- 使用 Spring Initializr 创建 Spring Boot 应用程序
- 在Spring Boot中配置Cassandra
- 在 Spring Boot 上配置 Tomcat 连接池
- 将Camel消息路由到嵌入WildFly的Artemis上
本文整理了Java中org.apache.hadoop.hbase.zookeeper.ZKUtil.multiOrSequential()
方法的一些代码示例,展示了ZKUtil.multiOrSequential()
的具体用法。这些代码示例主要来源于Github
/Stackoverflow
/Maven
等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。ZKUtil.multiOrSequential()
方法的具体详情如下:
包路径:org.apache.hadoop.hbase.zookeeper.ZKUtil
类名称:ZKUtil
方法名:multiOrSequential
[英]Use ZooKeeper's multi-update functionality. If all of the following are true: - runSequentialOnMultiFailure is true - on calling multi, we get a ZooKeeper exception that can be handled by a sequential call() Then: - we retry the operations one-by-one (sequentially) Note : an example is receiving a NodeExistsException from a "create" call. Without multi, a user could call "createAndFailSilent" to ensure that a node exists if they don't care who actually created the node (i.e. the NodeExistsException from ZooKeeper is caught). This will cause all operations in the multi to fail, however, because the NodeExistsException that zk.create throws will fail the multi transaction. In this case, if the previous conditions hold, the commands are run sequentially, which should result in the correct final state, but means that the operations will not run atomically.
[中]使用ZooKeeper的多重更新功能。如果以下所有条件均为真:-runSequentialOnMultiFailure为真-在调用multi时,我们会得到一个ZooKeeper异常,该异常可以通过顺序调用()处理,然后:-我们逐个(顺序)重试操作注:一个示例是从“创建”调用接收NodeExistsException。如果没有multi,用户可以调用“createAndFailSilent”,以确保节点存在,前提是他们不关心节点的实际创建者(即,ZooKeeper的NodeExistsException被捕获)。然而,这将导致multi中的所有操作失败,因为NodeExistsException。创建抛出将使多事务失败。在这种情况下,如果前面的条件保持不变,命令将按顺序运行,这将导致正确的最终状态,但这意味着操作将不会以原子方式运行。
代码示例来源:origin: apache/hbase
@Override
public void removeLastSequenceIds(String peerId, List<String> encodedRegionNames)
throws ReplicationException {
try {
List<ZKUtilOp> listOfOps =
encodedRegionNames.stream().map(n -> getSerialReplicationRegionPeerNode(n, peerId))
.map(ZKUtilOp::deleteNodeFailSilent).collect(Collectors.toList());
ZKUtil.multiOrSequential(zookeeper, listOfOps, true);
} catch (KeeperException e) {
throw new ReplicationException("Failed to remove last sequence ids, peerId=" + peerId +
", encodedRegionNames.size=" + encodedRegionNames.size(), e);
}
}
代码示例来源:origin: apache/hbase
@Override
public void removeHFileRefs(String peerId, List<String> files) throws ReplicationException {
String peerNode = getHFileRefsPeerNode(peerId);
LOG.debug("Removing hfile references {} from queue {}", files, peerNode);
List<ZKUtilOp> listOfOps = files.stream().map(n -> getHFileNode(peerNode, n))
.map(ZKUtilOp::deleteNodeFailSilent).collect(toList());
LOG.debug("The multi list size for removing hfile references in zk for node {} is {}",
peerNode, listOfOps.size());
try {
ZKUtil.multiOrSequential(this.zookeeper, listOfOps, true);
} catch (KeeperException e) {
throw new ReplicationException("Failed to remove hfile reference from peer " + peerId, e);
}
}
代码示例来源:origin: apache/hbase
@Override
public void addHFileRefs(String peerId, List<Pair<Path, Path>> pairs)
throws ReplicationException {
String peerNode = getHFileRefsPeerNode(peerId);
LOG.debug("Adding hfile references {} in queue {}", pairs, peerNode);
List<ZKUtilOp> listOfOps = pairs.stream().map(p -> p.getSecond().getName())
.map(n -> getHFileNode(peerNode, n))
.map(f -> ZKUtilOp.createAndFailSilent(f, HConstants.EMPTY_BYTE_ARRAY)).collect(toList());
LOG.debug("The multi list size for adding hfile references in zk for node {} is {}",
peerNode, listOfOps.size());
try {
ZKUtil.multiOrSequential(this.zookeeper, listOfOps, true);
} catch (KeeperException e) {
throw new ReplicationException("Failed to add hfile reference to peer " + peerId, e);
}
}
代码示例来源:origin: apache/hbase
@Override
public void setLastSequenceIds(String peerId, Map<String, Long> lastSeqIds)
throws ReplicationException {
try {
// No need CAS and retry here, because it'll call setLastSequenceIds() for disabled peers
// only, so no conflict happen.
