Bogart, Anne, 1951- author

Goebbels, Heiner, author

Krishnan, Sarasa, author

My session driver of choice for CodeIgniter is database. A while ago, I noticed millions of rows in the corresponding database table. That means that garbage collector was not working. I checked config.php for sess_regenerate_destroy, but it was already set to false. It was really weird because the problem seemed to have come out of nowhere – not much ago things were working just fine.

After a short investigation, I found out this was and still is a common problem for those who had upgraded their CodeIgniter version from 2.x to 3.x. Turns out, the later possesses heavy changes for Sessions library. And most importantly – fundamental changes in dealing with garbage: CodeIgniter 3.x relies on PHP's native grabage collector. So, in order to get things working again, we need to configure PHP properly.

The Solution

Today there are three PHP-native settings for dealing with session garbage collector. CodeIgniter's Session library has already taken care of one of them – gc_maxlifetime – so there's no need for an extra touch here. The problem lies within the rest: session.gc_probability and/or session.gc_divisor. These two determine when the garbage collector is running. Here's what php.net says:

session.gc_divisor coupled with session.gc_probability defines the probability that the gc (garbage collection) process is started on every session initialization. The probability is calculated by using gc_probability/gc_divisor, e.g. 1/100 means there is a 1% chance that the GC process starts on each request.

In my case, using ini_get() revealed the following values: 0 and 1000. The equation 0/1000=0 meant there was no chance the garbage collector would even run.

Finally, I solved the problem by using the values officially stated as default and by putting the following lines of PHP code into config/config.php file:

ini_set( 'session.gc_probability',	1 );
ini_set( 'session.gc_divisor',		100 );

Theoretically, this means that the garbage collector usually runs once every 100th request. It's more than enough, but it is up to you whether that causes too many unnecessary hits to database. An alternative solution for heavy-traffic websites could be having a 0% probability on the production site and a Cronjob-based script which removes database rows of the expired sessions.

Hayden Library - T174.7.P46 2012

Hayden Library - TA418.9.N35 S967 2012

Barker Library - QC176.8.N35 N35 2013

Hayden Library - TA418.9.N35 S656 2013

Hayden Library - TA418.9.N35 N3664 2012

Online Resource

Online Resource

Barker Library - TK7874.85.S45 2015

Barker Library - TK7874.85.N37 2018

Terror alerts and swine flu scare did not dampen the spirit of Mumbaikars as they welcomed the elephant headed-god.

An unwanted child, a street urchin, a knife-wielding gang member and a child labourer — Basu Rai endured the vicissitudes of fate. But after his rescue and rehab, he dedicated his life to saving other street children.

The Centre will push for key reforms including the provision of incentivising civic agencies for good work & making officials concerned accountable for illegal construction or unauthorized development under their jurisdiction.

Singapore is one of India's closest partners in Asia. In his first visit to meet PM Narendra Modi after the formation of the NDA government, K Shanmugam, Singapore's foreign minister, tells Indrani Bagchi they would build some of India's new smart cities and involve themselves in skill development programmes in India.

Singapore has appointed Brigadier General Ravinder Singh as its next army chief, the first Sikh in nearly 30 years to be given the force's baton.

A group of Indian professionals in Singapore has produced a film, 'Mausams', which captures the tensed personal moments and challenges of working a city.

Indian teachers are most sought after in Singapore schools with increasing number of teachers being recruited to teach not only Indian languages but also other subjects.

The fake message was fact-checked by the PIB which said in a tweet that the "Government is doing no such thing."

'I lived in a chawl for 33 years, aur potty ke liye line lagaya, holding a dabba in my hand (I would queue up to go to the loo, with a bucket in my hand). Even after I became a hero, I had to stand in line. It has become so ingrained in my bones that it cannot come out easily.'

'If you listen to the title track of Judgementall Hai Kya, you will find some crazy things happening in it -- from crazy laughter to as if someone is inside your mind.'

'It was fun trying to regulate ourselves and keep it in the family zone and yet, be tongue-in-cheek.'

'We have actually made the film for children and intellectual people.'

'You have to sell yourself as a product in Bollywood.'

'Pagalpanti has no double meaning, no exposure, no bloodshed... Even the villain is very cute!'

'Both Kangana and Rangoli really love me and that's because they give me so much of time and attention from their lives.'

'I truly believe that Durga resides in us, women,' says Rani Mukerji. 'If a woman believes that and she chanalises that energy, she will be able to ward off a lot of things.'

'Chhapaak is definitely the most challenging film of my career.''I have gone through many emotionally challenging experiences, but none affected me the way it did when I played an acid attack survivor.'

'Shubh Mangal Zyada Saavdhan will make you go home and think.'

Please Join us for an American Folklife Center Summer Music Jam: Klezmer led by Howard Ungar and Seth Kibel

September 12, 2019, 7:00 to 9:00 pm 
Veterans History Project Information & Welcome Center (LJ-G51) 
Thomas Jefferson Building, Library of Congress

The American Folklife Center's series of informal jams to celebrate our living folk traditions, and to bring to life the collections from our vast ethnographic archive continues in 2019. This jam will be led by Howard Ungar and Seth Kibel. So grab your violin, clarinet, trumpet, or other instruments, and come on over to the Library of Congress for the Klezmer Jam.

Seth Kibel is the leader, clarinetist, and composer for The Alexandria Kleztet, an innovative award-winning klezmer band he founded in the Baltimore/Washington area. The band has released four albums that all recieved the Washington Area Music Award for best album upon their release. In addition to his activities with The Kleztet, Seth has fronted a variety of swing and jazz groups, including Bay Jazz Project.

Klezmer trumpeter Howard Ungar founded the DC Klezmer Workshop. Howard has been playing klezmer trumpet since he attended his first KlezKamp in 1999 and has attended many KlezKamp, Yiddish New York, and KlezKanada festivals. He is a founding member of the DC based klezmer band Mrs. Toretsky’s Nightmare, who have played at numerous weddings, bar-mitvahs, and holiday events. You can also hear him playing trumpet with the DC based Machaya Klezmer Band at the Washington Folk Festival and other venues around town. 

This event is co-sponsored by the DC Klezmer Workshop

Request ADA accommodations five days in advance at 202-707-6362 or ADA@loc.gov

Find more information at this link!