lh - Page 3 - Developer IT

why i failed to build vsftp?

- by hugemeow

make, then failed with the following message. the main point is /lib/libcap.so.1: could not read symbols: File in wrong format, confusing... gcc -c readwrite.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -c opts.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -c ssl.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -c sslslave.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -c ptracesandbox.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -c ftppolicy.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -c sysutil.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -c sysdeputil.c -O2 -Wall -W -Wshadow -idirafter dummyinc gcc -o vsftpd main.o utility.o prelogin.o ftpcmdio.o postlogin.o privsock.o tunables.o ftpdataio.o secbuf.o ls.o postprivparent.o logging.o str.o netstr.o sysstr.o strlist.o banner.o filestr.o parseconf.o secutil.o ascii.o oneprocess.o twoprocess.o privops.o standalone.o hash.o tcpwrap.o ipaddrparse.o access.o features.o readwrite.o opts.o ssl.o sslslave.o ptracesandbox.o ftppolicy.o sysutil.o sysdeputil.o -Wl,-s `./vsf_findlibs.sh` /lib/libcap.so.1: could not read symbols: File in wrong format collect2: ld returned 1 exit status make: *** [vsftpd] Error 1 [mirror@hugemeow vsftpd]$ ls /lib/libc libc-2.5.so libcap.so.1.10 libcidn.so.1 libcom_err.so.2.1 libcrypto.so.0.9.8e libcrypt.so.1 libcap.so.1 libcidn-2.5.so libcom_err.so.2 libcrypt-2.5.so libcrypto.so.6 libc.so.6 [mirror@hugemeow vsftpd]$ ls /lib/libc libc-2.5.so libcap.so.1.10 libcidn.so.1 libcom_err.so.2.1 libcrypto.so.0.9.8e libcrypt.so.1 libcap.so.1 libcidn-2.5.so libcom_err.so.2 libcrypt-2.5.so libcrypto.so.6 libc.so.6 [mirror@hugemeow vsftpd]$ ls /lib/libcap.so.1 -l lrwxrwxrwx 1 root root 14 Mar 20 2012 /lib/libcap.so.1 -> libcap.so.1.10 [mirror@hugemeow vsftpd]$ ls /lib/libcap.so.1 -lh lrwxrwxrwx 1 root root 14 Mar 20 2012 /lib/libcap.so.1 -> libcap.so.1.10 [mirror@hugemeow vsftpd]$ ls /lib/libcap.so.1 -lhL -rwxr-xr-x 1 root root 12K Mar 15 2007 /lib/libcap.so.1 this may have something to do with 64 bit system, but i have make modification to vsf_findlibs.sh 48 # Look for libcap (capabilities) 49 if locate_library /lib64/libcap.so.1; then 50 echo "/lib/libcap.so.1"; 51 elif locate_library /lib64/libcap.so.2; then 52 echo "/lib/libcap.so.2"; 53 else 54 # locate_library /usr/lib/libcap.so && echo "-lcap"; 55 # locate_library /lib/libcap.so && echo "-lcap"; 56 locate_library /lib64/libcap.so.1 && echo "-lcap"; 57 fi but make failed with the same error, why?

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change owner/uid of mount point upon mount

- by Shiplu

The scenario is like this. Bob has a computer. It crashed. Now he only has the hdd. The hdd is in ext3 format. He go to his office and told the sys admin John to mount this hdd and put the mount point in his home directory. John used the following fstab entries. # Bobs harddisk /media/TAPE4/Bobs-hdd.img /home/bob/myhdd/windows ntfs ro,loop,offset=32256 0 0 /media/TAPE4/Bobs-hdd.img /home/bob/myhdd/linux ext3 ro,loop,offset=14048810496 0 0 /media/TAPE4/Bobs-hdd.img /home/bob/myhdd/extra ntfs ro,loop,offset=28015335936 0 0 Bob was happy. He could access his old extra and windows. Specially the Documents and Settings in windows was helpful for him. But he found a problem. He is a web developer and all his websites are in linux/home/bob/public_html directory. When he tried to access that public_html directory he got permission_denied. He executed ls -lh he saw this. drwxr-xr-x 2 john john 4.0K Nov 9 2011 Desktop drwxr-xr-x 3 john john 4.0K Aug 12 2011 Documents drwxr-xr-x 3 john john 4.0K Aug 21 2011 public_html He contacted John thinking he might be mistakenly did this. But John couldn't find a way why this happend? Then one thing came into his mind file system hardly store username. They store uids. So he executed ls -ln drwxr-xr-x 2 1000 1000 4096 Nov 9 2011 Desktop drwxr-xr-x 3 1000 1000 4096 Aug 12 2011 Documents drwxr-xr-x 3 1000 1000 4096 Aug 21 2011 public_html John thinks 1000 is the first uid on a linux system. As he is the admin of the current system. He created his account first. so Johns uid was 1000. Bob also setup his private system and crated his account first. So Bobs uid was 1000 too. So thats an expected behavior. But problem remains. How can Bob access those websites in public_html?