List<ZKUtilOp> listOfOps = new ArrayList<>();
for (Entry<String, Long> lastSeqEntry : lastSeqIds.entrySet()) {
String path = getSerialReplicationRegionPeerNode(lastSeqEntry.getKey(), peerId);
ZKUtil.createWithParents(zookeeper, path);
listOfOps.add(ZKUtilOp.setData(path, ZKUtil.positionToByteArray(lastSeqEntry.getValue())));
}
if (!listOfOps.isEmpty()) {
ZKUtil.multiOrSequential(zookeeper, listOfOps, true);
}
} catch (KeeperException e) {
throw new ReplicationException("Failed to set last sequence ids, peerId=" + peerId
+ ", size of lastSeqIds=" + lastSeqIds.size(), e);
}
}
代码示例来源:origin: apache/hbase
multiOrSequential(zkw, ops, runSequentialOnMultiFailure);
代码示例来源:origin: apache/hbase
@Override
public void setWALPosition(ServerName serverName, String queueId, String fileName, long position,
Map<String, Long> lastSeqIds) throws ReplicationException {
try {
for (int retry = 0;; retry++) {
List<ZKUtilOp> listOfOps = new ArrayList<>();
if (position > 0) {
listOfOps.add(ZKUtilOp.setData(getFileNode(serverName, queueId, fileName),
ZKUtil.positionToByteArray(position)));
}
// Persist the max sequence id(s) of regions for serial replication atomically.
addLastSeqIdsToOps(queueId, lastSeqIds, listOfOps);
if (listOfOps.isEmpty()) {
return;
}
try {
ZKUtil.multiOrSequential(zookeeper, listOfOps, false);
return;
} catch (KeeperException.BadVersionException | KeeperException.NodeExistsException e) {
LOG.warn(
"Bad version(or node exist) when persist the last pushed sequence id to zookeeper storage, "
+ "Retry = " + retry + ", serverName=" + serverName + ", queueId=" + queueId
+ ", fileName=" + fileName);
}
}
} catch (KeeperException e) {
throw new ReplicationException("Failed to set log position (serverName=" + serverName
+ ", queueId=" + queueId + ", fileName=" + fileName + ", position=" + position + ")", e);
}
}
代码示例来源:origin: apache/hbase
multiOrSequential(zkw, ops, runSequentialOnMultiFailure);
代码示例来源:origin: apache/hbase
@Override
public void transitPeerSyncReplicationState(String peerId) throws ReplicationException {
String newStateNode = getNewSyncReplicationStateNode(peerId);
try {
byte[] data = ZKUtil.getData(zookeeper, newStateNode);
ZKUtil.multiOrSequential(zookeeper,
Arrays.asList(ZKUtilOp.setData(newStateNode, NONE_STATE_ZNODE_BYTES),
ZKUtilOp.setData(getSyncReplicationStateNode(peerId), data)),
false);
} catch (KeeperException | InterruptedException e) {
throw new ReplicationException(
"Error transiting sync replication state for peer with id=" + peerId, e);
}
}
代码示例来源:origin: apache/hbase
ZKUtil.multiOrSequential(watcher, zkOps, false);
} catch (KeeperException e) {
LOG.error("Failed to write to rsGroupZNode", e);
代码示例来源:origin: apache/hbase
ops.add(ZKUtilOp.deleteNodeFailSilent(path));
try {
ZKUtil.multiOrSequential(zkw, ops, false);
} catch (KeeperException.NoNodeException nne) {
caughtNoNode = true;
ops.add(ZKUtilOp.setData(path, Bytes.toBytes(path)));
try {
ZKUtil.multiOrSequential(zkw, ops, false);
} catch (KeeperException.NoNodeException nne) {
caughtNoNode = true;
ops = new LinkedList<>();
