Cloudera面经 - 未名空间MITBBS历史存档

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Cloudera面经

Cloudera面经# JobHunting - 待字闺中

l*y2016-04-22 07:04

1 楼

电面:
1. 实现一个histogram, 能inc/get每种metric的counter.
void incCounter(String metric)
int getCounter(String metric)
2. followup: 修改以上histogram应付并发读写
onsite:
1. how to create a generic singleton class
2. 求integer流中最近k条数据的avg
public class KAvg {
public KAvg(int k );
public void add(int x);

public int getKAvg();
}
followup: 并发add/getAvg
3. 用AtomicLong或compareAndSwap原语实现spin_lock, spin_semaphore, reentrant_
spin_lock
描述spin_lock的self deadlock情况
4. design whatsapp
5. behavior/ team conflict/strength/weakpoint
6. go through background

e*a2016-04-22 07:04

2 楼

did u work out these concurrency programming questions?

l*y2016-04-22 07:04

3 楼

yes, lz is an expert on concurrency.

【在 e***a 的大作中提到】

: did u work out these concurrency programming questions?

z*s2016-04-22 07:04

4 楼

赞分享 offer情况如何？

【在 l***y 的大作中提到】

: 电面:
: 1. 实现一个histogram, 能inc/get每种metric的counter.
: void incCounter(String metric)
: int getCounter(String metric)
: 2. followup: 修改以上histogram应付并发读写
: onsite:
: 1. how to create a generic singleton class
: 2. 求integer流中最近k条数据的avg
: public class KAvg {
: public KAvg(int k );