Accumulo被卡住了，不能启动

Question

我一直在尝试安装Accumulo，并尝试了几天，但在开始之前它就被占用了。我最终使用的是安装了HortonWorks和Zookeeper的Hadoop。我按照Accmulo设置页面上的说明更改了配置，如下所示：

[root@sandbox ~]# vi /etc/accumulo/conf/accumulo-env.sh
if [ -z "$ACCUMULO_HOME" ]
then
test -z "$ACCUMULO_HOME"     && export ACCUMULO_HOME=/usr/hdp/2.2.0.0-2041/accumulo
fi

if [ -z "$HADOOP_HOME" ]
then
   test -z "$HADOOP_PREFIX"      && export HADOOP_PREFIX=/usr/hdp/current/hadoop-client
else
   HADOOP_PREFIX="$HADOOP_HOME"
   unset HADOOP_HOME
fi

# hadoop-1.2:
# test -z "$HADOOP_CONF_DIR"       && export HADOOP_CONF_DIR="$HADOOP_PREFIX/conf"
# hadoop-2.0:
test -z "$HADOOP_CONF_DIR"     && export HADOOP_CONF_DIR="$HADOOP_PREFIX/etc/hadoop/conf"

test -z "$JAVA_HOME"             && export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk.x86_64
test -z "$ZOOKEEPER_HOME"        && export ZOOKEEPER_HOME=/usr/hdp/current/zookeeper-client
test -z "$ACCUMULO_LOG_DIR"      && export ACCUMULO_LOG_DIR=$ACCUMULO_HOME/logs
if [ -f ${ACCUMULO_CONF_DIR}/accumulo.policy ]
then
   POLICY="-Djava.security.manager -Djava.security.policy=${ACCUMULO_CONF_DIR}/accumulo.policy"
fi

使用这个配置，我能够成功地启动Accumulo：

[root@sandbox ~]# /usr/hdp/2.2.0.0-2041/accumulo/bin/start-all.sh
Starting monitor on localhost
WARN : Max open files on localhost is 1024, recommend 32768
Starting tablet servers .... done
Starting tablet server on localhost
WARN : Max open files on localhost is 1024, recommend 32768
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/root/reza/accumulo-1.6.1/lib/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/client/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/client/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
2015-02-09 05:30:21,742 [fs.VolumeManagerImpl] WARN : dfs.datanode.synconclose set to false in hdfs-site.xml: data loss is possible on system reset or power loss
2015-02-09 05:30:21,760 [server.Accumulo] INFO : Attempting to talk to zookeeper
2015-02-09 05:30:21,920 [server.Accumulo] INFO : Zookeeper connected and initialized, attemping to talk to HDFS
2015-02-09 05:30:22,195 [server.Accumulo] INFO : Connected to HDFS
2015-02-09 05:30:22,207 [fs.VolumeManagerImpl] WARN : dfs.datanode.synconclose set to false in hdfs-site.xml: data loss is possible on system reset or power loss
Starting master on localhost
WARN : Max open files on localhost is 1024, recommend 32768
Starting garbage collector on localhost
WARN : Max open files on localhost is 1024, recommend 32768
Starting tracer on localhost
WARN : Max open files on localhost is 1024, recommend 32768 

我还能够成功地初始化Accumulo：

[root@sandbox ~]#  /usr/hdp/2.2.0.0-2041/accumulo/bin/accumulo init
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/root/reza/accumulo-1.6.1/lib/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/client/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/client/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
2015-02-09 04:40:56,225 [fs.VolumeManagerImpl] WARN : dfs.datanode.synconclose set to false in hdfs-site.xml: data loss is possible on system reset or power loss
2015-02-09 04:40:56,229 [init.Initialize] INFO : Hadoop Filesystem is hdfs://sandbox.hortonworks.com:8020
2015-02-09 04:40:56,232 [init.Initialize] INFO : Accumulo data dirs are [hdfs://sandbox.hortonworks.com:8020/accumulo]
2015-02-09 04:40:56,232 [init.Initialize] INFO : Zookeeper server is localhost:2181
2015-02-09 04:40:56,232 [init.Initialize] INFO : Checking if Zookeeper is available. If this hangs, then you need to make sure zookeeper is running
Warning!!! Your instance secret is still set to the default, this is not secure. We highly recommend you change it.
    You can change the instance secret in accumulo by using:
       bin/accumulo org.apache.accumulo.server.util.ChangeSecret oldPassword newPassword.
    You will also need to edit your secret in your configuration file by adding the property instance.secret to your conf/accumulo-site.xml. Without this accumulo will not operate correctly
    Instance name : reza
    Instance name "reza" exists. Delete existing entry from zookeeper? [Y/N] : N
    Instance name : reza2
    Enter initial password for root (this may not be applicable for your security setup): ****
    Confirm initial password for root: ****
    2015-02-09 04:42:32,497 [Configuration.deprecation] INFO : dfs.replication.min is deprecated. Instead, use dfs.namenode.replication.min
    2015-02-09 04:42:32,509 [fs.VolumeManagerImpl] WARN : dfs.datanode.synconclose set to false in hdfs-site.xml: data loss is possible on system reset or power loss
    2015-02-09 04:42:33,208 [Configuration.deprecation] INFO : dfs.block.size is deprecated. Instead, use dfs.blocksize
    2015-02-09 04:42:33,964 [conf.AccumuloConfiguration] INFO : Loaded class : org.apache.accumulo.server.security.handler.ZKAuthorizor
    2015-02-09 04:42:33,969 [conf.AccumuloConfiguration] INFO : Loaded class : org.apache.accumulo.server.security.handler.ZKAuthenticator
    2015-02-09 04:42:33,973 [conf.AccumuloConfiguration] INFO : Loaded class : org.apache.accumulo.server.security.handler.ZKPermHandler

但是，当我尝试启动一个Accumulo shell来尝试它时，它被阻塞了，并且没有抛出任何错误：

[root@sandbox ~]# /usr/bin/accumulo shell --password reza
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/root/reza/accumulo-1.6.1/lib/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/client/slf4j-log4j12.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/hdp/current/hadoop-client/client/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
2015-02-09 05:21:15,397 [impl.ServerClient] WARN : There are no tablet servers: check that zookeeper and accumulo are running. 

它不会继续前进，也不会给我一个shell去尝试。对如何解决这个问题或问题是什么有什么建议吗？

Answer 1

您可能需要指定实例名称和ZooKeeper主机信息。使用--help启动shell以查找正确的命令行选项。

注意:您可以通过在命令行上使用--debug启动Accumulo shell来调试它。

Answer 2

在尝试启动shell之前，您是否启动了Accumulo？

/usr/hdp/2.2.0.0-2041/accumulo/bin/start-all.sh

然后

/usr/bin/accumulo shell --password reza