hunshenshi created FLUME-3101:
---------------------------------
Summary: taildir source may endless loop when tail a file
Key: FLUME-3101
URL: https://issues.apache.org/jira/browse/FLUME-3101
Project: Flume
Issue Type: Bug
Components: Sinks+Sources
Affects Versions: 1.7.0
Reporter: hunshenshi
If there are many files in the path that need to be tail, and there is a file
written by *high frequency* (for example, there are file a, file b and file c
in the path, file a is written at high frequency), *taildir can read the
batchSize size event from file a everytime*, then taildir will only read data
from file a, other files will not to be read, because in
TaildirSource.tailFileProcess will into an endless loop.
code:
{code:title=Bar.java|borderStyle=solid}
private void tailFileProcess(TailFile tf, boolean backoffWithoutNL)
throws IOException, InterruptedException {
while (true) {
// if events.size >= batchSize will not break while,
// then into endless loop to only read tf
if (events.size() < batchSize) {
break;
}
}
}
{code}
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