app长时间处于后台报错如下

[yx1025]

java.lang.OutOfMemoryError: pthread_create (1040KB stack) failed: Try again
at java.lang.Thread.nativeCreate(Thread.java)
at java.lang.Thread.start(Thread.java:883)
at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:975)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1382)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118)
at com.qiniu.android.dns.dns.DnsResolver.request(DnsResolver.java:114)
at com.qiniu.android.dns.dns.DnsResolver.lookupHost
at com.qiniu.android.dns.dns.DnsResolver.resolve(DnsResolver.java:52)
at com.qiniu.android.http.dns.HttpDns.lookup(HttpDns.java:44)
at com.qiniu.android.http.dns.DnsPrefetcher.preFetchHost(DnsPrefetcher.java:299)
at com.qiniu.android.http.dns.DnsPrefetcher.preFetchHosts(DnsPrefetcher.java:265)
at com.qiniu.android.http.dns.DnsPrefetcher.preFetchHosts(DnsPrefetcher.java:237)
at com.qiniu.android.http.dns.DnsPrefetcher.checkWhetherCachedDnsValid(DnsPrefetcher.java:191)
at com.qiniu.android.http.dns.DnsPrefetchTransaction$4.run
at com.qiniu.android.transaction.TransactionManager$Transaction.handleAction(TransactionManager.java:214)
at com.qiniu.android.transaction.TransactionManager$Transaction.access$000
at com.qiniu.android.transaction.TransactionManager.handleTransaction
at com.qiniu.android.transaction.TransactionManager.handleAllTransaction(TransactionManager.java:92)
at com.qiniu.android.transaction.TransactionManager.timerAction(TransactionManager.java:124)
at com.qiniu.android.transaction.TransactionManager.access$100
at com.qiniu.android.transaction.TransactionManager$1.run
at java.util.TimerThread.mainLoop(Timer.java:562)
at java.util.TimerThread.run(Timer.java:512)

[YangSen-qn]

@yx1025
看起来是手机内存使用问题，可能和手机内存大小有关，也可能和其他 APP 有关，只不过七牛 SDK 在申请内存时正好触发了 OOM。

七牛 SDK 使用时的注意点：

1. 上传时尽可能控制并发上传得文件数量（比如：3个），这是 APP 需要实现的逻辑
2. 上传分片配置不要太大，我们推荐使用默认值
3. 上传分片阈值不要太大，我们推荐使用默认值