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How to sort my paws?

- by Ivo Flipse

In my previous question I got an excellent answer that helped me detect where a paw hit a pressure plate, but now I'm struggling to link these results to their corresponding paws: I manually annotated the paws (RF=right front, RH= right hind, LF=left front, LH=left hind). As you can see there's clearly a pattern repeating pattern and it comes back in aknist every measurement. Here's a link to a presentation of 6 trials that were manually annotated. My initial thought was to use heuristics to do the sorting, like: There's a ~60-40% ratio in weight bearing between the front and hind paws; The hind paws are generally smaller in surface; The paws are (often) spatially divided in left and right. However, I’m a bit skeptical about my heuristics, as they would fail on me as soon as I encounter a variation I hadn’t thought off. They also won’t be able to cope with measurements from lame dogs, whom probably have rules of their own. Furthermore, the annotation suggested by Joe sometimes get's messed up and doesn't take into account what the paw actually looks like. Based on the answers I received on my question about peak detection within the paw, I’m hoping there are more advanced solutions to sort the paws. Especially because the pressure distribution and the progression thereof are different for each separate paw, almost like a fingerprint. I hope there's a method that can use this to cluster my paws, rather than just sorting them in order of occurrence. So I'm looking for a better way to sort the results with their corresponding paw. For anyone up to the challenge, I have pickled a dictionary with all the sliced arrays that contain the pressure data of each paw (bundled by measurement) and the slice that describes their location (location on the plate and in time). To clarfiy: walk_sliced_data is a dictionary that contains ['ser_3', 'ser_2', 'sel_1', 'sel_2', 'ser_1', 'sel_3'], which are the names of the measurements. Each measurement contains another dictionary, [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] (example from 'sel_1') which represent the impacts that were extracted. Also note that 'false' impacts, such as where the paw is partially measured (in space or time) can be ignored. They are only useful because they can help recognizing a pattern, but won't be analyzed. And for anyone interested, I’m keeping a blog with all the updates regarding the project!

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Ubuntu: Move fsbackup backups to Amazon S3

