WebSource File: CopyOnWriteStateMap.java From flink with Apache License 2.0 5 votes /** * Constructs a new {@code StateMap} instance with the specified capacity. * * @param capacity the initial capacity of this hash map. * @param stateSerializer the serializer of the key. * @throws IllegalArgumentException when the capacity is less than zero. Web(The only change in the above text is the OPERATOR_NAME text where I removed some of the internal specifics of our system). This will reliably happen on a fresh cluster after …

Handling state in Flink - Cloudera

WebOne entry in the CopyOnWriteStateMap.This is a triplet of key, namespace, and state. Thereby, key and namespace together serve as a composite key for the state. This class also contains some management meta data for copy-on-write, a pointer to link other CopyOnWriteStateMap.StateMapEntrys to a list, and cached hash code. WebThe following examples show how to use java.util.Iterator.You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. green top heparin tube serum or plasma

org.apache.flink.runtime.state.heap.HeapPriorityQueueSetFactory

WebCopyOnWriteStateMap 是一个类似于 HashMap 的结构，但支持了两个非常有意思的功能： hash 结构为了保证读写数据的高性能，都需要有扩容策略，CopyOnWriteStateMap 的扩容策略是一个渐进式 rehash 的策略，即：不是一下子将数据全迁移的新的 hash 表，而是慢慢去迁移数据到 ... Web学习Flink的ProcessFunction过程中，官方文档中涉及状态处理的时候，不止一次提到只适用于keyed stream的元素，如下图红框所示： 之前写过一些flink应用，keyed stream常用但不是必须用的，所以产生了疑问： 为何只有keyed stream的元素能读写状态？ http://studyofnet.com/973368551.html fnf beatmaps