Retrieving and display *small* Oracle BLOBs in browser....
Hi. I use JDBC to retrieve an Oracle BLOB of either gif or jpg or tif Some of the BLOBs are fairly big e.g. 40+KBytes. However most are smaller, around 10+KBytes. I found that I can retrieve and display the "big" blobs or write to to a file in a temp dir, but I cannot display the smaller blobs. When I try writing the small blobs to a temp dir, the file handle will be created, but the file length is zero ! Can anyone help ??? Any hints, tips, suggestions ???
Re: Setting SEMNMI etc.
You need both : A startup script for Oracle and setting the global system parameters. In /etc/sysctl.conf , I set kernel.shmmax= Hope that helps - Original Message - From: "Robert Monical" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, September 30, 2002 07:12 PM Subject: Setting SEMNMI etc. > Preparing to install Oracle 9i on a new RH 7.2 system. > > The installation guide wants me to set a number of kernel parameters. > I tells me to write a script to set these at system startup. > I'm thinking there is a configuration file that contains these initial > values but am striking out. > > TIA > > > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > https://listman.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
Re: /tmp/orbit-root ???
There has been quite a lot of discussions about that. They are default ORBit files, an open source CORBA. - Original Message - From: "Robert Monical" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, September 30, 2002 07:15 PM Subject: /tmp/orbit-root ??? > This is a new install of Redhat 7.2. > Installed-subscribed to RHN and let it update overnight. > Today, working on the Oracle install and see this orbit-root directory in tmp. > > Some of the files cannot be deleted. Any idea what it is? > > > TIA > > > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > https://listman.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
JAVA accessing BLOBS and CLOBS
Hi All.
A bit out of context here, but this is one of the
most knowledgeable and helpful forum ...
I have an Oracle table , each row has one CLOB and
one BLOB.
I have been able to stream documents into and
out of the BLOB's incl. MS .doc Also I have been able to get the content from
BLOB and write it to a target directory.However I am having odd problems
with CLOB, a simple text file. My servlet attempts to read the CLOB and does
create the output file in the target directory, but does not copy the content
over. It also returns 0 for clobLength - here is where the troubles start !?!
Here is the stub-code :...ResultSet clobRS = thisStmt.executeQuery
("SELECT ATextMsg " +"FROM ... " +"WHERE ... "
);clobRS.next();// CLOB thisCLOB = ((OracleResultSet)
clobRS).getCLOB("ATextMsg");int chunkSize =
thisClob.getChunkSize();System.out.println("chunkSize is " + chunkSize); //
default us 8132...char [] textBuffer = new char[chunkSize];String
targetFile = targetDir + "retrieved_" + fileName; File thisFile = new
File(targetFile); // it does create an empty target file...// read content
as ASCII (text) content...FileOutputStream thisFileOutputStream = new
FileOutputStream(thisFile);OutputStreamWriter thisWriter = new
OutputStreamWriter(thisFileOutputStream);BufferedWriter thisBufferedWriter =
new BufferedWriter(thisWriter);//long clobLength = thisClob.length(); //
things go very wrong here, returns length of 0, why
?!?System.out.println("clobLength is " + clobLength); flush to
targetFile, but nothing gets copied over due to clobLength=0 ...for
(position=1; position<=clobLength; position+=chunkSize){ int
charsRead = thisClob.getChars(position, chunkSize,
textBuffer);thisBufferedWriter.write(testBuffer);}...Since the
clobLength is 0, obviously it will not copy from the database CLOB to the
file.Manually change the clobLength = 8132, recompile and run, then it
copies some junk to the targetFile, certainly not the textual data in the CLOB
itself.
The BLOB is fine...Can someone comment on this
please and if possible, give me a hint on where I might have gone wrong with a
simple text file ???
Re: Is this a virus : "/tmp/orbit-"
There they are again, always with a user's owner.group and filesize 0.
Just because I keep looking over my shoulder to check if anyone's following
me doesn't mean I am paranoided...
- Original Message -
From: "Gordon Messmer" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, September 27, 2002 07:17 PM
Subject: RE: Is this a virus : "/tmp/orbit-"
> On Fri, 2002-09-27 at 10:26, Ward William E DLDN wrote:
> > Gordon, while you're right that it's PROBABLY
> > ORBit (an Open Source CORBA implementation),
> > it seems to me whenever someone asks that question
> > the answer can NEVER be "No". It's always got
> > to be "YES!", "Possibly" or "Probably not", since
> > most root kits are going to attempt to install
> > some service or device which masquerades as an
> > innocuous, or even required, program.
