Massimo:
1. This is with Apache.
2. print db(db.data).select('sum(length(data.body)
+length(data.body1)+length(data.body2)+length(data.body3))')
Answer: 1764948I am looking at "ps aux" right now. Under VSZ column, there's 141M. Resource is still not released since last night. On Mar 4, 8:27 am, Massimo Di Pierro <[email protected]> wrote: > I do not think it is a memory leak. > > Please run two tests: > 1) What do you get with run with the built-in server instead of > apache? > > 2) what is the output of > > print db(db.data).select('sum(length(data.body) > +length(data.body1)+length(data.body2)+length(data.body3))') > > I suspect it may be a big numbers you are fetching all your records at > once. > > On Mar 4, 12:41 am, VP <[email protected]> wrote: > > > My app has utilized much RAM over time, so I created a simple app to > > replicate the problem. This is what I found out. > > > First of all, the app: > > > ++ Model (database is postgres): > > db.define_table('data', > > Field('body','text',requires=IS_LENGTH(262144)), > > Field('body1','text',requires=IS_LENGTH(262144)), > > Field('body2','text',requires=IS_LENGTH(262144)), > > Field('body3','text',requires=IS_LENGTH(262144))) > > > ### I populate the database with about 1500 entries > > #from gluon.contrib.populate import populate > > #populate(db.data,100) > > > ++ Controller: > > def index(): > > return dict( data = db().select(db.data.ALL) ) > > > ++ View/default/index.html: > > {{extend 'layout.html'}} > > {{i=1}} > > {{ for d in data: }} > > {{=i}}. {{=d.body}} {{=d.body1}} {{=d.body2}} {{=d.body3}}. > > {{i+=1}} > > {{ pass }} > > > ====================================================== > > > Apache configuration: 5 processes, 1 thread (more than 1 threads > > will cause WSGI premature script error as previously described). > > > ====================================================== > > > Result (this is with 1.92.1; 1.91.6 had same problem) > > > A fresh apache restart gives each of 5 processes about 43MB. > > > After using ab to stress test with 20 connections, 10 seconds, > > repeated several times, RAM starts crawling up to about 130MB per > > process. > > > The RAM appears to be stuck there at 130MB/process and not released. > > > At this point the RAM per process does not get increased with repeated > > testing... BUT Apache starts getting this error: > > > IOError: failed to write data > > mod_wsgi (pid=12689): Exception occurred processing WSGI script '/home/ > > vphan/web2py/wsgihandler.py'. > > <<< > > > ====================================================== > > > This is with the simple app above. With my real app, RAM keeps > > getting increased and not released. > > > It seems that if I load many rows (each with much data) into memory, > > we see this problem. > > > Does the DAL leak memory? > >
