+++ /dev/null
-/*******************************************************************************\r
- * ============LICENSE_START==================================================\r
- * * org.onap.dmaap\r
- * * ===========================================================================\r
- * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.\r
- * * ===========================================================================\r
- * * Licensed under the Apache License, Version 2.0 (the "License");\r
- * * you may not use this file except in compliance with the License.\r
- * * You may obtain a copy of the License at\r
- * * \r
- * * http://www.apache.org/licenses/LICENSE-2.0\r
- * * \r
- * * Unless required by applicable law or agreed to in writing, software\r
- * * distributed under the License is distributed on an "AS IS" BASIS,\r
- * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
- * * See the License for the specific language governing permissions and\r
- * * limitations under the License.\r
- * * ============LICENSE_END====================================================\r
- * *\r
- * * ECOMP is a trademark and service mark of AT&T Intellectual Property.\r
- * *\r
- ******************************************************************************/\r
-\r
-package com.att.research.datarouter.node;\r
-\r
-import java.util.*;\r
-import java.io.*;\r
-import org.apache.log4j.Logger;\r
-\r
-/**\r
- * Main control point for delivering files to destinations.\r
- * <p>\r
- * The Delivery class manages assignment of delivery threads to delivery\r
- * queues and creation and destruction of delivery queues as\r
- * configuration changes. DeliveryQueues are assigned threads based on a\r
- * modified round-robin approach giving priority to queues with more work\r
- * as measured by both bytes to deliver and files to deliver and lower\r
- * priority to queues that already have delivery threads working.\r
- * A delivery thread continues to work for a delivery queue as long as\r
- * that queue has more files to deliver.\r
- */\r
-public class Delivery {\r
- private static Logger logger = Logger.getLogger("com.att.research.datarouter.node.Delivery");\r
- private static class DelItem implements Comparable<DelItem> {\r
- private String pubid;\r
- private String spool;\r
- public int compareTo(DelItem x) {\r
- int i = pubid.compareTo(x.pubid);\r
- if (i == 0) {\r
- i = spool.compareTo(x.spool);\r
- }\r
- return(i);\r
- }\r
- public String getPublishId() {\r
- return(pubid);\r
- }\r
- public String getSpool() {\r
- return(spool);\r
- }\r
- public DelItem(String pubid, String spool) {\r
- this.pubid = pubid;\r
- this.spool = spool;\r
- }\r
- }\r
- private double fdstart;\r
- private double fdstop;\r
- private int threads;\r
- private int curthreads;\r
- private NodeConfigManager config;\r
- private Hashtable<String, DeliveryQueue> dqs = new Hashtable<String, DeliveryQueue>();\r
- private DeliveryQueue[] queues = new DeliveryQueue[0];\r
- private int qpos = 0;\r
- private long nextcheck;\r
- private Runnable cmon = new Runnable() {\r
- public void run() {\r
- checkconfig();\r
- }\r
- };\r
- /**\r
- * Constructs a new Delivery system using the specified configuration manager.\r
- * @param config The configuration manager for this delivery system.\r
- */\r
- public Delivery(NodeConfigManager config) {\r
- this.config = config;\r
- config.registerConfigTask(cmon);\r
- checkconfig();\r
- }\r
- private void cleardir(String dir) {\r
- if (dqs.get(dir) != null) {\r
- return;\r
- }\r
- File fdir = new File(dir);\r
- for (File junk: fdir.listFiles()) {\r
- if (junk.isFile()) {\r
- junk.delete();\r
- }\r
- }\r
- fdir.delete();\r
- }\r
- private void freeDiskCheck() {\r
- File spoolfile = new File(config.getSpoolBase());\r
- long tspace = spoolfile.getTotalSpace();\r
- long start = (long)(tspace * fdstart);\r
- long stop = (long)(tspace * fdstop);\r
- long cur = spoolfile.getUsableSpace();\r
- if (cur >= start) {\r
- return;\r
- }\r
- Vector<DelItem> cv = new Vector<DelItem>();\r
