jackjlli commented on a change in pull request #7662:
URL: https://github.com/apache/pinot/pull/7662#discussion_r739452178
##########
File path:
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/PinotHelixResourceManager.java
##########
@@ -2907,6 +2907,88 @@ public void endReplaceSegments(String tableNameWithType,
String segmentLineageEn
tableNameWithType, segmentLineageEntryId);
}
+ /**
+ * Revert the segment replacement
+ *
+ * 1. Compute validation
+ * 2. Update the lineage entry state to "REVERTED" and write metadata to the
property store
+ *
+ * Update is done with retry logic along with read-modify-write block for
achieving atomic update of the lineage
+ * metadata.
+ *
+ * @param tableNameWithType
+ * @param segmentLineageEntryId
+ */
+ public void revertReplaceSegments(String tableNameWithType, String
segmentLineageEntryId) {
+ try {
+ DEFAULT_RETRY_POLICY.attempt(() -> {
+ // Fetch the segment lineage metadata
+ ZNRecord segmentLineageZNRecord =
+
SegmentLineageAccessHelper.getSegmentLineageZNRecord(_propertyStore,
tableNameWithType);
+ SegmentLineage segmentLineage;
+ int expectedVersion = -1;
+ Preconditions.checkArgument(segmentLineageZNRecord != null, String
+ .format("Segment lineage does not exist. (tableNameWithType =
'%s', segmentLineageEntryId = '%s')",
+ tableNameWithType, segmentLineageEntryId));
+ segmentLineage = SegmentLineage.fromZNRecord(segmentLineageZNRecord);
+ expectedVersion = segmentLineageZNRecord.getVersion();
+
+ // Look up the lineage entry based on the segment lineage entry id
+ LineageEntry lineageEntry =
segmentLineage.getLineageEntry(segmentLineageEntryId);
+ Preconditions.checkArgument(lineageEntry != null, String
+ .format("Invalid segment lineage entry id (tableName='%s',
segmentLineageEntryId='%s')", tableNameWithType,
+ segmentLineageEntryId));
+
+ // Revert is not allowed if the state is not 'COMPLETED'
+ if (lineageEntry.getState() != LineageEntryState.COMPLETED) {
Review comment:
What if the lineage entry is currently in `IN_PROGRESS` state, let's say
a batch of segment upload is interrupted? Are we still able to mark it to
`REVERTED`?
##########
File path:
pinot-controller/src/main/java/org/apache/pinot/controller/api/resources/PinotSegmentUploadDownloadRestletResource.java
##########
@@ -580,6 +580,29 @@ public Response endReplaceSegments(
}
}
+ @POST
+ @Path("segments/{tableName}/revertReplaceSegments")
+ @Authenticate(AccessType.UPDATE)
+ @Produces(MediaType.APPLICATION_JSON)
+ @ApiOperation(value = "Revert segments replacement", notes = "Revert
segments replacement")
+ public Response revertReplaceSegments(
+ @ApiParam(value = "Name of the table", required = true)
@PathParam("tableName") String tableName,
+ @ApiParam(value = "OFFLINE|REALTIME") @QueryParam("type") String
tableTypeStr,
+ @ApiParam(value = "Segment lineage entry id to revert")
Review comment:
Add `required = true` to the ApiParam
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
