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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2020/01/09 00:13:43 UTC
[GitHub] [hadoop-ozone] avijayanhwx commented on a change in pull request #372: HDDS-2579. Ozone client should refresh pipeline info if reads from al…
avijayanhwx commented on a change in pull request #372: HDDS-2579. Ozone client should refresh pipeline info if reads from al…
URL: https://github.com/apache/hadoop-ozone/pull/372#discussion_r364506410
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File path: hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/rpc/RpcClient.java
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@@ -1031,7 +1032,33 @@ public OzoneInputStream readFile(String volumeName, String bucketName,
.setSortDatanodesInPipeline(topologyAwareReadEnabled)
.build();
OmKeyInfo keyInfo = ozoneManagerClient.lookupFile(keyArgs);
- return createInputStream(keyInfo);
+ return getInputStreamWithRetryFunction(keyInfo);
+ }
+
+ /**
+ * Create InputStream with Retry function to refresh pipeline information
+ * if reads fail.
+ * @param keyInfo
+ * @return
+ * @throws IOException
+ */
+ private OzoneInputStream getInputStreamWithRetryFunction(
+ OmKeyInfo keyInfo) throws IOException {
+ return createInputStream(keyInfo, omKeyInfo -> {
+ try {
+ OmKeyArgs omKeyArgs = new OmKeyArgs.Builder()
+ .setVolumeName(omKeyInfo.getVolumeName())
+ .setBucketName(omKeyInfo.getBucketName())
+ .setKeyName(omKeyInfo.getKeyName())
+ .setRefreshPipeline(true)
+ .setSortDatanodesInPipeline(topologyAwareReadEnabled)
+ .build();
+ return ozoneManagerClient.lookupKey(omKeyArgs);
+ } catch (IOException e) {
+ LOG.error("Unable to get key!");
Review comment:
Sure, will do. Thanks for the review @hanishakoneru
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