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我在我的项目中使用 Hibernate + google-Cloud-SQL

它工作正常，但它会慢一些时间，当我们拨打更多电话时，它会给我以下异常：-

com.google.apphosting.api.ApiProxy$CancelledException: The API call datastore_v3.Put() was explicitly cancelled.
    at com.google.apphosting.runtime.ApiProxyImpl$5.get(ApiProxyImpl.java:385)
    at com.google.apphosting.runtime.ApiProxyImpl$5.get(ApiProxyImpl.java:382)
    at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:90)
    at com.google.appengine.api.datastore.FutureHelper$CumulativeAggregateFuture.get(FutureHelper.java:145)
    at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:90)
    at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:90)
    at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:90)
    at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:90)
    at com.google.appengine.api.datastore.FutureHelper.getInternal(FutureHelper.java:72)
    at com.google.appengine.api.datastore.FutureHelper.quietGet(FutureHelper.java:33)
    at com.google.appengine.api.datastore.DatastoreServiceImpl$2.runInternal(DatastoreServiceImpl.java:113)
    at com.google.appengine.api.datastore.DatastoreServiceImpl$2.runInternal(DatastoreServiceImpl.java:110)
    at com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java:31)
    at com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServiceImpl.java:110)
    at com.google.appengine.api.datastore.DatastoreServiceImpl.put(DatastoreServiceImpl.java:94)
    at com.google.apphosting.runtime.jetty.DatastoreSessionStore.saveSession(DatastoreSessionStore.java:94)
    at com.google.apphosting.runtime.jetty.SessionManager$AppEngineSession.save(SessionManager.java:156)
    at com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:41)
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
    at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:57)
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1 回答 1

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发生这种情况是因为您已达到 servlet 请求或任务的时间限制，并且您仍然无法使用持久性（数据存储、内存缓存、云 sql、存储）等 Google 服务。

于 2014-03-11T10:50:32.120 回答