- for (String sdir: dqs.keySet()) {\r
- for (String meta: (new File(sdir)).list()) {\r
- if (!meta.endsWith(".M") || meta.charAt(0) == '.') {\r
- continue;\r
- }\r
- cv.add(new DelItem(meta.substring(0, meta.length() - 2), sdir));\r
- }\r
- }\r
- DelItem[] items = cv.toArray(new DelItem[cv.size()]);\r
- Arrays.sort(items);\r
- logger.info("NODE0501 Free disk space below red threshold. current=" + cur + " red=" + start + " total=" + tspace);\r
- for (DelItem item: items) {\r
- long amount = dqs.get(item.getSpool()).cancelTask(item.getPublishId());\r
- logger.info("NODE0502 Attempting to discard " + item.getSpool() + "/" + item.getPublishId() + " to free up disk");\r
- if (amount > 0) {\r
- cur += amount;\r
- if (cur >= stop) {\r
- cur = spoolfile.getUsableSpace();\r
- }\r
- if (cur >= stop) {\r
- logger.info("NODE0503 Free disk space at or above yellow threshold. current=" + cur + " yellow=" + stop + " total=" + tspace);\r
- return;\r
- }\r
- }\r
- }\r
- cur = spoolfile.getUsableSpace();\r
- if (cur >= stop) {\r
- logger.info("NODE0503 Free disk space at or above yellow threshold. current=" + cur + " yellow=" + stop + " total=" + tspace);\r
- return;\r
- }\r
- logger.warn("NODE0504 Unable to recover sufficient disk space to reach green status. current=" + cur + " yellow=" + stop + " total=" + tspace);\r
- }\r
- private void cleardirs() {\r
- String basedir = config.getSpoolBase();\r
- String nbase = basedir + "/n";\r
- for (String nodedir: (new File(nbase)).list()) {\r
- if (!nodedir.startsWith(".")) {\r
- cleardir(nbase + "/" + nodedir);\r
- }\r
- }\r
- String sxbase = basedir + "/s";\r
- for (String sxdir: (new File(sxbase)).list()) {\r
- if (sxdir.startsWith(".")) {\r
- continue;\r
- }\r
- File sxf = new File(sxbase + "/" + sxdir);\r
- for (String sdir: sxf.list()) {\r
- if (!sdir.startsWith(".")) {\r
- cleardir(sxbase + "/" + sxdir + "/" + sdir);\r
- }\r
- }\r
- sxf.delete(); // won't if anything still in it\r
- }\r
- }\r
- private synchronized void checkconfig() {\r
- if (!config.isConfigured()) {\r
- return;\r
- }\r
- fdstart = config.getFreeDiskStart();\r
- fdstop = config.getFreeDiskStop();\r
- threads = config.getDeliveryThreads();\r
- if (threads < 1) {\r
- threads = 1;\r
- }\r
- DestInfo[] alldis = config.getAllDests();\r
- DeliveryQueue[] nqs = new DeliveryQueue[alldis.length];\r
- qpos = 0;\r
- Hashtable<String, DeliveryQueue> ndqs = new Hashtable<String, DeliveryQueue>();\r
- for (DestInfo di: alldis) {\r
- String spl = di.getSpool();\r
- DeliveryQueue dq = dqs.get(spl);\r
- if (dq == null) {\r
- dq = new DeliveryQueue(config, di);\r
- } else {\r
- dq.config(di);\r
- }\r
- ndqs.put(spl, dq);\r
- nqs[qpos++] = dq;\r
- }\r
- queues = nqs;\r
- dqs = ndqs;\r
- cleardirs();\r
- while (curthreads < threads) {\r
- curthreads++;\r
- (new Thread() {\r
- {\r
- setName("Delivery Thread");\r
- }\r
- public void run() {\r
- dodelivery();\r
- }\r
- }).start();\r
- }\r
- nextcheck = 0;\r
- notify();\r
- }\r
- private void dodelivery() {\r
- DeliveryQueue dq;\r
- while ((dq = getNextQueue()) != null) {\r
- dq.run();\r
- }\r
- }\r
- private synchronized DeliveryQueue getNextQueue() {\r
- while (true) {\r
- if (curthreads > threads) {\r
- curthreads--;\r
- return(null);\r
- }\r
- if (qpos < queues.length) {\r
- DeliveryQueue dq = queues[qpos++];\r
- if (dq.isSkipSet()) {\r
- continue;\r
- }\r
- nextcheck = 0;\r
- notify();\r
- return(dq);\r
- }\r
- long now = System.currentTimeMillis();\r
- if (now < nextcheck) {\r
- try {\r
- wait(nextcheck + 500 - now);\r
- } catch (Exception e) {\r
- }\r
- now = System.currentTimeMillis();\r
- }\r
- if (now >= nextcheck) {\r
- nextcheck = now + 5000;\r
- qpos = 0;\r
- freeDiskCheck();\r
- }\r
- }\r
- }\r
- /**\r
- * Reset the retry timer for a delivery queue\r
- */\r
- public synchronized void resetQueue(String spool) {\r
- if (spool != null) {\r
- DeliveryQueue dq = dqs.get(spool);\r
- if (dq != null) {\r
- dq.resetQueue();\r
- }\r
- }\r
- }\r
-}\r
Code Review / dmaap / datarouter.git / blobdiff