Reading Time: < 1 minute A collection, I will add my comments later. Symptom: PermGen run out of space Memory leak Overview (Mark Thomas) http://people.apache.org/~markt/presentations/2010-11-04-Memory-Leaks-60mins.pdf Memory leak happened in multiple deployment (more likely happens in development) http://stackoverflow.com/questions/7788280/memory-leak-when-redeploying-application-in-tomcat Tomcat 7 (Mark Thomas) http://java.dzone.com/articles/memory-leak-protection-tomcat quote… Application or library code that can trigger this situation include: JDBC driver registration Some logging frameworks Storing

Reading Time: 2 minutes Timberland Ledge Low Leather Hyper Mesh Gore-Tex®. My first pair of Timberland shoes. Bought it from timberland.com for about $65 to $70 on Sept 2011. It did not disappoint. The water proof feature works as claimed. I worn it for over 3 years, for mostly daily and some hiking. I would definitely buy it again.

Reading Time: 2 minutes I’ve been a JCC member since early 2012. Having been in St. Louis since late 2000 and in Creve Coeur since 2005, I found JCC is really a gem for fitness. For me it’s mostly about swim and walk on treadmill. But there is more. I met interesting people (seniors), or in JCC terms, mature

Reading Time: 2 minutes I decided to upgrade to iOS 7.1.3 to iOS 8 recently due to the t-mobile wifi calling feature which is only available on iOS 8. Previously I tried to delay the update due to the main reason: my iPhone 5s is almost full and I need to back up and delete photos. I know people

Reading Time: < 1 minute ====== sawyer and serenity going for special walk. serenity pick leaves. sawyer picked up egg and put in nest. sawyer pet chick to sleep. serenity bake some cookies. serenity is happy. sawyer is happy. sawyer goes for medium one, serenity feeds the chick. Sawyer and serenity go to the park. goes to school in the

Reading Time: 2 minutes Now we have 2 kids (one 7 month old baby, one almost 5), we also got quite a few car seats. First the infant car seats, we got a Graco snug and ride car seat for Serenity our old daughter. Something like this one, the seat has travelled to China and is still at her

Reading Time: 2 minutes I have been doing programming for over 14+ years, and from time to time I did pair programming (mostly debugging problem). Since early last year I have been doing more pairing, mostly due to the hints from above. I have mixed feeling on this, mostly along the lines of advantages of disadvantages talked about here

Reading Time: 2 minutes I talked about this last year, in this post and that post. The bad news is, they are back. Couple weeks ago, when I went to dealership and install the new battery on Sienna, the service advisor mentioned there are some biting on the cables, and I said “yeah I know, last year I have

Reading Time: 2 minutes (2-6-15) So I guess this is common phenomena in 2 kids family. My older daughter recovered, and my younger daughter got sick. (2-2-15) Yoyo got sick today. She has been coughing for a while, mostly dry cough, but it got worse last few days, and last night (this morning) she just could not fell back

Reading Time: < 1 minute I have been coughing for over a year. It’s very hard to get insurance pre-authorization to get CT scan in the US, according to my primary care doctor. She said if I am willing to self-pay, it’s not too expensive. So yesterday I took the plunge, I went to Metro Imaging directly, paid the fee