thrift

Callbacks in Thrift Asynchronous Functions?

由 落爺英雄遲暮 提交于 2019-11-27 02:36:05
问题 In Thrift it is possible to use the oneway modifier to specify a call as asynchronous . Apparently, it's not possible to define a callback , though, to be executed when the execution of the function is completed. It seems that the only possibility I have is to give my Thrift client ( PHP ) some "server" capabilities, so that, when the heavy computation is completed on the server side, I can send a notification to it. This means that I should have a new .thrift file, with new definitions, new

Why I am getting java.lang.AbstractMethodError errors?

由 十年热恋 提交于 2019-11-27 01:41:59
What are the possible causes for ABstractMethodError? Exception in thread "pool-1-thread-1" java.lang.AbstractMethodError: org.apache.thrift.ProcessFunction.isOneway()Z at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:51) at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) at com.gemfire.gemstone.thrift.hbase.ThreadPoolServer$ClientConnnection.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread

Advantages of using cql over thrift

由 懵懂的女人 提交于 2019-11-27 00:47:22
问题 Are there any distinct advantages for using cql over thrift or is it simply a case of developers being too used to SQL? I'm wanting to switch from thrift querying to cql, the only problem is I'm not sure about the downsides of doing so. What are they? 回答1: Querying In CQL you can query cassandra and get data in a couple of lines (using JDBC driver): String query = "SELECT * FROM message;"; PreparedStatement statement = con.prepareStatement(query); While in thrift based API's it's a bit more

[Cassandra][Thrift] [Python] Cassandra stress test tool

由 房东的猫 提交于 2019-11-26 18:23:57
在Cassandra安裝 python 的 stress test tool 真的是有夠麻煩，把步驟寫起來免得忘記。 1. 安裝boost C 函式庫 2. 安裝Thrift 3. 產生python語言連接Cassandra 的 Interface sudo thrift --gen py /usr/local/dse- 2.1 /interface/cassandra.thrift 會出現 gen-py的 folder如下: [vl77@STIMCAS01 interface]$ ls cassandra.thrift common.thrift dse.thrift gen - py hdfs.thrift jobtracker.thrift [vl77@STIMCAS01 interface]$ ll total 76 -rw-r--r-- 1 cassandra cassandra 28213 Jun 14 2012 cassandra.thrift -rw-r--r-- 1 cassandra cassandra 3346 Jun 14 2012 common.thrift -rw-r--r-- 1 cassandra cassandra 4510 Jun 14 2012 dse.thrift drwxr -xr-x 3 root root 4096 Jan 8 11 :

dotnetcore 与 hbase 之二——thrift 客户端的制作

由 孤者浪人 提交于 2019-11-26 16:28:39
说明 在上一篇文章 dotnetcore 与 hbase 之一——hbase 环境准备 结束后，我们已经有了 hbase 数据库环境。接下来就可以利用 thrift 生成 c# hbase 客户端了。如果不了解 thrift，请戳 这里 。 dotnet core 实现的 thrift thrift 从 0.11.0 版本才有 netcore 的实现加入。在此之前有 .net farmwork 的实现版本。为了使用带有 dotnet core 版本我们选择最老的版本 0.11.0 进行安装。但是这有个问题， hbase 里的 thrift 版本是 0.9.0，版本不一致会导致某些传输协议不能使用，目前测试只有简单二进制协议 TBinaryProtocol 能用！！！ 1. thrift 安装 thrift-0.11.0 可以从 这里 下载。 ubuntu18.04 安装 thrift 请转到 这里 或者自行百度。 2. thrift hbase 生成 在 hbase1.2.8 解压文件夹中查找 Hbase.thrift ，Linux 下可以使用命令 find ./ -name Hbase.thrift 进行查找。 hbase-1.2.8|⇒ find ./ -name Hbase.thrift ./hbase-thrift/src/main/resources/org/apache

What is RPC framework and Apache Thrift?

由 冷暖自知 提交于 2019-11-26 14:06:27
I need to learn Apache Thrift for a University project. As this tutorial says, it is an RPC framework, and it was the only document I could find for Thrift other than their documentation . Can someone tell me what is a RPC framework and how does this relate to Apache Thrift? An RPC framework in general is a set of tools that enable the programmer to call a piece of code in a remote process, be it on a different machine or just another process on the same machine. In the particular case of Apache Thrift , we talk about a framework designed to be efficient, and available across both OS platforms

Why I am getting java.lang.AbstractMethodError errors?

由 两盒软妹~` 提交于 2019-11-26 12:28:11
问题 What are the possible causes for ABstractMethodError? Exception in thread \"pool-1-thread-1\" java.lang.AbstractMethodError: org.apache.thrift.ProcessFunction.isOneway()Z at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:51) at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39) at com.gemfire.gemstone.thrift.hbase.ThreadPoolServer$ClientConnnection.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java

Biggest differences of Thrift vs Protocol Buffers?

由 倾然丶 夕夏残阳落幕 提交于 2019-11-26 11:44:01
问题 What are the biggest pros and cons of Apache Thrift vs Google\'s Protocol Buffers? 回答1: They both offer many of the same features; however, there are some differences: Thrift supports 'exceptions' Protocol Buffers have much better documentation/examples Thrift has a builtin Set type Protocol Buffers allow "extensions" - you can extend an external proto to add extra fields, while still allowing external code to operate on the values. There is no way to do this in Thrift I find Protocol Buffers

What is RPC framework and Apache Thrift?

由 ￣綄美尐妖づ 提交于 2019-11-26 03:48:18
问题 I need to learn Apache Thrift for a University project. As this tutorial says, it is an RPC framework, and it was the only document I could find for Thrift other than their documentation. Can someone tell me what is a RPC framework and how does this relate to Apache Thrift? 回答1: An RPC framework in general is a set of tools that enable the programmer to call a piece of code in a remote process, be it on a different machine or just another process on the same machine. In the particular case of
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