Java Code Examples for org.apache.hadoop.hdfs.protocol.CacheDirectiveInfo#getReplication()

The following examples show how to use org.apache.hadoop.hdfs.protocol.CacheDirectiveInfo#getReplication() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: FSImageSerialization.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
public static void writeCacheDirectiveInfo(DataOutputStream out,
    CacheDirectiveInfo directive) throws IOException {
  writeLong(directive.getId(), out);
  int flags =
      ((directive.getPath() != null) ? 0x1 : 0) |
      ((directive.getReplication() != null) ? 0x2 : 0) |
      ((directive.getPool() != null) ? 0x4 : 0) |
      ((directive.getExpiration() != null) ? 0x8 : 0);
  out.writeInt(flags);
  if (directive.getPath() != null) {
    writeString(directive.getPath().toUri().getPath(), out);
  }
  if (directive.getReplication() != null) {
    writeShort(directive.getReplication(), out);
  }
  if (directive.getPool() != null) {
    writeString(directive.getPool(), out);
  }
  if (directive.getExpiration() != null) {
    writeLong(directive.getExpiration().getMillis(), out);
  }
}
Example 2
Source File: FSImageSerialization.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
public static void writeCacheDirectiveInfo(ContentHandler contentHandler,
    CacheDirectiveInfo directive) throws SAXException {
  XMLUtils.addSaxString(contentHandler, "ID",
      Long.toString(directive.getId()));
  if (directive.getPath() != null) {
    XMLUtils.addSaxString(contentHandler, "PATH",
        directive.getPath().toUri().getPath());
  }
  if (directive.getReplication() != null) {
    XMLUtils.addSaxString(contentHandler, "REPLICATION",
        Short.toString(directive.getReplication()));
  }
  if (directive.getPool() != null) {
    XMLUtils.addSaxString(contentHandler, "POOL", directive.getPool());
  }
  if (directive.getExpiration() != null) {
    XMLUtils.addSaxString(contentHandler, "EXPIRATION",
        "" + directive.getExpiration().getMillis());
  }
}
Example 3
Source File: CacheManager.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
/**
 * Factory method that makes a new CacheDirectiveInfo by applying fields in a
 * CacheDirectiveInfo to an existing CacheDirective.
 * 
 * @param info with some or all fields set.
 * @param defaults directive providing default values for unset fields in
 *          info.
 * 
 * @return new CacheDirectiveInfo of the info applied to the defaults.
 */
private static CacheDirectiveInfo createFromInfoAndDefaults(
    CacheDirectiveInfo info, CacheDirective defaults) {
  // Initialize the builder with the default values
  CacheDirectiveInfo.Builder builder =
      new CacheDirectiveInfo.Builder(defaults.toInfo());
  // Replace default with new value if present
  if (info.getPath() != null) {
    builder.setPath(info.getPath());
  }
  if (info.getReplication() != null) {
    builder.setReplication(info.getReplication());
  }
  if (info.getPool() != null) {
    builder.setPool(info.getPool());
  }
  if (info.getExpiration() != null) {
    builder.setExpiration(info.getExpiration());
  }
  return builder.build();
}
Example 4
Source File: CacheManager.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
/**
 * Load cache directives from the fsimage
 */
private void loadDirectives(DataInput in) throws IOException {
  StartupProgress prog = NameNode.getStartupProgress();
  Step step = new Step(StepType.CACHE_ENTRIES);
  prog.beginStep(Phase.LOADING_FSIMAGE, step);
  int numDirectives = in.readInt();
  prog.setTotal(Phase.LOADING_FSIMAGE, step, numDirectives);
  Counter counter = prog.getCounter(Phase.LOADING_FSIMAGE, step);
  for (int i = 0; i < numDirectives; i++) {
    CacheDirectiveInfo info = FSImageSerialization.readCacheDirectiveInfo(in);
    // Get pool reference by looking it up in the map
    final String poolName = info.getPool();
    CacheDirective directive =
        new CacheDirective(info.getId(), info.getPath().toUri().getPath(),
            info.getReplication(), info.getExpiration().getAbsoluteMillis());
    addCacheDirective(poolName, directive);
    counter.increment();
  }
  prog.endStep(Phase.LOADING_FSIMAGE, step);
}
Example 5
Source File: PBHelper.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
public static CacheDirectiveInfoProto convert
