业务需求批量上传图片，图片大概一张4M左右，上传10张以下没问题，但是上传10张以上就会出现失败的情况；
错误1：
I/qiniu----failed﹕ {ResponseInfo:com.qiniu.android.http.ResponseInfo@42ce1ba8,status:-1, reqId:null, xlog:null,error:UnknownHostException exception: Unable to resolve host "upload.qiniu.com": No address associated with hostname}

错误2：
Passed contentType will be ignored because HttpEntity sets content type

org.apache.http.conn.ConnectionPoolTimeoutException: Timeout waiting for connection
05-27 11:26:08.936 7268-7683/com.baijimu.engineering W/System.err﹕ at org.apache.http.impl.conn.tsccm.ConnPoolByRoute.getEntryBlocking(ConnPoolByRoute.java:353)
05-27 11:26:08.946 7268-7683/com.baijimu.engineering W/System.err﹕ at org.apache.http.impl.conn.tsccm.ConnPoolByRoute$1.getPoolEntry(ConnPoolByRoute.java:238)

请问这是什么情况？