private void loadCache() { File baseDir = config.getInfoDir(); if (!baseDir.exists()) { return; } List<DataSegment> cachedSegments = Lists.newArrayList(); for (File file : baseDir.listFiles()) { log.info("Loading segment cache file [%s]", file); try { DataSegment segment = jsonMapper.readValue(file, DataSegment.class); if (serverManager.isSegmentCached(segment)) { cachedSegments.add(segment); } else { log.warn( "Unable to find cache file for %s. Deleting lookup entry", segment.getIdentifier()); File segmentInfoCacheFile = new File(config.getInfoDir(), segment.getIdentifier()); if (!segmentInfoCacheFile.delete()) { log.warn("Unable to delete segmentInfoCacheFile[%s]", segmentInfoCacheFile); } } } catch (Exception e) { log.makeAlert(e, "Failed to load segment from segmentInfo file") .addData("file", file) .emit(); } } addSegments(cachedSegments); }