- by Alexander Gladysh

I have a legacy server (Ubuntu 9.10 Karmic x86), where previous admin set up backups with fsbackup. This server lives in a VPS (under some kind of Xen), and it is low on HDD space (16 GB total). Now it came to a point, where fsbackup backups take more space than the rest of data in the system. The filesystem is 100% filled, and I already cleaned up all that I could, aside from actual backups. I do not have any experience managing fsbackup, and I do not want to break or lose the backups. Googling fsbackup gives surprisingly low quality results... Here is how my backups look like: $ sudo ls -lh /var/archives total 8.1G -rw-rw---- 1 root root 318 2011-01-06 06:26 myserver-20110106.md5 -rw-rw---- 1 root root 258 2011-01-07 06:26 myserver-20110107.md5 -rw-rw---- 1 root root 318 2011-01-08 06:26 myserver-20110108.md5 -rw-rw---- 1 root root 318 2011-01-09 06:26 myserver-20110109.md5 -rw-rw---- 1 root root 346 2011-01-10 06:43 myserver-20110110.md5 -rw-rw---- 1 root root 14M 2011-01-06 06:26 myserver-all-mysql-databases.20110106.sql.bz2 -rw-rw---- 1 root root 14M 2011-01-07 06:26 myserver-all-mysql-databases.20110107.sql.bz2 -rw-rw---- 1 root root 14M 2011-01-08 06:26 myserver-all-mysql-databases.20110108.sql.bz2 -rw-rw---- 1 root root 14M 2011-01-09 06:26 myserver-all-mysql-databases.20110109.sql.bz2 -rw-rw---- 1 root root 862 2011-01-10 06:43 myserver-all-mysql-databases.20110110.sql.bz2 -rw-rw---- 1 root root 827K 2011-01-03 06:25 myserver-etc.20110103.master.tar.gz -rw-rw---- 1 root root 16K 2011-01-06 06:25 myserver-etc.20110106.tar.gz -rw-rw---- 1 root root 16K 2011-01-07 06:25 myserver-etc.20110107.tar.gz -rw-rw---- 1 root root 16K 2011-01-08 06:25 myserver-etc.20110108.tar.gz -rw-rw---- 1 root root 16K 2011-01-09 06:25 myserver-etc.20110109.tar.gz -rw-rw---- 1 root root 827K 2011-01-10 06:25 myserver-etc.20110110.master.tar.gz -rw------- 1 root root 36K 2011-01-10 06:25 myserver-etc.incremental.bin -rw-rw---- 1 root root 29M 2011-01-03 06:25 myserver-home.20110103.master.tar.gz -rw-rw---- 1 root root 11K 2011-01-06 06:25 myserver-home.20110106.tar.gz -rw-rw---- 1 root root 14K 2011-01-07 06:25 myserver-home.20110107.tar.gz -rw-rw---- 1 root root 11K 2011-01-08 06:25 myserver-home.20110108.tar.gz -rw-rw---- 1 root root 11K 2011-01-09 06:25 myserver-home.20110109.tar.gz -rw-rw---- 1 root root 2.0M 2011-01-10 06:25 myserver-home.20110110.master.tar.gz -rw------- 1 root root 27K 2011-01-10 06:25 myserver-home.incremental.bin -rw-rw---- 1 root root 1.5G 2011-01-03 06:29 myserver-opt.20110103.master.tar.gz -rw-rw---- 1 root root 1.5M 2011-01-06 06:25 myserver-opt.20110106.tar.gz -rw-rw---- 1 root root 1.5M 2011-01-07 06:25 myserver-opt.20110107.tar.gz -rw-rw---- 1 root root 1.5M 2011-01-08 06:25 myserver-opt.20110108.tar.gz -rw-rw---- 1 root root 1.5M 2011-01-09 06:25 myserver-opt.20110109.tar.gz -rw-rw---- 1 root root 1.5G 2011-01-10 06:30 myserver-opt.20110110.master.tar.gz -rw------- 1 root root 201K 2011-01-10 06:30 myserver-opt.incremental.bin -rw-rw---- 1 root root 2.3G 2011-01-03 06:41 myserver-srv.20110103.master.tar.gz -rw-rw---- 1 root root 44M 2011-01-06 06:26 myserver-srv.20110106.tar.gz -rw-rw---- 1 root root 27M 2011-01-07 06:25 myserver-srv.20110107.tar.gz -rw-rw---- 1 root root 39M 2011-01-08 06:26 myserver-srv.20110108.tar.gz -rw-rw---- 1 root root 2.0M 2011-01-09 06:25 myserver-srv.20110109.tar.gz -rw-rw---- 1 root root 2.7G 2011-01-10 06:42 myserver-srv.20110110.master.tar.gz -rw------- 1 root root 3.4M 2011-01-10 06:42 myserver-srv.incremental.bin I'm thinking about moving backups to Amazon S3, but before that I have to free some space, so the server can work. Perhaps I can mount /var/archives to an Amazon S3 bucket somehow... Any advice?

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How can I recover an ext4 filesystem corrupted after a fsck?

