Groups > comp.lang.java.programmer > #9792

Re: Is there a file limit size of 2GB in JDK 1.5

From	Eric Sosman <esosman@ieee-dot-org.invalid>
Newsgroups	comp.lang.java.programmer
Subject	Re: Is there a file limit size of 2GB in JDK 1.5
Date	2011-11-08 21:03 -0500
Organization	A noiseless patient Spider
Message-ID	<j9cn40$mht$1@dont-email.me> (permalink)
References	(6 earlier) <4e7bdfa9$0$286$14726298@news.sunsite.dk> <j5hkgo$1r1$1@speranza.aioe.org> <4eb8926b$0$284$14726298@news.sunsite.dk> <j9a76t$8j3$1@speranza.aioe.org> <nhgib7tlk59pd6v127er0gu5kssmtafjuf@4ax.com>

Show all headers | View raw

On 11/8/2011 9:54 AM, Roedy Green wrote:
> Java has used longs 64 bit addressing for files since day 1.  Some
> older platforms had their own limits, but they did not come from Java.
>
> that gives you files up to 9,223,372,036,854,775,807  bytes.
> 9 exabytes.  Not likely to be a problem any time soon.

     Quoth Wikitedium:

	According to CSIRO, in the next decade, astronomers expect to
	be processing 10 petabytes of data every hour from the Square
	Kilometre Array (SKA) telescope. The array is thus expected to
	generate approximately one exabyte every four days of
	operation. According to IBM, the new SKA telescope initiative
	will generate over an exabyte of data every day.

The same article has other rather startling estimates of present-day
data capacities and rates.  Some appear to contradict each other, by
as much as 1-1.5 decimal orders of magnitude, but the overall burden
is clear: "64 bits" is not a synonym for "forever."

-- 
Eric Sosman
esosman@ieee-dot-org.invalid

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Re: Is there  a file limit size of 2GB in JDK 1.5 Arne Vajhøj <arne@vajhoej.dk> - 2011-11-07 21:22 -0500
  Re: Is there  a file limit size of 2GB in JDK 1.5 supercalifragilisticexpialadiamaticonormalizeringelimatisticantations <supercalifragilisticexpialadiamaticonormalizeringelimatisticantations@averylongandannoyingdomainname.com> - 2011-11-07 22:20 -0500
    Re: Is there  a file limit size of 2GB in JDK 1.5 spk <jhic@speak.invalid> - 2011-11-08 01:32 -0400
      Re: Is there  a file limit size of 2GB in JDK 1.5 thoolen <th00len@th0lenbot.thorium> - 2011-11-08 15:56 -0500
    Re: Is there  a file limit size of 2GB in JDK 1.5 Roedy Green <see_website@mindprod.com.invalid> - 2011-11-08 06:54 -0800
      Re: Is there  a file limit size of 2GB in JDK 1.5 Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-11-08 21:03 -0500
        Re: Is there  a file limit size of 2GB in JDK 1.5 Gene Wirchenko <genew@ocis.net> - 2011-11-08 19:11 -0800

csiph-web