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Index配置 https://www.elastic.co/guide/en/elasticsearch/reference/7.15/index-modules.html#index-modules-settings static static的配置只能在 closed index 时才能修改。 阅读全文
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https://www.elastic.co/guide/en/elasticsearch/reference/7.15/modules-node.html 默认情况下,集群中的每个节点都可以处理HTTP和Transport。Transport专门用于节点之间的通信;REST客户端使用HTTP层。 阅读全文
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LinkedCaseInsensitiveMap LinkedCaseInsensitiveMap<V> implements Map<String, V>, Serializable, Cloneable key忽略大小写的LinkedMap,不支持null作为key private final 阅读全文
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FileSystemUtils #public static boolean deleteRecursively(@Nullable File root) 递归删除,不会抛出异常 #public static boolean deleteRecursively(@Nullable Path root 阅读全文
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FileCopyUtils public static final int BUFFER_SIZE = 4096; #public static int copy(File in, File out) throws IOException #public static void copy(byte[ 阅读全文