ops.add(ZKUtilOp.createAndFailSilent(path, Bytes.toBytes(path)));
ZKUtil.multiOrSequential(zkw, ops, false);
try {
ZKUtil.multiOrSequential(zkw, ops, false);
} catch (KeeperException.NodeExistsException nee) {
caughtNodeExists = true;
代码示例来源:origin: apache/hbase
@Test
public void testSimpleMulti() throws Exception {
// null multi
ZKUtil.multiOrSequential(zkw, null, false);
// empty multi
ZKUtil.multiOrSequential(zkw, new LinkedList<>(), false);
// single create
String path = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "testSimpleMulti");
LinkedList<ZKUtilOp> singleCreate = new LinkedList<>();
singleCreate.add(ZKUtilOp.createAndFailSilent(path, new byte[0]));
ZKUtil.multiOrSequential(zkw, singleCreate, false);
assertTrue(ZKUtil.checkExists(zkw, path) != -1);
// single setdata
LinkedList<ZKUtilOp> singleSetData = new LinkedList<>();
byte [] data = Bytes.toBytes("foobar");
singleSetData.add(ZKUtilOp.setData(path, data));
ZKUtil.multiOrSequential(zkw, singleSetData, false);
assertTrue(Bytes.equals(ZKUtil.getData(zkw, path), data));
// single delete
LinkedList<ZKUtilOp> singleDelete = new LinkedList<>();
singleDelete.add(ZKUtilOp.deleteNodeFailSilent(path));
ZKUtil.multiOrSequential(zkw, singleDelete, false);
assertTrue(ZKUtil.checkExists(zkw, path) == -1);
}
代码示例来源:origin: apache/hbase
ZKUtil.multiOrSequential(zookeeper, listOfOps, false);
代码示例来源:origin: apache/hbase
@Override
public void addPeer(String peerId, ReplicationPeerConfig peerConfig, boolean enabled,
SyncReplicationState syncReplicationState) throws ReplicationException {
List<ZKUtilOp> multiOps = Arrays.asList(
ZKUtilOp.createAndFailSilent(getPeerNode(peerId),
ReplicationPeerConfigUtil.toByteArray(peerConfig)),
ZKUtilOp.createAndFailSilent(getPeerStateNode(peerId),
enabled ? ENABLED_ZNODE_BYTES : DISABLED_ZNODE_BYTES),
ZKUtilOp.createAndFailSilent(getSyncReplicationStateNode(peerId),
SyncReplicationState.toByteArray(syncReplicationState)),
ZKUtilOp.createAndFailSilent(getNewSyncReplicationStateNode(peerId), NONE_STATE_ZNODE_BYTES));
try {
ZKUtil.createWithParents(zookeeper, peersZNode);
ZKUtil.multiOrSequential(zookeeper, multiOps, false);
} catch (KeeperException e) {
throw new ReplicationException(
"Could not add peer with id=" + peerId + ", peerConfig=>" + peerConfig + ", state=" +
(enabled ? "ENABLED" : "DISABLED") + ", syncReplicationState=" + syncReplicationState,
e);
}
}
代码示例来源:origin: apache/hbase
@Test
public void testRunSequentialOnMultiFailure() throws Exception {
String path1 = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "runSequential1");
String path2 = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "runSequential2");
String path3 = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "runSequential3");
String path4 = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "runSequential4");
// create some nodes that we will use later
LinkedList<ZKUtilOp> ops = new LinkedList<>();
ops.add(ZKUtilOp.createAndFailSilent(path1, Bytes.toBytes(path1)));
ops.add(ZKUtilOp.createAndFailSilent(path2, Bytes.toBytes(path2)));
ZKUtil.multiOrSequential(zkw, ops, false);