- by Regan

I have an ext4 filesystem on luks over software raid5. The filesystem was operating "just fine" for several years when I was beginning to run out of space. I had a 9T volume on 6x2T drives. I began upgrading to 3T drives by doing the mdadm fail, remove, add, rebuild, repeat process until I had a larger array. I then grew the luks container, and then when I unmounted and tried to resize2fs I was given the message the filesystem was dirty and needed e2fsck. Without thinking I just did e2fsck -y /dev/mapper/candybox and it began spewing all kinds of inode being removed type messages (can't remember exactly) I killed e2fsck and tried to remount the filesystem to backup data I was concerned about. When trying to mount at this point I get: # mount /dev/mapper/candybox /candybox mount: wrong fs type, bad option, bad superblock on /dev/mapper/candybox, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so Looking back at my older logs I noticed the filesystem was giving this error each time the machine booted: kernel: [79137.275531] EXT4-fs (dm-2): warning: mounting fs with errors, running e2fsck is recommended So shame on me for not paying attention :( I then tried to mount using every backup superblock (one after another) and each attempt left this in my log: EXT4-fs (dm-2): ext4_check_descriptors: Checksum for group 0 failed (26534!=65440) EXT4-fs (dm-2): ext4_check_descriptors: Checksum for group 1 failed (38021!=36729) EXT4-fs (dm-2): ext4_check_descriptors: Checksum for group 2 failed (18336!=39845) ... EXT4-fs (dm-2): ext4_check_descriptors: Checksum for group 11911 failed (28743!=44098) BUG: soft lockup - CPU#0 stuck for 23s! [mount:2939] Attempts to restart e2fsck results in: # e2fsck /dev/mapper/candybox e2fsck 1.41.14 (22-Dec-2010) e2fsck: Group descriptors look bad... trying backup blocks... candy: recovering journal e2fsck: unable to set superblock flags on candy At this point, I decided it best to order some more drives and make an image using ddrescue Now two weeks later I have an image of the luks partition in a .img file. # ls -lh total 14T -rw-r--r-- 1 root root 14T Oct 25 01:57 candybox.img -rw-r--r-- 1 root root 271 Oct 20 14:32 candybox.logfile After numerous attempts using everything I could find online I could not coerce e2fsck to do anything on the image, so I used mkfs.ext4 -L candy candybox.img -m 0 -S and I was able to mount the dirty filesystem readonly without the journal and recover 960G of data. It gave all kinds of errors of various directories not existing and so forth but I was able to get some stuff. Which gave me some hope! I then ran e2fsck again and it had to recreate the root inode and gave a massive list of correcting group counts, I accepted the root inode creation and said no to everything else, leaving a completely empty filesystem. Re-ran again and said yes to all questions with the same result but now a "clean" but empty filesystem. extundelete gives me 0 recoverable inodes found. And now I'm stuck again, I can't come up with any other methods other than dropping to something like photorec which will give me an absolute mess with how large the filesystem was. I'm willing to re-copy the image from the original array and start over, if I can get any suggestions or ideas on a way to get more of my files back. I wish I could give more detailed logs of the commands that have run, but the output is long scrolled passed except for what gets logged to syslog and my memory is not as detailed due to the timeframe this has occurred over. Any help is greatly appreciated!

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How can I make a table move in JavaScript?