>
> Good point. It could be a worm or trojan that creates the files, but I
> haven't heard of one that behaves like ORBit yet. :)
>
> > He might be able to check RPM to see what he has
> > installed which required ORBit, and see if he's
> > using those programs. In this case, perhaps
> > he should do an
> >
> > rpm -q ORBit | xargs rpm -q --whatrequires
>
> He'll get better results with:
> rpm -q ORBit --provides | awk '{print $1}' | xargs rpm -q --whatrequires
>
>
>
>
> --
> redhat-list mailing list
> unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe
> https://listman.redhat.com/mailman/listinfo/redhat-list
--
redhat-list mailing list
unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe
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Re: Is this a virus : "/tmp/orbit-"
Hi again. I have j2sdk, Apache, Tomcat etc talking with one another. I even have JNDI and ANT installed, but I do not recall installing CORBA. How did that come about, be fault when installing one of the other packages ? - Original Message - From: "Gordon Messmer" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, September 27, 2002 12:13 PM Subject: Re: Is this a virus : "/tmp/orbit-" > On Fri, 2002-09-27 at 08:08, Arthur Chan wrote: > > Hi All. > > I have these strange sub-dirs in /tmp/orb- > > , and in these sub-dirs , hundreds of files names like this : > > "srwxr-xr-x orb-29348673785". > > In the /tmp directory itself, many hundreds of files with names > > similar to this : "file-fdhfgv878r" > > Never seen them before, propagate faster than rabbits > > Is this a virus ? > > No. `rpm -qi ORBit` > > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > https://listman.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
Is this a virus : "/tmp/orbit-"
Hi All. I have these strange sub-dirs in /tmp/orb- , and in these sub-dirs , hundreds of files names like this : "srwxr-xr-x orb-29348673785". In the /tmp directory itself, many hundreds of files with names similar to this : "file-fdhfgv878r" Never seen them before, propagate faster than rabbits Is this a virus ?
Re: From LILO to GRUB
Hi all! At the moment I have reached my pain barrier, so I do not intend to download and install any beta software. On the other hand I have heard no complains about grub. Anyway here is the download site. Maybe after Christmas, when I plan to update my kernel... http://www.gnu.org/software/grub/grub-download.html Aly is unusually reticent on this. Cheers. - Original Message - From: "Brian Ashe" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, September 12, 2002 10:49 AM Subject: Re: From LILO to GRUB > Ted Gervais, > > On Thursday September 12, 2002 10:12, Ted Gervais wrote: > > Do you have to remove LILO now that grub is installed? Will there be a > > conflict? > > If you mean the /sbin/lilo program and /etc/lilo.conf file, then no, you don't > have to remove them. > > But grub will overwrite lilo on the MBR. > > > And I presume you will have to input all your LILO data in GRUB to get > > things going? Or does the installtion process pick up all the LILO > > information in the transfer process. > > Grub actually doesn't require you to edit anything as far as picking up > kernels. You will need to modify the conf file if you want to change the menu > timeout or if you have a particularly strange lilo configuration. But it will > pick up your current setup rather well with very few exceptions. > > > At 05:31 PM 9/10/2002 -0400, you wrote: > > >Arthur Chan, > > > > > >On Tuesday September 10, 2002 02:43, Arthur Chan wrote: > > > > Hi All . > > > > Hi Aly. > > > > Is there any painless and easy way to move from lilo to grub ??? > > > > > >Step 1 : Verify grub is installed. > > > # rpm -q grub > > > > > >Step 1a : If not install it from the CDs > > > > > >Step 2 : Make it work. > > > # grub-install /dev/hda > > > > > >Done. > > > > > >-- > > >Brian Ashe CTO > > >Dee-Web Software Services, LLC. [EMAIL PROTECTED] > > > > > > > > > > > >-- > > >redhat-list mailing list > > >unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > > >https://listman.redhat.com/mailman/listinfo/redhat-list > > > > --- > > Ted Gervais, > > Coldbrook, Nova Scotia, Canada > > -- > Brian Ashe CTO > Dee-Web Software Services, LLC. [EMAIL PROTECTED] > > > > -- > redhat-list mailing list > unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe > https://listman.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
Need some ideas about configuring gateways and routers (other than buying them)...
Hi all. I just built a gateway machine : eth0 to DSL with NAT and eth1 is internal. DSL does forwarding with single static ip supplied by ISP. That part is fine. Now I want to have a firewall on the gateway machine, up pops ipchains.rules for input, output and forwarding. That's when issues arise. Yes, it protects the machines behind the firewall, but I seem to lose the ability to browse the net. Mind you, selectively we can even telnet/ssh to various sites and vice versa. The questions are : (1) best way to build a secure firewall (relatively speaking) n yet allows users to browse the net - seems contradictory ??? (2) are there any other solutions than to stick several nic's into the gateway and assign each a different address or address range where each range has a different ipchain-scheme for input/output/forwarding ???
Re: Circular argument installing BIND-9.2.1 over Bind-9.1.0
Okay, many of u may be familiar with this circular dependencies > Bind-9.1.0 requires libdns.so.4 and libisc.so.3 , therefore I have to freshen with Bind-utils-9.2.1, this won;t work because the so-files are required by bind-9.1.0 In a nutshell a circular dependency. Nice ! How do I get around that ? Manually removing the objects ??? - Original Message - From: Arthur Chan To: [EMAIL PROTECTED] Sent: Tuesday, September 10, 2002 05:12 PM Subject: Circular argument installing BIND-9.2.1 over Bind-9.1.0 Hi I had bind-9.1.0 installed which I want to replace with the downloaded bind-9.2.1 from ISC Using "rpm -Uvh bind-9.2.1" I got the error message that it failed dependencies test , missing "libdns.so.5" and "libisc.so.5". So I applied "rpm -Uvh bind-utils-9.2.1" and it reported a conflict with existing files from "bind-utils-9.1.0" And so it goes on and on. Where do I find these fabulous xxx.so files ??? What's going on ???
