think differently about core libraries.
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Nicolas Liochon retweetledi
Martin Thompson
Martin Thompson@mjpt777·
Aeron 0.1 is available on Maven Central! Adds < 1μs on top of raw network latency and can do 20+ million 40 byte messages per second.
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Nicolas Liochon
Nicolas Liochon@nkeywal·
@johnhugg @eric_brewer It's "less than that of other systemic failures": sometimes the most probable failure scenario is not a partition.
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Nicolas Liochon
Nicolas Liochon@nkeywal·
@johnhugg @eric_brewer Oh it was our bugs :-). Or the error is not clear so the admin decides to restart the whole system (15 mins downtime)
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Nicolas Liochon
Nicolas Liochon@nkeywal·
@johnhugg @eric_brewer With more nodes, true partition tolerance (i.e. minimal impact on latency) is important but hard & very expensive.
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Nicolas Liochon
Nicolas Liochon@nkeywal·
@johnhugg @eric_brewer for functionally complex systems w/ less than 10 nodes I had much more issues with software bugs and human errors.
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Nicolas Liochon
Nicolas Liochon@nkeywal·
@jambay I totally agree. (even if I'm not sure that the vast majority of cases deployed in production are partition tolerant :-).
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Nicolas Liochon retweetledi
John Evdemon
John Evdemon@jevdemon·
Being partition tolerant is comfortable. You have to be Stonebraker to claim partition intolerance. Worth reading. j.mp/1KHA6dv
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Nicolas Liochon retweetledi
Jesse Yates
Jesse Yates@jesse_yates·
Over a year since the originally coded, HDFS-6440 has been committed! 3+ NNs now possible on Hadoop 3.0.0+
Jesse Yates tweet media
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