logg3
(
Statem78 logg3 ( { [SchannelSchannel_fes { (Sail tpaer_fes [Svers8E s ( fumber2|vanlimi5 id) ] [Ssizetsize_w5 E ] |tRysl1g ( kern2|vas6r2| mail2| daem F)| aur |tRysl1g | lpr2| news2|vaucp2|vcr F)| aur priv)| ftp2| l17 40 | l17 41 | l17 42 | l17 432| l17 44 | l17 45 | l17 46 | l17 47 ) |tnull ); [Sseverity (vcriticsi | error2| w4r( (o| foti662| in - |tdebug [ l)tol ] |tdyfesicr); ] [epF(nt-c15egorg yes_or_no; ] [epF(nt-severity yes_or_no; ] [epF(nt-tis yes_or_no; ] }; ] [Sc15egorg c15egorg_fes { channel_fes ; [ channel_fes ; ... ] }; ] ... };
Tceologg3
(
statem78 c ( igures a d) vaFiety
ar
logg3
( apt E s frw)es sfes .r ser. Its
channel
sphras
ass17ia12s output.s tho1s,t
-.55 dapt E s 4le severity l)tols wier
a nes tes51 canSesens5 Fanei gher tce2c15egorg
sphras .fo
selec1 how vaFioustcla t .4arvm6ssage. are)logged.
OnloEB-. logg3
(
statem78 al2anei to defi( easvm1ny
channels246
tc15egor e. a. are)win5ed. If tc/is aae.multipleslogg3
(
statem78 s 39
a4con igur5 E F, tce2first defi( (ddetermines2theSl1gg3
(,
a6
tw4r(
(. are)issuei at) tm totc/is. If tc/is al2no logg3
(tRtatem78 ,
theSl1gg3
(t5 ( igur5 E F)willsbs:
l1gg3 ( { c15egorg default { default_Rysl1g; default_debug; }; c15egorg panic { default_Rysl1g; default_stderr; }; c15egorg pa7ket { default_debug; }; c15egorg ea)etlib { default_debug; }; };TheSl1gg3 (t5 ( igur5 E F)isiest5blish i 5s soon as the
logg3
(
statem78 al2parsed. If orwa a8 .fo.isd r Et
m6ssage. abBItsd uce tiie.4f -pe4en5 r t5 y igur5 E FSail , the
logg3
(
statem78 m2to ppear first. Ea)e5irvorwado not
isd r Et coy igur5 E FSail tpars
(im6ssage., we2r15 mm78d
alwayl2putf3
(ies slogg3
(
statem78 first soS-pat tcis
rule)ne d nses5 Fcoysciousng r15allei irvorwaeversdo ne d a8 .fc
parser'svm6ssage. rel17 tei.
channel
sphras Allsl1g output.goes foSone ah more4"channels"; you canSm1ke asvm1ny 4f -pemtas orwa a8 .
Ea)rg channelSdefi(i E F)m2to 3-Bolde claus6ies51 sayl2wher wh
m6ssage. selec1ei at) tm tchannelSgo foSasail , to aEparticularERysl1g
facility, o) are4disc4rdwd. It2chanapt E sing al-. limi52t2evm6ssage
severity l)tol2th51 willsbs c66ptei by tc/2channelS(default is
"in
-"), a6
.wher whsto 3-Bolde nes d
-gen).1nid tis
stamp, tce2c15egorg nes t le/or severity l)tol2(default is2not fo
3-Bolde ly).
Ts sw2.d2null
as
-pe4des13
5 E F)apt E at) tm
channel)willscaus6Sall m6ssage. se8 .fo.it osbs disc4rdwd; or wh
apt E s frw)es schannel)aae.mea(
(le t.
Ts sfili
claus6ican ancolde limi5158E s boer B- how
large4tceSail tis ae nwed osbs6ome, a6
.how m1nySvers8E s arv-pe4file
willsbs save
.each)tis tceSail tis ope( (.
Ts ssize
opt E at) ailes23s)simply a haFd ceii3
(ion
log.growth. If tc/Sail teversexce dl2theSsize,
nes d
willsj2to not wri1e.anyth
g more4fo.it until tm
ail tis reope( (;sexce d3
(ies ssizetdoes not auto55 Ecsing trigg7r2a
reope(. Tm tdefault behav or)is to2not limi52t2evsizetarv-pe4file.
