Web5. Spooling Directory Source. Apache Flume Spooling Directory receives data into a “spooling” directory on disk. It keeps monitoring the directory for new data and process it. Apache Flume Spooling Directory is a reliable source from which data does not miss even if the Flume is restarted or its process is killed. WebJan 14, 2014 · Apache Flume User Guide says spooling directory source may duplicate events under certain circumstances. Here is the line from docs: "Despite the reliability guarantees of this source, there are still cases in which events may be duplicated if certain downstream failures occur." What are those cases?
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WebFeb 16, 2015 · To fix the immediate problem restart your flume agent. Then use a method of copying your file that is atomic. The spooling directory source requires that the file not change once it has started reading it. If the file changes then it will log an error message and start producing errors like the one you show above. cp is not atomic. WebDec 3, 2014 · You should bear in mind that flume is designed to sort and buffer incoming records, not files, i.e. using flume as a basic copying mechanism to HDFS can be achieved much easily by using a shell script which basically periodically checks your spool directory and does a hadoop fs -copyFromLocal [local file] [hdfs path] – black stitched shirts
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WebAug 24, 2024 · How can it done? I used spool directory source. I used a channel selector. It should multiply the flow by the file name in event header. I have lot of files named as CA,AZ,CA2,AZ2,....so on.CA files shuold write to the /flume_sink/CA directory, AZ files shuold write to the /flume_sink/AZ and KT is the default directory.Following code is used. WebHadoop Developer with 8 years of overall IT experience in a variety of industries, which includes hands on experience in Big Data technologies.Nearly 4 years of comprehensive … WebApr 19, 2024 · Flume - spoolign dir source - ingesting sub directories Ask Question Asked 4 years, 11 months ago Modified 4 years, 11 months ago Viewed 130 times 0 I am … black stitchlite