arvindshmicrosoft commented on a change in pull request #1555: Fix idempotency
bug in importtable
URL: https://github.com/apache/accumulo/pull/1555#discussion_r390054590
##########
File path:
server/master/src/main/java/org/apache/accumulo/master/tableOps/MoveExportedFiles.java
##########
@@ -48,17 +49,22 @@
Map<String,String> fileNameMappings =
PopulateMetadataTable.readMappingFile(fs, tableInfo);
+ FileStatus[] exportedFiles = fs.listStatus(new
Path(tableInfo.exportDir));
+ FileStatus[] importedFiles = fs.listStatus(new
Path(tableInfo.importDir));
+
for (String oldFileName : fileNameMappings.keySet()) {
- if (!fs.exists(new Path(tableInfo.exportDir, oldFileName))) {
- throw new AcceptableThriftTableOperationException(tableInfo.tableId,
tableInfo.tableName,
- TableOperation.IMPORT, TableOperationExceptionType.OTHER,
- "File referenced by exported table does not exists " +
oldFileName);
+ if (Arrays.stream(exportedFiles).filter(fstat ->
+ fstat.getPath().getName().equals(oldFileName)).count() != 1) {
+ if (Arrays.stream(importedFiles).filter(fstat ->
+
fstat.getPath().getName().equals(fileNameMappings.get(oldFileName))).count() !=
1) {
+ throw new
AcceptableThriftTableOperationException(tableInfo.tableId, tableInfo.tableName,
+ TableOperation.IMPORT, TableOperationExceptionType.OTHER,
+ "File referenced by exported table does not exist " +
oldFileName);
+ }
Review comment:
Thank you Christopher! I did implement this and have it as a viable option -
but I would like to evaluate Keith's suggestion as well before finalizing.
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