Circular argument installing BIND-9.2.1 over Bind-9.1.0
Hi I had bind-9.1.0 installed which I want to replace with the downloaded bind-9.2.1 from ISC Using "rpm -Uvh bind-9.2.1" I got the error message that it failed dependencies test , missing "libdns.so.5" and "libisc.so.5". So I applied "rpm -Uvh bind-utils-9.2.1" and it reported a conflict with existing files from "bind-utils-9.1.0" And so it goes on and on. Where do I find these fabulous xxx.so files ??? What's going on ???
From LILO to GRUB
Hi All . Hi Aly. Is there any painless and easy way to move from lilo to grub ???
Linux looks for hda, hdb etc when there are none ...
Hi all. One of my boxes uses SCSI. On the ASUS m/b I toggled EIDE h/d off. This is fine for the BIOS on booting up, it fines the Adaptec and proceeds happily. However when RH7.1 loads, it starts looking for hda, hdb etc when in fact they are sda, sdb etc and RH7.1 throws these error messages : hda : IRQ probe failed (...) hda : IRQ probe failed (...) hda : noresponse, resetting drive hdb : IRQ probe failed (...) and so on ... then continues loading successfully. It is *annoying*, can someone tell me how to get rid of these spurious error messages ?
Where to put ipchain-rules ?
Hi I am unsure where to put my ipchain rules. It is also a matter if timing. As I understand it , on booting RH : (1) init runs /etc/inittab (2) then /etc/rc.d/rc.sysinit (3) then /etc/rc.d/rc.local Then at some point in time, init recognises the runlevel and run the links in rc(n).d e.g. rc2.d which has got "S08ipchains" and "S08iptables". I further assumed the ascii-order the links appear in will be the order in which they are loaded. What is the best time to fire up my own ipchain rules ??? If I was running rc2.d, would a link like S09ipchains.myrules be a good time ??? The actual rules are in /etc/rc.d/init.d/ipchains.myrules
Configuring font with lilo
Hi ! I have this old m/b with integrated graphics controller. The box boots to command line and has only the bare RH essentials. The default font is very bad for eyes, so I added "VGA=ASK" to lilo.conf. On rebooting, I can either specify the listed display options (all low-res) or type in "scan", which allows me to choose the hi-res options. However, all the hi-res options have a blue line above the blue directory names. When I use "vi", the empty lines have a continuous blue underscore ??? Is this a peculiar pronlem with the onboard graphics controller or is it lilo ?
Font size (again) at cmd line level ?
Hi. I know this has been asked before. I have a RH7.1 box that boots to command line and has only the vrey bare essential ie no X11 , Gnome , whatever... The font size at command line level is very bad for eyes . Are there any ways that can be changed ? I know the onboard AGP can support that ??? THX
DLink DFE-530TX+ on RH7.1 ???
Hi I usually use Realtek , but this time I picked up some DLink TFE-530+ nic's Seems okay, modules.conf has the entries eth0 8139.too and eth1 8139.too Looks okay on "ifconfig -a", but then when I do a "route" it takes a long time to recognise the default route and I don't seem to be able to join the internal network. I remember some talk about DLink not being really compatible on earlier versions of RH. Has anyone been able to make them work of RH7.1 using 8139.too ???
Does RH7.3 Apache httpd comes with DSO support ?
Hi all ! I am being pre-emptive here. I am using RH7.1 and have to make Apache-1.3.19-5 httpd talk with Tomcat 4.0.4 , to this end, I will be using mod_jk! Does anyone know wether there are any problems with this version configuration ??? How do I find out whether my Apache is DSO-enabled ? THX
BSD vs Linux ?
Hi ! Recently there was some chat about "real Unix". Was there any seminal comparative studies between FreeBSD (or even NetBSD) and Linux ? BSD has been around a long time. Why Linux ? Why not BSD ? Drivers ? Platforms and chipsets ? Are there anything one can do with Linux which one cannot do with BSD ? Does BSD manage kernel memory better and does Linux swap more "aggressively" ? Is there a JVM for BSD ? Does the Apache staple run on BSD ? Questions upon questions... The truth is out there somewhere.
Another question about enabling SMP
Hi ! Is there anyway to enable SMP without doing a full install again ? I recall seeing a search engine for the archive database, just can't remember where. How do I search the archive for the emails ? Thx
JNDI portability...
Hi ! I am creating DataSources for Ora ConnectionPools (JAVA servlets) and it seems I need to create a "context object" first.LDAP was mentioned and appealed to me.Reading up on Oracle, JNDI was explicitly recommended.Also, JNDI seems to be used only on J2EE, but I have J2SDK standard edtion installed.I take it I need to upgrade to J2EE? Would someone share their experience ? thx.