// test that, even with operations that fail, the ones that would pass will pass
// with runSequentialOnMultiFailure
ops = new LinkedList<>();
ops.add(ZKUtilOp.setData(path1, Bytes.add(Bytes.toBytes(path1), Bytes.toBytes(path1)))); // pass
ops.add(ZKUtilOp.deleteNodeFailSilent(path2)); // pass
ops.add(ZKUtilOp.deleteNodeFailSilent(path3)); // fail -- node doesn't exist
ops.add(ZKUtilOp.createAndFailSilent(path4,
Bytes.add(Bytes.toBytes(path4), Bytes.toBytes(path4)))); // pass
ZKUtil.multiOrSequential(zkw, ops, true);
assertTrue(Bytes.equals(ZKUtil.getData(zkw, path1),
Bytes.add(Bytes.toBytes(path1), Bytes.toBytes(path1))));
assertTrue(ZKUtil.checkExists(zkw, path2) == -1);
assertTrue(ZKUtil.checkExists(zkw, path3) == -1);
assertFalse(ZKUtil.checkExists(zkw, path4) == -1);
}
代码示例来源:origin: apache/hbase
@Test
public void testSetDataWithVersion() throws Exception {
ZKUtil.createWithParents(ZKW, "/s1/s2/s3");
int v0 = getZNodeDataVersion("/s1/s2/s3");
assertEquals(0, v0);
ZKUtil.setData(ZKW, "/s1/s2/s3", Bytes.toBytes(12L));
int v1 = getZNodeDataVersion("/s1/s2/s3");
assertEquals(1, v1);
ZKUtil.multiOrSequential(ZKW,
ImmutableList.of(ZKUtilOp.setData("/s1/s2/s3", Bytes.toBytes(13L), v1)), false);
int v2 = getZNodeDataVersion("/s1/s2/s3");
assertEquals(2, v2);
}
代码示例来源:origin: apache/hbase
@Test
public void testSingleFailureInMulti() throws Exception {
// try a multi where all but one operation succeeds
String pathA = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "testSingleFailureInMultiA");
String pathB = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "testSingleFailureInMultiB");
String pathC = ZNodePaths.joinZNode(zkw.getZNodePaths().baseZNode, "testSingleFailureInMultiC");
LinkedList<ZKUtilOp> ops = new LinkedList<>();
ops.add(ZKUtilOp.createAndFailSilent(pathA, Bytes.toBytes(pathA)));
ops.add(ZKUtilOp.createAndFailSilent(pathB, Bytes.toBytes(pathB)));
ops.add(ZKUtilOp.deleteNodeFailSilent(pathC));
boolean caughtNoNode = false;
try {
ZKUtil.multiOrSequential(zkw, ops, false);
} catch (KeeperException.NoNodeException nne) {
caughtNoNode = true;
}
assertTrue(caughtNoNode);
// assert that none of the operations succeeded
assertTrue(ZKUtil.checkExists(zkw, pathA) == -1);
assertTrue(ZKUtil.checkExists(zkw, pathB) == -1);
assertTrue(ZKUtil.checkExists(zkw, pathC) == -1);
}
代码示例来源:origin: apache/hbase
create4Nodes.add(ZKUtilOp.createAndFailSilent(path3, Bytes.toBytes(path3)));
create4Nodes.add(ZKUtilOp.createAndFailSilent(path4, Bytes.toBytes(path4)));
ZKUtil.multiOrSequential(zkw, create4Nodes, false);
assertTrue(Bytes.equals(ZKUtil.getData(zkw, path1), Bytes.toBytes(path1)));
assertTrue(Bytes.equals(ZKUtil.getData(zkw, path2), Bytes.toBytes(path2)));
ZKUtil.multiOrSequential(zkw, ops, false);
assertTrue(Bytes.equals(ZKUtil.getData(zkw, path1),
Bytes.add(Bytes.toBytes(path1), Bytes.toBytes(path1))));
代码示例来源:origin: apache/hbase
ZKUtil.multiOrSequential(zkw, ops, false);
ZKUtil.multiOrSequential(zkw, ops, false);
} catch (KeeperException.NodeExistsException nee) {
ZKUtil.multiOrSequential(zkw, ops, false);
} catch (KeeperException.NoNodeException nne) {
