use of com.tencent.angel.ps.ha.RecoverPartKey in project angel by Tencent.
the class MasterService method psReport.
/**
* response for parameter server heartbeat
*
* @param controller rpc controller of protobuf
* @param request heartbeat request
*/
@SuppressWarnings("unchecked")
@Override
public PSReportResponse psReport(RpcController controller, PSReportRequest request) throws ServiceException {
if (LOG.isDebugEnabled()) {
LOG.debug("receive ps heartbeat request. request=" + request);
}
// parse parameter server counters
List<Pair> params = request.getMetricsList();
int size = params.size();
Map<String, String> paramsMap = new HashMap<String, String>();
for (int i = 0; i < size; i++) {
paramsMap.put(params.get(i).getKey(), params.get(i).getValue());
}
PSAttemptId psAttemptId = ProtobufUtil.convertToId(request.getPsAttemptId());
PSReportResponse.Builder resBuilder = PSReportResponse.newBuilder();
if (!context.getParameterServerManager().isAlive(psAttemptId)) {
// if psAttemptId is not in monitor set, just return a PSCOMMAND_SHUTDOWN command.
LOG.error("ps attempt " + psAttemptId + " is not in running ps attempt set");
resBuilder.setPsCommand(PSCommandProto.PSCOMMAND_SHUTDOWN);
} else {
resBuilder.setPsCommand(PSCommandProto.PSCOMMAND_OK);
// refresh last heartbeat timestamp
context.getParameterServerManager().alive(psAttemptId);
// send a state update event to the specific PSAttempt
context.getEventHandler().handle(new PSAttemptStateUpdateEvent(psAttemptId, paramsMap));
// Check is there save request
PSMatricesSaveContext subSaveContext = context.getModelSaver().getSaveContext(psAttemptId.getPsId());
PSMatricesSaveResult subSaveResult = context.getModelSaver().getSaveResult(psAttemptId.getPsId());
if (subSaveContext != null && subSaveResult != null && (subSaveContext.getRequestId() == subSaveResult.getRequestId()) && (subSaveResult.getState() == SaveState.INIT || subSaveResult.getState() == SaveState.SAVING)) {
// LOG.info("PS " + psAttemptId + " need save " + subSaveContext);
resBuilder.setNeedSaveMatrices(ProtobufUtil.convert(subSaveContext));
}
// Check is there load request
PSMatricesLoadContext subLoadContext = context.getModelLoader().getLoadContext(psAttemptId.getPsId());
PSMatricesLoadResult subLoadResult = context.getModelLoader().getLoadResult(psAttemptId.getPsId());
if (subLoadContext != null && subLoadResult != null && subLoadContext.getRequestId() == subLoadResult.getRequestId() && (subLoadResult.getState() == LoadState.INIT || subLoadResult.getState() == LoadState.LOADING)) {
// LOG.info("PS " + psAttemptId + " need load " + subLoadContext);
resBuilder.setNeedLoadMatrices(ProtobufUtil.convert(subLoadContext));
}
// check matrix metadata inconsistencies between master and parameter server.
// if a matrix exists on the Master and does not exist on ps, then it is necessary to notify ps to establish the matrix
// if a matrix exists on the ps and does not exist on master, then it is necessary to notify ps to remove the matrix
List<MatrixReportProto> matrixReportsProto = request.getMatrixReportsList();
List<Integer> needReleaseMatrices = new ArrayList<>();
List<MatrixMeta> needCreateMatrices = new ArrayList<>();
List<RecoverPartKey> needRecoverParts = new ArrayList<>();
List<MatrixReport> matrixReports = ProtobufUtil.convertToMatrixReports(matrixReportsProto);
context.getMatrixMetaManager().syncMatrixInfos(matrixReports, needCreateMatrices, needReleaseMatrices, needRecoverParts, psAttemptId.getPsId());
size = needCreateMatrices.size();
for (int i = 0; i < size; i++) {
resBuilder.addNeedCreateMatrices(ProtobufUtil.convertToMatrixMetaProto(needCreateMatrices.get(i)));
}
size = needReleaseMatrices.size();
for (int i = 0; i < size; i++) {
resBuilder.addNeedReleaseMatrixIds(needReleaseMatrices.get(i));
}
size = needRecoverParts.size();
for (int i = 0; i < size; i++) {
resBuilder.addNeedRecoverParts(ProtobufUtil.convert(needRecoverParts.get(i)));
}
}
return resBuilder.build();
}
use of com.tencent.angel.ps.ha.RecoverPartKey in project angel by Tencent.
the class AMMatrixMetaManager method syncMatrixInfos.
/**
* compare the matrix meta on the master and the matrix meta on ps to find the matrix this
* parameter server needs to create and delete
*
* @param matrixReports parameter server matrix report, include the matrix ids this parameter
* server hold.
* @param needCreateMatrixes use to return the matrix partitions this parameter server need to
* build
* @param needReleaseMatrixes use to return the matrix ids this parameter server need to remove
* @param needRecoverParts need recover partitions
* @param psId parameter server id
*/
public void syncMatrixInfos(List<MatrixReport> matrixReports, List<MatrixMeta> needCreateMatrixes, List<Integer> needReleaseMatrixes, List<RecoverPartKey> needRecoverParts, ParameterServerId psId) {
// get matrix ids in the parameter server report
IntOpenHashSet matrixInPS = new IntOpenHashSet();
int size = matrixReports.size();
for (int i = 0; i < size; i++) {
matrixInPS.add(matrixReports.get(i).matrixId);
}
handleMatrixReports(psId, matrixReports);
Set<RecoverPartKey> parts = getAndRemoveNeedRecoverParts(psId);
if (parts != null) {
needRecoverParts.addAll(parts);
}
// get the matrices parameter server need to create and delete
getPSNeedUpdateMatrix(matrixInPS, needCreateMatrixes, needReleaseMatrixes, psId);
psMatricesUpdate(psId, matrixReports);
}
use of com.tencent.angel.ps.ha.RecoverPartKey in project angel by Tencent.
the class AMMatrixMetaManager method handlePartReport.
private void handlePartReport(ParameterServerId psId, int matrixId, PartReport partReport) {
ParameterServerId master = matrixMetaManager.getMasterPs(matrixId, partReport.partId);
if (!psId.equals(master)) {
MatrixMeta matrixMeta = matrixMetaManager.getMatrixMeta(matrixId);
if (matrixMeta == null) {
return;
}
matrixMeta.getPartitionMeta(partReport.partId).addReplicationPS(psId);
if (partReport.state == PartitionState.INITIALIZING) {
addNeedRecoverPart(master, new RecoverPartKey(new PartitionKey(matrixId, partReport.partId), new PSLocation(psId, context.getLocationManager().getPsLocation(psId))));
} else if (partReport.state == PartitionState.READ_AND_WRITE) {
ParameterServerId orignalMaster = matrixPartitionsOnPS.get(psId).get(matrixId).getPartitionMeta(partReport.partId).getMasterPs();
if (orignalMaster.equals(psId)) {
matrixMetaManager.getMatrixMeta(matrixId).getPartitionMeta(partReport.partId).makePsToMaster(psId);
}
}
}
}
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