mysql - Java Running at close to 100% CPU -


too logging activity on weekend led following error being thrown coldfusion:

message:    no space left on device stacktrace: java.io.ioexception: no space left on device @             java.io.fileoutputstream.writebytes(native method) @              java.io.fileoutputstream.write(fileoutputstream.java:269) @              coldfusion.compiler.neotranslator. ......

by morning pages on coldfusion web site not loading @ all. disc (12gig) on 99% used up. moved several files second disc , it's @ 80%, lower it's been. we're going direct logging activity second disc (100gig) prevent repeat. having created space on disc restarted apache , coldfusion still pages not loading.

when run top -h appears java running @ close 100% cpu. have clue what's going on or info need provide can figure out?

the set aws, ubuntu 13.04, coldfusion 10, mysql (rds).

update

i have made strange helpful observations. i still trying locate tool getting thread dumps. whenever restart coldfusion, pages load fine , cpu usage seems normal, 0.7 - 1.5% once in while spikes of 10% can seen. there's 1 particular page, when try load, causes cpu uses rise 97% always. pages load fine have simple query reading data 1 table. problematic page has inner join, , reads data 2 tables. don't know how helpful think consistent insignificant.

update 2

and since issue started following errors appeared first time , there're hundreds of lines of it:

[2243:140630871263104] [error] ajp_send_request::jk_ajp_common.c (1649): (cfusion) connecting backend failed. tomcat not started  or listening on wrong port (errno=111)  // ,  [2234:140630871263104] [info] ajp_connect_to_endpoint::jk_ajp_common.c (1027):  failed opening socket (127.0.0.1:8012) (errno=111)  // ,   [2756:139822377088896] [info] jk_handler::mod_jk.c (2702): no body status=500  worker=cfusion

update 3 - resolved

after stripping "offending" page of code in , replacing plain text , tried load page several times, realized coldfusion not loading live pages. loading cached compiled versions of pages, found in subfolder named <cf-root>/cfusion/wwwroot/web-inf/cfclasses. removing (or renaming) subfolder resolved issue.

you want provide thread dumps, few of them taken @ few seconds interval, , gc logs.

thread dumps can produced jstack (a tool provided in jdk's bin directory), , garbage collector logs must activated beforehand.


Comments

Post a Comment

Popular posts from this blog

java - pagination of xlsx file to XSSFworkbook using apache POI -

right in code, reading xlsx file, xssfworkbook, , writing database. but, when size of xlsx file increases, causes outofmemory error. can not increase server size, or divide xlsx file pieces. tried loading workbook using file (instead of inputstream), didn't either. i looking way read 10k rows @ time (instead of entire file @ once) , iteratively write workbook , database. is there way apache poi? poi contains called "eventmodel" designed purpose. it's mentioned in faq : the ss eventmodel package api reading excel files without loading whole spreadsheet memory. require more knowledge on part of user, reduces memory consumption more tenfold. based on awt event model in combination sax. if need read-only access, best way it. however, may want double check first if issue somewhere else. check out this item : i think poi using memory! can do? 1 comes quite lot, reason isn't might think. so, first thing check - what's source of prob...
Read more

Unlimited choices in BASH case statement -

consider simple bash snippet: case $option in 1) image=${options[0]%.tar} ;; 2) image=${options[1]%.tar} ;; 3) image=${options[2]%.tar} ;; 4) image=${options[3]%.tar} ;; *) echo "invalid option" exit 1 esac in real script numbers goes 30. makes pretty long. can somehow specify cases variable? something this: case $option in $i) image=${options[$(($i-1))]%.tar} any pointer appreciated. you can match against multiple patterns in single clause: case $option in 1|2|3: echo "$option one, 2 or three" ;; esac if still typing you, can use simple pattern matching: case $option in # following matches # - single-digit numbers 0-9 # - two-digit numbers starting either 1 or 2 # - number 30 [0-9]|[12][0-9]|30) image=${options[$(($option-1))]%.tar} ;; *) echo "invalid option" 1>&2 exit 1 esac
Read more

apache - How do I stop my index.php being run twice for every user -

we've got webapp initial html served using apache , php. i noticed index.php being run twice every request. seems caused / effected rewrite rules in our .htaccess - rewritecond %{http_host} ^(www\.|hotels\.)ourdomain\.com$ [nc,or] rewritecond %{server_name} ^(www\.|hotels\.)ourdomain\.com$ [nc] rewriterule (.*) http://ourdomain.com/$1 [r=301] rewriterule ^hotels/([^/]+)/?\??(.*)$ ?d=$1&$2 [qsa] the final rule moving parameter url path query string. i.e. http://ourdomain.com/hotels/vegas?someparam=1 becomes http://ourdomain.com?d=vegas&someparam=1 if go directly query string version index.php run once. if use url redirected, index.php run twice (i'm checking adding error_log('end of index.php') file). so example going http://ourdomain.com/hotels/paris hits file twice http://ourdomain.com?d=paris hits once. i've seen this question , had @ blog mentioned , , can't find empty string url's (i've tried using yslow process). ...
Read more