- by Michal Skrzypek

My problem is that I was creating a simple website the other day and I needed the content to move according to the button pressed. I managed to do so in CSS3, but the solution did not work for IE whatsoever. Therefore I would like to ask if there is a simple solution for that in js? I don't know js at all but I heard what I need is much easier in js than in css. Details: http://i42.tinypic.com/6yl4ia.png I need the table in the picture to move according to the buttons (which are labels to be exact). The visible area is a div. Here's the relevant code (without animation as I was not satisfied with it): body { background-color: #fff; color: #fff; padding:0px; } #bodywrapperfixed { width: 1248px; margin: 0px auto; position: relative; overflow: hidden; height: 730px; } #bodywrapper { display:block; background-color: #fff; width: 1248px; color: #59595B; padding-top:50px; font-family: 'Roboto', sans-serif; position: absolute; top:0px; left:0px; z-index:1; font-size: 60px; height:730px; } #bodywrapper img { width:400px; padding:15px 0px 20px 0px; } #texten { font-family: 'Roboto', sans-serif; font-size: 35px; padding:5px; } #textpl { font-family: 'Roboto', sans-serif; font-size: 25px; padding:5px; } table#linki { width: 110px; border: none; margin-top:15px; } label { display: block; height: 54px; width: 54px; color:#fff; font-family: 'Roboto', sans-serif; font-weight: 300; font-size: 35px; background-color: #117D10; text-align: center; padding:23px; } label:hover { background-color: #004F00; cursor: pointer; } input#pl { position: absolute; top: -9999px; left: -9999px; } input#en { position: absolute; top: -9999px; left: -9999px; } and the relevant HTML: <div id="bodywrapperfixed"> <div id="bodywrapperfloat"> <table id="ramka"> <tr> <td>random text</td> <td><div id="bodywrapper"> <center> <div id="texten"><div style="font-weight:300; display:inline-block;">Introducing the all-in-one entertainment system.</div><div style="font-weight:500; display:inline-block;"> For everyone.</div></div> <div id="textpl"><div style="font-weight:300; display:inline-block;">Przedstawiamy zintegrowany system rozrywki.</div><div style="font-weight:500; display:inline-block;">  Dla wszystkich.</div></div> <img src="imgs/xboxone.png"> <div id="texten"><div style="font-weight:300; display:inline-block;">Choose your version of the story:</div></div> <div id="textpl"><div style="font-weight:300; display:inline-block;">Wybierz swoja wersja opowiesci:</div></div> <table id="linki"> <tr> <td><label for="en">en</label><input id="en" type="checkbox"></td> <td><label for="pl">pl</label><input id="pl" type="checkbox"></td> </tr></table> </center> </div></td> <td>random text</td> </tr> </table> </div> </div> Here's what it looks like: http://ingame.lh.pl/thinkone/ Please help me.

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?Exadata??????DBFS

- by Liu Maclean(???)

