Hi:
i have writen a script that needs a finishing
Pourpouse is to find a particular error in a file after we enter file name
and the return msg would describe if >there is a error -> "Contact DBA"
if there is no oracle error ->"No ora error found."
for the same i have written a script... (6 Replies)
Hi all,
Am intermittently getting the following errors on one of my databases.
Errors in file /oracle/HRD/saptrace/background/hrd_psp0_13943.trc:
ORA-27300: OS system dependent operation:fork failed with status: 12
ORA-27301: OS failure message: Not enough space
ORA-27302:... (1 Reply)
All:
Can sombodoy help me out with a sed command? Assume I have the following:
PRI =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.0.3.7)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = pri)
... (3 Replies)
Hi - I am trying to grep all "ORA" errors in a log files.I have to grep all ORA errors except one error for example ORA-01653.How can exclude that error in "grep" command?
In following "grep" command I want to exclude "ORA-01653" error
grep -i ORA alert.log >>/tmp/ora_errors.txt
... (7 Replies)
Hi All ,
I am new to programming and here is what i am trying to achieve , i am taking a list of mounted filesystems (based on the HLQ) , passing it on to a txt file and then copying the file to a DSN .The code i am using :
df | grep WAST.*WASCFG.*ZFS | awk '{print $2}' | sort -o log.txt |... (5 Replies)
Hi,
I would like to modify, in script schell, the line right above (DESCRIPTION and check three cases :
if line contain ".world" then line=line-".world" concat "," concat line
if line dont contain ".world" then line=line concat "," concat line concat".world"
else line=line
Keep in... (10 Replies)
Hi,
I am trying to write a script or command to remove a section from tnsnames.ora file
in the following example I would like to remove tns_alias2 section
$ cat tnsnames.ora
tns_alias1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = host1 )(PORT = 1521))
... (3 Replies)
Hi,
User claim that job is running slow from their end.
I DBA found in database the below errors in alert log file.
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.10.3/RECO_DM01_CD_01_drm01 at offset 13335789568 for data length 1048576
ORA-27626: Exadata error: 2201 (IO... (2 Replies)
Discussion started by: Maddy123
2 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)