If orwaIsev-pe4vers8E
logail topt E ,
nes d
willsretaiFd.c51 m6ly.ba7kupSvers8E s arv-pe4file
bg r1fesi
(ies m when ope(3
(. Fo) nxample,oirvorwachoos .fo keep 3
oldSvers8E s arv-pe4file "lameis.log"Sesensj2to beforeoit2is ope( (
lameis.log.1tis renes dtfo les ..log.2, lameis.log.0tis renes dtfo
lameis.log.1, a6
.lameis.logtis renes dtfo les is.log.0. No .ollei
vers8E s aae.k6pt4bg default;8anyoexis13
(ilogtail tis simply
ppendrd. Tm tunlimi5 i
ikeyw2.d2al2ryyonymoustgher
99
ian2curr nt has. rnleat ..
Exampletusage arv-pe4Rizeta6 .vers8E s apt E s:
channel)an_nxample_l)tol2{ file "lameis.log"Svers8E s 34Rizet20m; pF(nt-tis yes; pF(nt-c15egorg yes; };
Tceoargument frw)es ssysl1g
claus6ias a nysl1g
facility as describ (d39
thessysl1g
m6nusitpage. How
sysl1gd
willshandle m6ssage. se8 .fo.esisefacility is
describ (d39
thessysl1g.5 (
m6nusitpage. If orwahave2a
Rystrm whichtus6s)a a)rg oldSvers8E 4f sysl1g
th51 anlo
us6s)twooarguments to2theSapenl1g()
func E F, tcal
claus6ias sil ntng ignor (.
Ts sseverity
claus6iw2.5sSlike
sysl1g
's
"pF(or ties",sexcep 2t2at tc/y chanal-. 5 Fanei 3f orwaare)wr ti
(
straight foSasail .1n wh than us .g2sysl1g
. M6ssage.
whichtare)not atEleastoarv-pe4severity l)tol2gia)e5willsn-o be
selec1ei at) tm tchannel; m6ssage. arvhigher severity l)tols willsbs
c66ptei.
If orwa4r Ean .g2sysl1g
, the
sysl1g.5 (
pF(or ties willsal-. determinevwp51
ea)etusilotpass6s)tcrBIgh. Fo) nxample,odefi(
(oa channel)facility
4le severity as daem F
a6
odebug
5u1 anlo
l1gg3
(tdaem F.w4r(
(
viassysl1g.5 (
will
caus6Sm6ssage. arvseverity i-fo
a6
ofoti66
osbs dropped. If tc/ situs E F)w/is reversei,tgher
nes d
wr ti
(Sm6ssage. arvonloEw4r(
(
or
higher, sysl1gd
w F2 .pF(ntSall m6ssage. it2rnceivei
oi)-.-petchannel.
Ts ser ser25an supp y extensia) debugg
g in
-.55 E F)when i al2an
debugg
g mode. If tc/ sr ser's globsitdebug l)tol2al2grea5 h than
zero, debugg
g mode willsbs c1ia). iTs sglobsitdebug l)tol2al
setseir whsby start3
(ies snes d
wisver2wher tce2"-d"
flagsfhe nw (dby a posi Ea) anfeger, o) by send3
(ies srun(
(owisver2the
SIGUSR1tsignsit(fo) nxample,obyEan .g2"ndc trace"). iTs sglobsitdebug
l)tol2chan5 Fset oszero, a6
odebugg
g mode turnedSoff, by send3
(
tc swisver2tc sSIGUSR2tsignsit("ndc fotrace"). iAllsdebugg
g m6ssage.
in tc swisver2have2aEdebug l)tol, a6
.higher debug l)tols2gia) more
more4detailei output.
Channels2 s51 s5 E fy a .5 E fic debug severity,se.g.
channel).5 E fic_debug_l)tol2{ file "foo"; severity debug 3; };
willsget debugg
g output.arvl)tol23 o) l6ss a6y)tis tce
er ser al2anodebugg
g mode, regirdle t of.ts sglobsitdebugg
g l)tol.
