ajantha-bhat commented on a change in pull request #3435: [CARBONDATA-3571] Add
table status file read retry for query
URL: https://github.com/apache/carbondata/pull/3435#discussion_r346735732
##########
File path:
core/src/main/java/org/apache/carbondata/core/statusmanager/SegmentStatusManager.java
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@@ -254,33 +261,51 @@ public ValidAndInvalidSegmentsInfo
getValidAndInvalidSegments(Boolean isChildTab
DataInputStream dataInputStream = null;
BufferedReader buffReader = null;
InputStreamReader inStream = null;
- LoadMetadataDetails[] listOfLoadFolderDetailsArray;
+ LoadMetadataDetails[] loadFolderDetails = null;
AtomicFileOperations fileOperation =
AtomicFileOperationFactory.getAtomicFileOperations(tableStatusPath);
- try {
- if (!FileFactory.isFileExist(tableStatusPath,
FileFactory.getFileType(tableStatusPath))) {
- return new LoadMetadataDetails[0];
+ // When storing table status file in object store, reading of table status
file may
+ // fail (receive EOFException) when table status file is being modifying
+ // so here we retry multiple times before throwing EOFException
+ int retry = READ_TABLE_STATUS_RETRY_COUNT;
+ while (retry > 0) {
+ try {
+ if (!FileFactory.isFileExist(tableStatusPath,
FileFactory.getFileType(tableStatusPath))) {
Review comment:
can we move it outside retry ?
Because we already checked for file exist. Only read has failed. so just
retry read should be ok. Check file exist again in S3 may take some time.
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