?Exadata???DBFS ??????? 1. ??fuse RPM [root@dm01db01 ~]# yum install fuse Loaded plugins: rhnplugin, security This system is not registered with ULN. ULN support will be disabled. Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package fuse.x86_64 0:2.7.4-8.0.1.el5 set to be updated --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================================== Package Arch Version Repository Size ======================================================================================================================================================================== Installing: fuse x86_64 2.7.4-8.0.1.el5 el5_latest 85 k Transaction Summary ======================================================================================================================================================================== Install 1 Package(s) Upgrade 0 Package(s) Total download size: 85 k Is this ok [y/N]: y Downloading Packages: fuse-2.7.4-8.0.1.el5.x86_64.rpm | 85 kB 00:00 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : fuse 1/1 Installed: fuse.x86_64 0:2.7.4-8.0.1.el5 [root@dm01db01 ~]# yum install fuse-libs Loaded plugins: rhnplugin, security This system is not registered with ULN. ULN support will be disabled. Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package fuse-libs.i386 0:2.7.4-8.0.1.el5 set to be updated ---> Package fuse-libs.x86_64 0:2.7.4-8.0.1.el5 set to be updated --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================================== Package Arch Version Repository Size ======================================================================================================================================================================== Installing: fuse-libs i386 2.7.4-8.0.1.el5 el5_latest 71 k fuse-libs x86_64 2.7.4-8.0.1.el5 el5_latest 70 k Transaction Summary ======================================================================================================================================================================== Install 2 Package(s) Upgrade 0 Package(s) Total download size: 141 k Is this ok [y/N]: y Downloading Packages: (1/2): fuse-libs-2.7.4-8.0.1.el5.x86_64.rpm | 70 kB 00:00 (2/2): fuse-libs-2.7.4-8.0.1.el5.i386.rpm | 71 kB 00:00 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Total 71 kB/s | 141 kB 00:01 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : fuse-libs 1/2 Installing : fuse-libs 2/2 Installed: fuse-libs.i386 0:2.7.4-8.0.1.el5 fuse-libs.x86_64 0:2.7.4-8.0.1.el5 Complete! [root@dm01db01 ~]# yum install fuse-devel Loaded plugins: rhnplugin, security This system is not registered with ULN. ULN support will be disabled. Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package fuse-devel.i386 0:2.7.4-8.0.1.el5 set to be updated ---> Package fuse-devel.x86_64 0:2.7.4-8.0.1.el5 set to be updated --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================================== Package Arch Version Repository Size ======================================================================================================================================================================== Installing: fuse-devel i386 2.7.4-8.0.1.el5 el5_latest 28 k fuse-devel x86_64 2.7.4-8.0.1.el5 el5_latest 28 k Transaction Summary ======================================================================================================================================================================== Install 2 Package(s) Upgrade 0 Package(s) Total download size: 57 k Is this ok [y/N]: y Downloading Packages: (1/2): fuse-devel-2.7.4-8.0.1.el5.x86_64.rpm | 28 kB 00:00 (2/2): fuse-devel-2.7.4-8.0.1.el5.i386.rpm | 28 kB 00:00 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Total 21 kB/s | 57 kB 00:02 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : fuse-devel 1/2 Installing : fuse-devel 2/2 Installed: fuse-devel.i386 0:2.7.4-8.0.1.el5 fuse-devel.x86_64 0:2.7.4-8.0.1.el5 Complete! 2. ?? DBFS??? ?????? cd $ORACLE_HOME/rdbms/admin sqlplus / as sysdba Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options SQL> @prvtfspi.plb Package body created. No errors. Package body created. No errors. ?????dbms_dbfs_sfs package SQL> create tablespace dbfstbs datafile size 20g; Tablespace created. SQL> create user maclean_dbfs identified by oracle; User created. SQL> grant dba to maclean_dbfs; Grant succeeded. @@!!! SQL> grant dbfs_role to maclean_dbfs; Grant succeeded. 3. ??DBFS SQL> conn maclean_dbfs/oracle Connected. SQL> @?/rdbms/admin/dbfs_create_filesystem.sql dbfstbs mac_dbfs No errors. -------- CREATE STORE: begin dbms_dbfs_sfs.createFilesystem(store_name => 'FS_MAC_DBFS', tbl_name => 'T_MAC_DBFS', tbl_tbs => 'dbfstbs', lob_tbs => 'dbfstbs', do_partition => false, partition_key => 1, do_compress => false, compression => '', do_dedup => false, do_encrypt => false); end; -------- REGISTER STORE: begin dbms_dbfs_content.registerStore(store_name=> 'FS_MAC_DBFS', provider_name => 'sample1', provider_package => 'dbms_dbfs_sfs'); end; -------- MOUNT STORE: begin dbms_dbfs_content.mountStore(store_name=>'FS_MAC_DBFS', store_mount=>'mac_dbfs'); end; -------- CHMOD STORE: declare m integer; begin m := dbms_fuse.fs_chmod('/mac_dbfs', 16895); end; No errors. 