mcvsubbu commented on a change in pull request #3877: Pinot controller side
change to enhance LLC segment metadata upload.
URL: https://github.com/apache/incubator-pinot/pull/3877#discussion_r263461935
##########
File path:
pinot-controller/src/main/java/org/apache/pinot/controller/api/resources/LLCSegmentCompletionHandlers.java
##########
@@ -276,10 +307,193 @@ public String
segmentUpload(@QueryParam(SegmentCompletionProtocol.PARAM_INSTANCE
return response;
}
+ @POST
+ @Path(SegmentCompletionProtocol.MSG_TYPE_COMMIT_END_METADATA)
+ @Produces(MediaType.APPLICATION_JSON)
+ @Consumes(MediaType.MULTIPART_FORM_DATA)
+ public String
segmentCommitEndWithMetadata(@QueryParam(SegmentCompletionProtocol.PARAM_INSTANCE_ID)
String instanceId,
+
@QueryParam(SegmentCompletionProtocol.PARAM_SEGMENT_NAME) String segmentName,
+
@QueryParam(SegmentCompletionProtocol.PARAM_SEGMENT_LOCATION) String
segmentLocation,
+
@QueryParam(SegmentCompletionProtocol.PARAM_OFFSET) long offset,
+
@QueryParam(SegmentCompletionProtocol.PARAM_MEMORY_USED_BYTES) long
memoryUsedBytes,
+
@QueryParam(SegmentCompletionProtocol.PARAM_BUILD_TIME_MILLIS) long
buildTimeMillis,
+
@QueryParam(SegmentCompletionProtocol.PARAM_WAIT_TIME_MILLIS) long
waitTimeMillis,
+
@QueryParam(SegmentCompletionProtocol.PARAM_ROW_COUNT) int numRows,
+
@QueryParam(SegmentCompletionProtocol.PARAM_SEGMENT_SIZE_BYTES) long
segmentSizeBytes,
+ FormDataMultiPart metadataFiles) {
+ if (instanceId == null || segmentName == null || offset == -1 ||
segmentLocation == null || metadataFiles == null) {
+ LOGGER.error("Invalid call: offset={}, segmentName={}, instanceId={},
segmentLocation={}", offset, segmentName,
+ instanceId, segmentLocation);
+ // TODO: memoryUsedInBytes = 0 if not present in params. Add validation
when we start using it
+ return SegmentCompletionProtocol.RESP_FAILED.toJsonString();
+ }
+
+ SegmentCompletionProtocol.Request.Params requestParams = new
SegmentCompletionProtocol.Request.Params();
+
requestParams.withInstanceId(instanceId).withSegmentName(segmentName).withOffset(offset)
+
.withSegmentLocation(segmentLocation).withSegmentSizeBytes(segmentSizeBytes)
+
.withBuildTimeMillis(buildTimeMillis).withWaitTimeMillis(waitTimeMillis).withNumRows(numRows)
+ .withMemoryUsedBytes(memoryUsedBytes);
+ LOGGER.info("Processing segmentCommitEnd:{}", requestParams.toString());
+
+
+ final boolean isSuccess = true;
+ final boolean isSplitCommit = true;
+ SegmentMetadataImpl segmentMetadata =
extractMetadataFromInput(metadataFiles, segmentName);
+ // If it fails to extract metadata from the input form, try to download
the segment and extract it from the segment.
+ if (segmentMetadata == null) {
+ LOGGER.info("Failed to extract segment metadata for {} from input form,
fallback to use the segment file.",
+ segmentName);
+ try {
+ segmentMetadata = extractMetadataFromSegmentFile(segmentName, new
URI(segmentLocation));
+ } catch (URISyntaxException e) {
+ LOGGER.error("Invalid segment location: ", segmentLocation);
+ return SegmentCompletionProtocol.RESP_FAILED.toJsonString();
+ }
+ }
+ // Return failure to server if both extraction efforts fail.
+ if (segmentMetadata == null) {
+ LOGGER.warn("Segment metadata extraction failure for segment {}",
segmentName);
+ return SegmentCompletionProtocol.RESP_FAILED.toJsonString();
+ }
+ SegmentCompletionProtocol.Response response =
+
SegmentCompletionManager.getInstance().segmentCommitEnd(requestParams,
isSuccess, isSplitCommit,
+
CommittingSegmentDescriptor.fromSegmentCompletionReqParamsAndMetadata(requestParams,
segmentMetadata));
+ final String responseStr = response.toJsonString();
+ LOGGER.info("Response to segmentCommitEnd:{}", responseStr);
+ return responseStr;
+ }
+
+ /**
+ * Extract and return the segment metadata from the two input form data
files (metadata file and creation meta).
+ * Return null if any of the two files is missing or there is exception
during parsing and extraction.
+ *
+ */
+ private SegmentMetadataImpl extractMetadataFromInput(FormDataMultiPart
metadataFiles, String segmentNameStr) {
+ String tempMetadataDirStr = StringUtil.join("/",
_controllerConf.getLocalTempDir(), segmentNameStr + METADATA_TEMP_DIR_SUFFIX);
+ File tempMetadataDir = new File(tempMetadataDirStr);
+
+ try {
+ Preconditions.checkState(tempMetadataDir.mkdirs(), "Failed to create
directory: %s", tempMetadataDirStr);
+ // Extract metadata.properties from the metadataFiles.
+ if (!extractMetadataFromInputField(metadataFiles, tempMetadataDirStr,
V1Constants.MetadataKeys.METADATA_FILE_NAME)) {
+ return null;
+ }
+ // Extract creation.meta from the metadataFiles.
+ if (!extractMetadataFromInputField(metadataFiles, tempMetadataDirStr,
V1Constants.SEGMENT_CREATION_META)) {
+ return null;
+ }
+ // Load segment metadata
+ return new SegmentMetadataImpl(tempMetadataDir);
+ } catch (Exception e) {
+ LOGGER.error("Exception extracting and reading segment metadata for " +
segmentNameStr, e);
Review comment:
Please use {} for logging segmentNamemStr
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