    (CacheDirectiveInfo info) {
  CacheDirectiveInfoProto.Builder builder = 
      CacheDirectiveInfoProto.newBuilder();
  if (info.getId() != null) {
    builder.setId(info.getId());
  }
  if (info.getPath() != null) {
    builder.setPath(info.getPath().toUri().getPath());
  }
  if (info.getReplication() != null) {
    builder.setReplication(info.getReplication());
  }
  if (info.getPool() != null) {
    builder.setPool(info.getPool());
  }
  if (info.getExpiration() != null) {
    builder.setExpiration(convert(info.getExpiration()));
  }
  return builder.build();
}
Example 6
Source File: FSImageSerialization.java    From big-c with Apache License 2.0 6 votes vote down vote up 
public static void writeCacheDirectiveInfo(DataOutputStream out,
    CacheDirectiveInfo directive) throws IOException {
  writeLong(directive.getId(), out);
  int flags =
      ((directive.getPath() != null) ? 0x1 : 0) |
      ((directive.getReplication() != null) ? 0x2 : 0) |
      ((directive.getPool() != null) ? 0x4 : 0) |
      ((directive.getExpiration() != null) ? 0x8 : 0);
  out.writeInt(flags);
  if (directive.getPath() != null) {
    writeString(directive.getPath().toUri().getPath(), out);
  }
  if (directive.getReplication() != null) {
    writeShort(directive.getReplication(), out);
  }
  if (directive.getPool() != null) {
    writeString(directive.getPool(), out);
  }
  if (directive.getExpiration() != null) {
    writeLong(directive.getExpiration().getMillis(), out);
  }
}
Example 7
Source File: FSImageSerialization.java    From big-c with Apache License 2.0 6 votes vote down vote up 
public static void writeCacheDirectiveInfo(ContentHandler contentHandler,
    CacheDirectiveInfo directive) throws SAXException {
  XMLUtils.addSaxString(contentHandler, "ID",
      Long.toString(directive.getId()));
  if (directive.getPath() != null) {
    XMLUtils.addSaxString(contentHandler, "PATH",
        directive.getPath().toUri().getPath());
  }
  if (directive.getReplication() != null) {
    XMLUtils.addSaxString(contentHandler, "REPLICATION",
        Short.toString(directive.getReplication()));
  }
  if (directive.getPool() != null) {
    XMLUtils.addSaxString(contentHandler, "POOL", directive.getPool());
  }
  if (directive.getExpiration() != null) {
    XMLUtils.addSaxString(contentHandler, "EXPIRATION",
        "" + directive.getExpiration().getMillis());
  }
}
Example 8
Source File: CacheManager.java    From big-c with Apache License 2.0 6 votes vote down vote up 
/**
 * Factory method that makes a new CacheDirectiveInfo by applying fields in a
 * CacheDirectiveInfo to an existing CacheDirective.
 * 
 * @param info with some or all fields set.
 * @param defaults directive providing default values for unset fields in
 *          info.
 * 
 * @return new CacheDirectiveInfo of the info applied to the defaults.
 */
private static CacheDirectiveInfo createFromInfoAndDefaults(
    CacheDirectiveInfo info, CacheDirective defaults) {
  // Initialize the builder with the default values
  CacheDirectiveInfo.Builder builder =
      new CacheDirectiveInfo.Builder(defaults.toInfo());
  // Replace default with new value if present
  if (info.getPath() != null) {
    builder.setPath(info.getPath());
  }
  if (info.getReplication() != null) {
    builder.setReplication(info.getReplication());
  }
  if (info.getPool() != null) {
    builder.setPool(info.getPool());
  }
  if (info.getExpiration() != null) {
    builder.setExpiration(info.getExpiration());
  }
  return builder.build();
}
Example 9
Source File: CacheManager.java    From big-c with Apache License 2.0 6 votes vote down vote up 
/**
 * Load cache directives from the fsimage
 */
private void loadDirectives(DataInput in) throws IOException {
  StartupProgress prog = NameNode.getStartupProgress();
  Step step = new Step(StepType.CACHE_ENTRIES);
  prog.beginStep(Phase.LOADING_FSIMAGE, step);
  int numDirectives = in.readInt();
  prog.setTotal(Phase.LOADING_FSIMAGE, step, numDirectives);
  Counter counter = prog.getCounter(Phase.LOADING_FSIMAGE, step);
  for (int i = 0; i < numDirectives; i++) {
    CacheDirectiveInfo info = FSImageSerialization.readCacheDirectiveInfo(in);
    // Get pool reference by looking it up in the map
    final String poolName = info.getPool();