4. ??mount point [root@dm01db01 ~]# mkdir /dbfs [root@dm01db01 ~]# chown oracle:oinstall /dbfs 5. ??library path ?OS # echo "/usr/local/lib" >> /etc/ld.so.conf.d/usr_local_lib.conf 6. ?????? export ORACLE_HOME=/s01/orabase/product/11.2.0/dbhome_1 [root@dm01db01 ~]# ln -s $ORACLE_HOME/lib/libclntsh.so.11.1 /usr/local/lib/libclntsh.so.11.1 [root@dm01db01 ~]# ln -s $ORACLE_HOME/lib/libnnz11.so /usr/local/lib/libnnz11.so [root@dm01db01 ~]# ln -s /lib64/libfuse.so.2 /usr/local/lib/libfuse.so.2 7. ??ldconfig [root@dm01db01 ~]# ldconfig [root@dm01db01 ~]# 8. ??fusermount??????? [root@dm01db01 ~]# chmod +x /usr/bin/fusermount [root@dm01db01 ~]# ls -l /usr/bin/fusermount lrwxrwxrwx 1 root root 15 Sep 7 03:06 /usr/bin/fusermount -> /bin/fusermount [root@dm01db01 ~]# ls -l /bin/fusermount -rwsr-x--x 1 root fuse 27072 Oct 17 2011 /bin/fusermount 9. ???????OS dbfs_client maclean_dbfs@dm01db01:1521/orcl /dbfs 10. ????nohup + &?????mount DBFS,???????????? [oracle@dm01db01 ~]$ echo "oracle" >> dbfs_pw [oracle@dm01db01 ~]$ nohup dbfs_client maclean_dbfs@dm01db01:1521/orcl /dbfs < dbfs_pw & [oracle@dm01db01 ~]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VGExaDb-LVDbSys1 30G 15G 14G 53% / /dev/sda1 502M 30M 447M 7% /boot /dev/mapper/VGExaDb-LVDbOra1 99G 20G 75G 21% /u01 tmpfs 81G 0 81G 0% /dev/shm dbfs-maclean_dbfs@orcl:/ 20G 120K 20G 1% /dbfs [oracle@dm01db01 ~]$ mount /dev/mapper/VGExaDb-LVDbSys1 on / type ext3 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) /dev/sda1 on /boot type ext3 (rw,nodev) /dev/mapper/VGExaDb-LVDbOra1 on /u01 type ext3 (rw,nodev) tmpfs on /dev/shm type tmpfs (rw,size=82052m) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) dbfs-maclean_dbfs@orcl:/ on /dbfs type fuse (rw,nosuid,nodev,max_read=1048576,default_permissions,user=oracle) [oracle@dm01db01 ~]$ ls -l /dbfs/ total 0 drwxrwxrwx 3 root root 0 Sep 14 05:11 mac_dbfs [oracle@nas ~]$ dbfs_client --------MOUNT mode: usage: dbfs_client <db_user>@<db_server> [options] <mountpoint> db_user: Name of Database user that owns DBFS content repository filesystem(s) db_server: A valid connect string for Oracle database server (for example, hrdb_host:1521/hrservice) mountpoint: Path to mount Database File System(s) All the file systems owned by the database user will be seen at the mountpoint. DBFS options: -o direct_io Bypass the Linux page cache. Gives much better performance for large files. Programs in the file system cannot be executed with this option. This option is recommended when DBFS is used as an ETL staging area. -o wallet Run dbfs_client in background. Wallet must be configured to get credentials. -o failover dbfs_client fails over to surviving database instance with no data loss. Some performance cost on writes, especially for small files. -o allow_root Allows root access to the filesystem. This option requires setting 'user_allow_other' parameter in '/etc/fuse.conf'. -o allow_other Allows other users access to the file system. This option requires setting 'user_allow_other' parameter in '/etc/fuse.conf'. -o rw Mount the filesystem read-write. [Default] -o ro Mount the filesystem read-only. Files cannot be modified. -o trace_file=STR Tracing <filename> | 'syslog' -o trace_level=N Trace Level: 1->DEBUG, 2->INFO, 3->WARNING, 4->ERROR, 5->CRITICAL [Default: 4] -h help -V version --------COMMAND mode: Usage: dbfs_client <db_user>@<db_server> --command command [switches] [arguments] command: Command to be executed, e.g., ls, cp, mkdir, rm switches: Switches are described below for each command. arguments: File names or directory names NOTE: All database pathnames must be absolute and preceded by dbfs:/ Commands ls dbfs_client <db_user>@<db_server> --command ls [switches] target Switches: -a Show all files including those starting with '.' -l Use a long listing format. In addition to the name of each file print the file type, permissions, size, user and group information -R List subdirectories recursively cp dbfs_client <db_user>@<db_server> --command cp [switches] source destination Switches: -r, -R Copy a directory and its contents recursively into the destination directory rm dbfs_client <db_user>@<db_server> --command rm [switches] target Switches: -r, -R Removes a directory and its contents recursively mkdir dbfs_client <db_user>@<db_server> --command mkdir directory_name Examples dbfs_client ETLUser@DBConnectString --command ls -l -a dbfs:/staging_area/directory1 dbfs_client ETLUser@DBConnectString --command cp -R /tmp/1-Jan-2009-dump dbfs:/staging_area dbfs_client ETLUser@DBConnectString --command rm dbfs:/staging_area/hello.txt dbfs_client ETLUser@DBConnectString --command mkdir dbfs:/staging_area/directory2 [oracle@dm01db01 ~]$ ls -lh /tmp/largefile -rw-r--r-- 1 oracle oinstall 2.0G Sep 14 08:50 /tmp/largefile [oracle@dm01db01 ~]$ time dbfs_client maclean_dbfs@dm01db01:1521/orcl --command cp /tmp/largefile dbfs:/mac_dbfs Password: /tmp/largefile -> dbfs:/mac_dbfs/largefile real 0m11.802s user 0m0.580s sys 0m2.375s ?Exadata?????2G?????? DBFS???11s => 200MB/s

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