goiri commented on a change in pull request #1010: [HDFS-13694]Making md5
computing being in parallel with image loading
URL: https://github.com/apache/hadoop/pull/1010#discussion_r297274689
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormatProtobuf.java
##########
@@ -172,13 +172,55 @@ public LoaderContext getLoaderContext() {
return ctx;
}
+ private class DigestThread extends Thread {
+ volatile private IOException ioe = null;
+ volatile private MD5Hash digest = null;
+ private File file;
+
+ public DigestThread(File inFile) {
+ file = inFile;
+ }
+
+ public MD5Hash getDigest() {
+ return digest;
+ }
+
+ public IOException getException() {
+ return ioe;
+ }
+
+ @Override
+ public void run() {
+ try {
+ digest = MD5FileUtils.computeMd5ForFile(file);
+ } catch (Throwable t) {
Review comment:
} catch (IOException ioe) {
throw ioe;
} catch (Throwable t) {
throw new IOException(t);
}
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