    CacheDirective directive =
        new CacheDirective(info.getId(), info.getPath().toUri().getPath(),
            info.getReplication(), info.getExpiration().getAbsoluteMillis());
    addCacheDirective(poolName, directive);
    counter.increment();
  }
  prog.endStep(Phase.LOADING_FSIMAGE, step);
}
Example 10
Source File: PBHelper.java    From big-c with Apache License 2.0 6 votes vote down vote up 
public static CacheDirectiveInfoProto convert
    (CacheDirectiveInfo info) {
  CacheDirectiveInfoProto.Builder builder = 
      CacheDirectiveInfoProto.newBuilder();
  if (info.getId() != null) {
    builder.setId(info.getId());
  }
  if (info.getPath() != null) {
    builder.setPath(info.getPath().toUri().getPath());
  }
  if (info.getReplication() != null) {
    builder.setReplication(info.getReplication());
  }
  if (info.getPool() != null) {
    builder.setPool(info.getPool());
  }
  if (info.getExpiration() != null) {
    builder.setExpiration(convert(info.getExpiration()));
  }
  return builder.build();
}
Example 11
Source File: CacheManager.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
private static short validateReplication(CacheDirectiveInfo directive,
    short defaultValue) throws InvalidRequestException {
  short repl = (directive.getReplication() != null)
      ? directive.getReplication() : defaultValue;
  if (repl <= 0) {
    throw new InvalidRequestException("Invalid replication factor " + repl
        + " <= 0");
  }
  return repl;
}
Example 12
Source File: CacheManager.java    From big-c with Apache License 2.0 5 votes vote down vote up 
private static short validateReplication(CacheDirectiveInfo directive,
    short defaultValue) throws InvalidRequestException {
  short repl = (directive.getReplication() != null)
      ? directive.getReplication() : defaultValue;
  if (repl <= 0) {
    throw new InvalidRequestException("Invalid replication factor " + repl
        + " <= 0");
  }
  return repl;
}
Example 13
Source File: CacheRegistry.java    From nnproxy with Apache License 2.0 4 votes vote down vote up 
public BatchedRemoteIterator.BatchedListEntries<CacheDirectiveEntry> listCacheDirectives(long prevId,
                                                                                         CacheDirectiveInfo filter) throws InvalidRequestException {
    final int NUM_PRE_ALLOCATED_ENTRIES = 16;
    String filterPath = null;
    if (filter.getPath() != null) {
        filterPath = validatePath(filter);
    }
    if (filter.getReplication() != null) {
        throw new InvalidRequestException(
                "Filtering by replication is unsupported.");
    }

    // Querying for a single ID
    final Long id = filter.getId();
    if (id != null) {
        if (!directivesById.containsKey(id)) {
            throw new InvalidRequestException("Did not find requested id " + id);
        }
        // Since we use a tailMap on directivesById, setting prev to id-1 gets
        // us the directive with the id (if present)
        prevId = id - 1;
    }

    ArrayList<CacheDirectiveEntry> replies =
            new ArrayList<CacheDirectiveEntry>(NUM_PRE_ALLOCATED_ENTRIES);
    int numReplies = 0;
    SortedMap<Long, CacheDirectiveEntry> tailMap =
            directivesById.tailMap(prevId + 1);
    for (Map.Entry<Long, CacheDirectiveEntry> cur : tailMap.entrySet()) {
        if (numReplies >= maxListCacheDirectivesNumResponses) {
            return new BatchedRemoteIterator.BatchedListEntries<>(replies, true);
        }
        CacheDirectiveInfo info = cur.getValue().getInfo();

        // If the requested ID is present, it should be the first item.
        // Hitting this case means the ID is not present, or we're on the second
        // item and should break out.
        if (id != null &&
                !(info.getId().equals(id))) {
            break;
        }
        if (filter.getPool() != null &&
                !info.getPool().equals(filter.getPool())) {
            continue;
        }
        if (filterPath != null &&
                !info.getPath().toUri().getPath().equals(filterPath)) {
            continue;
        }
        replies.add(cur.getValue());
        numReplies++;
    }
    return new BatchedRemoteIterator.BatchedListEntries<>(replies, false);
}