我正在编写观察者协处理器，它将特定的表复制到孩子身上。
我的JAVA文件如下所示。
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.coprocessor.BaseRegionObserver;
import org.apache.hadoop.hbase.coprocessor.ObserverContext;
import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.IOException;
public class trigger_test extends BaseRegionObserver {
private byte[] master;
private byte[] family;
public static final Log LOG = LogFactory.getLog(HRegion.class);
@Override
public void start(CoprocessorEnvironment e) throws IOException {
Configuration conf = e.getConfiguration();
master = Bytes.toBytes(conf.get("master"));
family = Bytes.toBytes(conf.get("family"));
}
private void insert(RegionCoprocessorEnvironment env, byte[] row, Put put) throws IOException {
//HTable masterTable = env.getTable(TableName.valueOf(master));
HTableInterface masterTable = env.getTable(TableName.valueOf(master));
try {
masterTable.put(put);
} finally {
System.out.println("Hello, World");
masterTable.close();
}
}
private void remove(RegionCoprocessorEnvironment env, byte[] row) throws IOException {
//HTable masterTable = env.getTable(TableName.valueOf(master));
HTableInterface masterTable = env.getTable(TableName.valueOf(master));
try {
Delete delete = new Delete(row);
//delete.deleteFamily(family);
masterTable.delete(delete);
} finally {
masterTable.close();
}
}
@Override
public void postPut(ObserverContext<RegionCoprocessorEnvironment> e, Put put, WALEdit edit, Durability durability) throws IOException {
RegionCoprocessorEnvironment env = e.getEnvironment();
byte[] row = put.getRow();
LOG.debug("THIS IS DEBUG LOG");
insert(env, row, put);
}
@Override
public void postDelete(ObserverContext<RegionCoprocessorEnvironment> e, Delete delete, WALEdit edit, Durability durability) throws IOException {
RegionCoprocessorEnvironment env = e.getEnvironment();
byte[] row = delete.getRow();
remove(env, row);
}
}
我的~/conf/log4j.properites喜欢以下。
# Define some default values that can be overridden by system properties
hbase.root.logger=DEBUG,console
hbase.security.logger=INFO,console
hbase.log.dir=.
hbase.log.file=hbase.log
# Define the root logger to the system property "hbase.root.logger".
log4j.rootLogger=${hbase.root.logger}
# Logging Threshold
log4j.threshold=ALL
#
# Daily Rolling File Appender
#
log4j.appender.DRFA=org.apache.log4j.DailyRollingFileAppender
log4j.appender.DRFA.File=${hbase.log.dir}/${hbase.log.file}
# Rollver at midnight
log4j.appender.DRFA.DatePattern=.yyyy-MM-dd
# 30-day backup
#log4j.appender.DRFA.MaxBackupIndex=30
log4j.appender.DRFA.layout=org.apache.log4j.PatternLayout
# Pattern format: Date LogLevel LoggerName LogMessage
log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601} %-5p [%t] %c{2}: %m%n
# Rolling File Appender properties
hbase.log.maxfilesize=256MB
hbase.log.maxbackupindex=20
# Rolling File Appender
log4j.appender.RFA=org.apache.log4j.RollingFileAppender
log4j.appender.RFA.File=${hbase.log.dir}/${hbase.log.file}
log4j.appender.RFA.MaxFileSize=${hbase.log.maxfilesize}
log4j.appender.RFA.MaxBackupIndex=${hbase.log.maxbackupindex}
log4j.appender.RFA.layout=org.apache.log4j.PatternLayout
log4j.appender.RFA.layout.ConversionPattern=%d{ISO8601} %-5p [%t] %c{2}: %m%n
#
# Security audit appender
#
hbase.security.log.file=SecurityAuth.audit
hbase.security.log.maxfilesize=256MB
hbase.security.log.maxbackupindex=20
log4j.appender.RFAS=org.apache.log4j.RollingFileAppender
log4j.appender.RFAS.File=${hbase.log.dir}/${hbase.security.log.file}
log4j.appender.RFAS.MaxFileSize=${hbase.security.log.maxfilesize}
log4j.appender.RFAS.MaxBackupIndex=${hbase.security.log.maxbackupindex}
log4j.appender.RFAS.layout=org.apache.log4j.PatternLayout
log4j.appender.RFAS.layout.ConversionPattern=%d{ISO8601} %p %c: %m%n
log4j.category.SecurityLogger=${hbase.security.logger}
log4j.additivity.SecurityLogger=false
#log4j.logger.SecurityLogger.org.apache.hadoop.hbase.security.access.AccessController=TRACE
#log4j.logger.SecurityLogger.org.apache.hadoop.hbase.security.visibility.VisibilityController=TRACE
#
# Null Appender
#
log4j.appender.NullAppender=org.apache.log4j.varia.NullAppender
#
# console
# Add "console" to rootlogger above if you want to use this
#
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.target=System.err
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{ISO8601} %-5p [%t] %c{2}: %m%n
# Custom Logging levels
log4j.logger.org.apache.zookeeper=INFO
#log4j.logger.org.apache.hadoop.fs.FSNamesystem=DEBUG
log4j.logger.org.apache.hadoop.hbase=DEBUG
# Make these two classes INFO-level. Make them DEBUG to see more zk debug.
log4j.logger.org.apache.hadoop.hbase.zookeeper.ZKUtil=INFO
log4j.logger.org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher=INFO
#log4j.logger.org.apache.hadoop.dfs=DEBUG
# Set this class to log INFO only otherwise its OTT
# Enable this to get detailed connection error/retry logging.
# log4j.logger.org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation=TRACE
# Uncomment this line to enable tracing on _every_ RPC call (this can be a lot of output)
#log4j.logger.org.apache.hadoop.ipc.HBaseServer.trace=DEBUG
# Uncomment the below if you want to remove logging of client region caching'
# and scan of .META. messages
# log4j.logger.org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation=INFO
# log4j.logger.org.apache.hadoop.hbase.client.MetaScanner=INFO
我检查了所有节点上的hbase日志文件，但没有调试字符串。
任何建议都将受到赞赏。