代码示例来源:origin: org.apache.hbase/hbase-replication
@Override
public void removeLastSequenceIds(String peerId, List<String> encodedRegionNames)
throws ReplicationException {
try {
List<ZKUtilOp> listOfOps =
encodedRegionNames.stream().map(n -> getSerialReplicationRegionPeerNode(n, peerId))
.map(ZKUtilOp::deleteNodeFailSilent).collect(Collectors.toList());
ZKUtil.multiOrSequential(zookeeper, listOfOps, true);
} catch (KeeperException e) {
throw new ReplicationException("Failed to remove last sequence ids, peerId=" + peerId +
", encodedRegionNames.size=" + encodedRegionNames.size(), e);
}
}
代码示例来源:origin: org.apache.hbase/hbase-zookeeper
@Test
public void testSetDataWithVersion() throws Exception {
ZKUtil.createWithParents(ZKW, "/s1/s2/s3");
int v0 = getZNodeDataVersion("/s1/s2/s3");
assertEquals(0, v0);
ZKUtil.setData(ZKW, "/s1/s2/s3", Bytes.toBytes(12L));
int v1 = getZNodeDataVersion("/s1/s2/s3");
assertEquals(1, v1);
ZKUtil.multiOrSequential(ZKW,
ImmutableList.of(ZKUtilOp.setData("/s1/s2/s3", Bytes.toBytes(13L), v1)), false);
int v2 = getZNodeDataVersion("/s1/s2/s3");
assertEquals(2, v2);
}
我在网上搜索但没有找到任何合适的文章解释如何使用 javascript 使用 WCF 服务,尤其是 WebScriptEndpoint。 任何人都可以对此给出任何指导吗? 谢谢 最佳答案 这是一篇关于
我正在编写一个将运行 Linux 命令的 C 程序,例如: cat/etc/passwd | grep 列表 |剪切-c 1-5 我没有任何结果 *这里 parent 等待第一个 child (chi
所以我正在尝试处理文件上传,然后将该文件作为二进制文件存储到数据库中。在我存储它之后,我尝试在给定的 URL 上提供文件。我似乎找不到适合这里的方法。我需要使用数据库,因为我使用 Google 应用引
我正在尝试制作一个宏,将下面的公式添加到单元格中,然后将其拖到整个列中并在 H 列中复制相同的公式 我想在 F 和 H 列中输入公式的数据 Range("F1").formula = "=IF(ISE
问题类似于this one ,但我想使用 OperatorPrecedenceParser 解析带有函数应用程序的表达式在 FParsec . 这是我的 AST: type Expression =
我想通过使用 sequelize 和 node.js 将这个查询更改为代码取决于在哪里 select COUNT(gender) as genderCount from customers where
我正在使用GNU bash,版本5.0.3(1)-发行版(x86_64-pc-linux-gnu),我想知道为什么简单的赋值语句会出现语法错误: #/bin/bash var1=/tmp
这里,为什么我的代码在 IE 中不起作用。我的代码适用于所有浏览器。没有问题。但是当我在 IE 上运行我的项目时,它发现错误。 而且我的 jquery 类和 insertadjacentHTMl 也不
我正在尝试更改标签的innerHTML。我无权访问该表单,因此无法编辑 HTML。标签具有的唯一标识符是“for”属性。 这是输入和标签的结构:
我有一个页面,我可以在其中返回用户帖子,可以使用一些 jquery 代码对这些帖子进行即时评论,在发布新评论后,我在帖子下插入新评论以及删除 按钮。问题是 Delete 按钮在新插入的元素上不起作用,
我有一个大约有 20 列的“管道分隔”文件。我只想使用 sha1sum 散列第一列,它是一个数字,如帐号,并按原样返回其余列。 使用 awk 或 sed 执行此操作的最佳方法是什么? Accounti
我需要将以下内容插入到我的表中...我的用户表有五列 id、用户名、密码、名称、条目。 (我还没有提交任何东西到条目中,我稍后会使用 php 来做)但由于某种原因我不断收到这个错误:#1054 - U
所以我试图有一个输入字段,我可以在其中输入任何字符,但然后将输入的值小写,删除任何非字母数字字符,留下“。”而不是空格。 例如,如果我输入: 地球的 70% 是水,-!*#$^^ & 30% 土地 输
我正在尝试做一些我认为非常简单的事情,但出于某种原因我没有得到想要的结果?我是 javascript 的新手,但对 java 有经验,所以我相信我没有使用某种正确的规则。 这是一个获取输入值、检查选择
我想使用 angularjs 从 mysql 数据库加载数据。 这就是应用程序的工作原理;用户登录,他们的用户名存储在 cookie 中。该用户名显示在主页上 我想获取这个值并通过 angularjs
我正在使用 autoLayout,我想在 UITableViewCell 上放置一个 UIlabel,它应该始终位于单元格的右侧和右侧的中心。 这就是我想要实现的目标 所以在这里你可以看到我正在谈论的
我需要与 MySql 等效的 elasticsearch 查询。我的 sql 查询: SELECT DISTINCT t.product_id AS id FROM tbl_sup_price t
我正在实现代码以使用 JSON。 func setup() { if let flickrURL = NSURL(string: "https://api.flickr.com/
我尝试使用for循环声明变量,然后测试cols和rols是否相同。如果是,它将运行递归函数。但是,我在 javascript 中执行 do 时遇到问题。有人可以帮忙吗? 现在,在比较 col.1 和
我举了一个我正在处理的问题的简短示例。 HTML代码: 1 2 3 CSS 代码: .BB a:hover{ color: #000; } .BB > li:after {
我是一名优秀的程序员,十分优秀!