sv2000 commented on a change in pull request #2701: GOBBLIN-846: Enhance
LogCopier service to handle continuous YARN log …
URL: https://github.com/apache/incubator-gobblin/pull/2701#discussion_r312230939
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File path:
gobblin-utility/src/main/java/org/apache/gobblin/util/logs/LogCopier.java
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@@ -536,14 +521,15 @@ private void copyChangesOfLogFile(Path srcFile, Path
destFile) throws IOExceptio
try (Closer closer = Closer.create()) {
fsDataInputStream =
closer.register(LogCopier.this.srcFs.open(srcFile));
- // Seek to the the most recent position if it is available
- LOGGER.debug(String.format("Reading log file %s from position %d",
srcFile, this.currentPos));
- fsDataInputStream.seek(this.currentPos);
BufferedReader srcLogFileReader = closer.register(
new BufferedReader(new InputStreamReader(fsDataInputStream,
ConfigurationKeys.DEFAULT_CHARSET_ENCODING)));
- FSDataOutputStream outputStream =
LogCopier.this.destFs.exists(destFile)
- ? LogCopier.this.destFs.append(destFile) :
LogCopier.this.destFs.create(destFile);
+ //If file already exists, delete and re-copy the file.
+ if (LogCopier.this.destFs.exists(destFile)) {
Review comment:
Agreed. This is un-necessary. This condition will never be satisfied since
we filter out files which have already been copied.
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