Package cloudtrace.instrument

Examples of cloudtrace.instrument.Span.stop()

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          reservationsBlocked = false;
          Tablet.this.notifyAll();
        }
       
      }
      waitForScans.stop();
      return inUse;
    }
   
    public void importMapFiles(Map<String,DataFileValue> paths) throws IOException {
     
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        Span candidatesSpan = Trace.start("getCandidates");
        status.current.started = System.currentTimeMillis();
        SortedSet<String> candidates = getCandidates();
        status.current.candidates = candidates.size();
        candidatesSpan.stop();
       
        // STEP 2: confirm deletes
        // WARNING: This line is EXTREMELY IMPORTANT.
        // You MUST confirm candidates are okay to delete
        Span confirmDeletesSpan = Trace.start("confirmDeletes");
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        // WARNING: This line is EXTREMELY IMPORTANT.
        // You MUST confirm candidates are okay to delete
        Span confirmDeletesSpan = Trace.start("confirmDeletes");
        confirmDeletes(candidates);
        status.current.inUse = status.current.candidates - candidates.size();
        confirmDeletesSpan.stop();
       
        // STEP 3: delete files
        if (safemode) {
          if (verbose)
            System.out.println("SAFEMODE: There are " + candidates.size() + " data file candidates marked for deletion.\n"
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          deleteFiles(candidates);
          log.info("Number of data file candidates for deletion: " + status.current.candidates);
          log.info("Number of data file candidates still in use: " + status.current.inUse);
          log.info("Number of successfully deleted data files: " + status.current.deleted);
          log.info("Number of data files delete failures: " + status.current.errors);
          deleteSpan.stop();
         
          // check bulk dirs we just to deleted files from to see if empty
          deleteEmptyBulkDirs(candidates);
        }
       
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        log.info("Beginning garbage collection of write-ahead logs");
        GarbageCollectWriteAheadLogs.collect(fs, status);
      } catch (Exception e) {
        log.error(e, e);
      }
      waLogs.stop();
      gcSpan.stop();
     
      Trace.offNoFlush();
      try {
        log.debug("Sleeping for " + gcDelay + " milliseconds");
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      int count = scanServers(fileToServerMap);
      long fileScanStop = System.currentTimeMillis();
      log.info(String.format("Fetched %d files from %d servers in %.2f seconds", fileToServerMap.size(), count,
          (fileScanStop - status.currentLog.started) / 1000.));
      status.currentLog.candidates = fileToServerMap.size();
      span.stop();
     
      span = Trace.start("removeMetadataEntries");
      try {
        count = removeMetadataEntries(fileToServerMap, status);
      } catch (Exception ex) {
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        count = removeMetadataEntries(fileToServerMap, status);
      } catch (Exception ex) {
        log.error("Unable to scan metadata table", ex);
        return;
      } finally {
        span.stop();
      }
     
      long logEntryScanStop = System.currentTimeMillis();
      log.info(String.format("%d log entries scanned in %.2f seconds", count, (logEntryScanStop - fileScanStop) / 1000.));
     
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      long removeStop = System.currentTimeMillis();
      log.info(String.format("%d total logs removed from %d servers in %.2f seconds", count, serverToFileMap.size(), (removeStop - logEntryScanStop) / 1000.));
      status.currentLog.finished = removeStop;
      status.lastLog = status.currentLog;
      status.currentLog = new GcCycleStats();
      span.stop();
     
    } catch (Exception e) {
      log.error("exception occured while garbage collecting write ahead logs", e);
      span.stop();
    }
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      status.currentLog = new GcCycleStats();
      span.stop();
     
    } catch (Exception e) {
      log.error("exception occured while garbage collecting write ahead logs", e);
      span.stop();
    }
  }
 
  private static int removeFiles(final FileSystem fs, Map<String,ArrayList<String>> serverToFileMap, final GCStatus status) {
    final AtomicInteger count = new AtomicInteger();
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          @Override
          public int compare(Pair<LogFileKey,LogFileValue> o1, Pair<LogFileKey,LogFileValue> o2) {
            return o1.getFirst().compareTo(o2.getFirst());
          }
        });
        span.stop();
        span = Trace.start("Logger write");
        span.data("logfile", dest.getName());
        MapFile.Writer writer = new MapFile.Writer(conf, fs, path, LogFileKey.class, LogFileValue.class);
        short replication = 1;
        fs.setReplication(new Path(path + "/" + MapFile.DATA_FILE_NAME), replication);
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