Re: Mathematica 8 + OS X + McAfee = trouble; help?

*To*: mathgroup at smc.vnet.net*Subject*: [mg124643] Re: Mathematica 8 + OS X + McAfee = trouble; help?*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Fri, 27 Jan 2012 06:16:01 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <jfm05k$jt3$1@smc.vnet.net> <201201251205.HAA06033@smc.vnet.net> <201201260826.DAA23929@smc.vnet.net>*Reply-to*: murray at math.umass.edu

I've now tracked down the Java runtime on OS X that's causing the hang-up for JLink due to McAfee on-access scan: /System/Library/Java/JavaVirtualMachines/1.6.0.jdk Now, excluding both that package _and_ $InstallationDirectory and $BaseDirectory from on-access scans circumvents the JLink problems. It's still strange that: (1) I have to exclude the Mathemtica files, too (excluding only the Java runtime does not suffice); and (2) this did not always happen (which suggests that something in McAfee updates changed things). On 1/26/12 3:26 AM, Murray Eisenberg wrote: > OK, tracking down and excluding the Java run-time jar may help. > > But on OS X, there seems to be no file named rt.jar. The closest > candidate I've found is: > > > /System/Library/Frameworks/JavaVM.framework/Versions/A/Frameworks/JavaRuntimeSupport.framework/Versions/A/Resources/Java/JavaRuntimeSupport.jar > > However, excluding that from the McAfee on-access scan does not cure the > problem. > > I'll investigate further. > > On 1/25/12 7:05 AM, Oleksandr Rasputinov wrote: >> On Tue, 24 Jan 2012 10:12:04 -0000, Murray Eisenberg >> <murray at math.umass.edu> wrote: >> >>> Under Mac OS X 10.6.8 (Snow Leopard) I've been having persistent >>> troubles getting the Mathematica 8.0.4 front end to connect with the >>> kernel when I start the program, and to start the PacletManager, too. >>> Evidently, the problem is caused by JLink not starting or running >>> properly. >>> >>> After substantial direct help from Wolfram tech support, we've traced >>> the problem to McAfee Security, specifically, Version 1.1.0 (1309), with >>> its anti-malware version 9.1.0 (4478), engine version 5400.1158. >>> >>> Has anybody else encountered this? >>> >>> What happens is that with normal on-access scan enabled, the JLink >>> problem occurs; with on-access scan disabled, the problem disappears. >>> >>> I'd like to be able to keep McAfee Security and simply specify the >>> needed file exclusions from on-access scan. We've tried to exclude the >>> entire Mathematica.app package (i.e., $InstallationDirectory) as well as >>> /Library/Mathematica (i.e., $BaseDirectory), and even the entire >>> $UserBaseDirectory. But that doesn't do the trick. >>> >>> Perhaps the exclusions need to include specific files in those >>> directories, or even some Java files/directories. The Mac in question >>> has the usual Apple 64- and 32-bit Javas, version 1.6.0_29-b11-402. >>> >>> Any suggestions? >>> >> >> A while ago I encountered a similar problem (probably the same, in fact). >> McAfee's software seems to have a problem with scanning the large .jar >> files needed by the Java runtime, which of course is needed for the >> Mathematica front end. Specifically, McAfee takes a very long time (with >> certain definition versions) to scan rt.jar (of certain versions of Java) >> and eventually gives up, but in the mean time J/Link times out. I'm not >> very familiar with Macs or how the Mathematica installation is laid out on >> that platform, but I would think you can use an exclusion for rt.jar, >> wherever that may reside. Actually, to be frank, I always found McAfee to >> be extremely slow in general and to use an unjustifiably large amount of >> memory, which caused me some difficulty in using Mathematica even without >> the added annoyance of this particular problem. As there are many other >> anti-virus programs available and pretty much every one of them (except >> Norton/Symantec) is better in every respect than McAfee, I'd certainly >> encourage you not to rule out that solution. >> > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**References**:**Re: Mathematica 8 + OS X + McAfee = trouble; help?***From:*"Oleksandr Rasputinov" <oleksandr_rasputinov@hmamail.com>

**Re: Mathematica 8 + OS X + McAfee = trouble; help?***From:*Murray Eisenberg <murray@math.umass.edu>