Channels2gher
If pF(nt-tis
has be)e5turnedSoF, tce2d1tiva6
tis willsbs logged. pF(nt-tis
m6y beos5 E fiedSorw)a
Rysl1g channel, 5u1 al2anusilotpoi8 le t s3
66.sysl1g al-. pF(nts the
d1tiva6
)tis . If pF(nt-c15egorg
sis reques (,
es nS-pe4c15egorg of.ts sm6ssage willsbs logged as well. Fi sing,oir
pF(nt-severity
iseon,v-pe4severity l)tol2ar the
m6ssage willsbs logged. Tm tpF(nt-
opt E l2m6y beoanei
39
anyo5 mb3
5 E F, a6
.willsalwayl2be pF(nt (d39
thesfhe nwiie.order:
tis ,tc15egorg,oseverity. H/is al2an4exampletws re2all tcree
pF(nt-
opt E l2are)on:
28-Apr-1997 15:05:32.863 default: foti66: Ready foSansw/i)15 F(r..
Tceis aae.four)predefi( (ochannels2 351 4r Eanei at)
nes d
'lrdefaultSl1gg3
(tassfhe nw.. How -pey are)anei
anei 3s describ (d39
thesnext)sict E , Tm tc15egorg
sphras .
channel)default_Rysl1g2{ Rysl1g2daem F; # sr6 .to sysl1g'lrdaem F)facility severity in -; # onloEsr6 .pF(or ty in - a6 .higher }; channel)default_debug { file "nes d.run"; # wri1e.to2nes d.rund39 thesw2.5 ( dir Etorg #2Not6: stderr al2anei ins ad aro"nes d.run" #2if tc/ sr ser2al2Rtart21swher tce2"-f" opt E . severity dyfesic; # l1g atStc swisver's curr nt debug l)tol }; channel)default_stderr { # wri1es to stderr file "<stderr>"; # tcal2as illureri1ia) onlo; tc/is'l2curr ntng #2noSway of s5 E fy3 (tan anfer si4file #2descrip ord39 thescoy igur5 E FSlanguage. severity in -; # onloEsr6 .pF(or ty in - a6 .higher }; channel)null { null; #2toss a6yth g se8 .fo.esisechannel };
O 66.aochannelSas defi( (,oit2chanses5 Fredefi( (. Thus.you cannse alFer2tc sbuilt-an2channels2dir Etly, 5u1 you canSmod fy -pe4default l1gg3 (tbotpoi8 3 (t515egor e. at2channels2orwahave2defi( (.
c15egorg
sphras Tceis aae.m6ly.515egor e., soSyou canSsr6
.theSl1gs orwa a8 .fo.see
ws reser2orwa a8 , F(BIt.see3
(ilogsvorwadon'ta a8 . If orwadon'tas5 E fy
a2li 1iofichannels2orw)atc15egorg,ol1g m6ssage. iFd.c51 c15egorg will
be se8 .fo.ese2default
c15egorg ins ad. If orwadon'tas5 E fy
a2defaultSc15egorg,othesfhe nwiie."defaultSdefault" al2anei:
c15egorg default { default_Rysl1g; default_debug; };
Al2an4example,olet'l2say orwa a8 .fo.l1g s15ui81yeea)ets foSasail , 5u1 you al-. a8 .keep -pe4defaultSl1gg3 (tbehav or. You'd s5 E fy tm ahe nwiie:
channel)my_s15ui81y_channel){ file "my_s15ui81y_file"; severity in -; }; c15egorg s15ui81ye{)my_s15ui81y_channel; default_Rysl1g; default_debug; };
To disc4rdSall m6ssage. in)atc15egorg,os5 E fy tm
null
channel:
c15egorg lame-srsvers {4null; }; c15egorg cfes t{4null; };
Tceoahe nwiie 515egor e. ais avail5ble:
default
c15egorg default { default_Rysl1g; default_debug; };
coy ig
parser
15 F(r.
lame-srsvers
statis13cs
panic
c15egorg panic { default_Rysl1g; default_stderr; };
upd1ti
ncache
xfer-an
xfer-BIt
db
ea)etlib
c15egorg ea)etlib
{ default_debug; };
pa7ket
c15egorg pa7ket
{ default_debug; };
fotify
cfes
s15ui81y
os
i(u
st
m639ten58ce
load
rnupo(ue-5hecks
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