hive数据库查看参数/hive查看当前环境配置

傷城~ 2024-02-05 11:35 84阅读 0赞

#### 文章目录 ####

*  一、hive查看当前环境配置命令

在一次hive数据库执行命令 `set ngmr.exec.mode=cluster`时，想看一下 `ngmr.exec.mode`参数原先的值是什么，所以写一下本篇博文，讲一下怎么查看hive中的参数。

## 一、hive查看当前环境配置命令 ##

*  set ：可以查看所有参数
 *  set -v ：可得到所有环境变量。如果没有-v参数，只显示与hadoop不同的配置。
 *  set 具体参数： 返回具体参数对应的值

**案例一：set 具体参数**

# 返回mapreduce.map.memory.mb参数的值
    set mapreduce.map.memory.mb;

![在这里插入图片描述][e853fdbccb064529bfee5880880e2efc.png]  
**案例二：set 查询所有变量**

set;

**案例三：set -v查询所有环境变量**

hive> set -v;
    silent=off
    fs.s3n.impl=org.apache.hadoop.fs.s3native.NativeS3FileSystem
    datanucleus.validateColumns=false
    mapred.task.cache.levels=2
    hadoop.tmp.dir=/home/hexianghui/datahadoop
    hadoop.native.lib=true
    map.sort.class=org.apache.hadoop.util.QuickSort
    ipc.client.idlethreshold=4000
    mapred.system.dir=${hadoop.tmp.dir}/mapred/system
    hive.script.serde=org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe
    mapred.job.tracker.persist.jobstatus.hours=0
    io.skip.checksum.errors=false
    fs.default.name=hdfs://192.168.0.4:9000
    mapred.child.tmp=./tmp
    datanucleus.cache.level2=false
    mapred.skip.reduce.max.skip.groups=0
    mapred.jobtracker.instrumentation=org.apache.hadoop.mapred.JobTrackerMetricsInst
    mapred.tasktracker.dns.nameserver=default
    io.sort.factor=10
    hive.metastore.rawstore.impl=org.apache.hadoop.hive.metastore.ObjectStore
    hive.metastore.local=true
    mapred.task.timeout=600000
    mapred.max.tracker.failures=4
    hadoop.rpc.socket.factory.class.default=org.apache.hadoop.net.StandardSocketFactory
    fs.hdfs.impl=org.apache.hadoop.hdfs.DistributedFileSystem
    mapred.queue.default.acl-administer-jobs=*
    mapred.queue.default.acl-submit-job=*
    mapred.skip.map.auto.incr.proc.count=true
    io.mapfile.bloom.size=1048576
    tasktracker.http.threads=40
    mapred.job.shuffle.merge.percent=0.66
    fs.ftp.impl=org.apache.hadoop.fs.ftp.FTPFileSystem
    io.bytes.per.checksum=512
    mapred.output.compress=false
    hive.test.mode.prefix=test_
    hive.test.mode=false
    hive.exec.compress.intermediate=false
    topology.node.switch.mapping.impl=org.apache.hadoop.net.ScriptBasedMapping
    datanucleus.cache.level2.type=SOFT
    mapred.reduce.slowstart.completed.maps=0.05
    mapred.reduce.max.attempts=4
    fs.ramfs.impl=org.apache.hadoop.fs.InMemoryFileSystem
    javax.jdo.option.ConnectionUserName=APP
    mapred.skip.map.max.skip.records=0
    hive.merge.mapfiles=true
    hive.merge.size.smallfiles.avgsize=16000000
    hive.test.mode.samplefreq=32
    hive.optimize.skewjoin=false
    mapred.job.tracker.persist.jobstatus.dir=/jobtracker/jobsInfo
    fs.s3.buffer.dir=${hadoop.tmp.dir}/s3
    hive.map.aggr.hash.min.reduction=0.5
    job.end.retry.attempts=0
    fs.file.impl=org.apache.hadoop.fs.LocalFileSystem
    mapred.local.dir.minspacestart=0
    hive.exec.compress.output=false
    mapred.output.compression.type=RECORD
    hive.script.recordreader=org.apache.hadoop.hive.ql.exec.TextRecordReader
    topology.script.number.args=100
    io.mapfile.bloom.error.rate=0.005
    hive.exec.parallel.thread.number=8
    mapred.max.tracker.blacklists=4
    mapred.task.profile.maps=0-2
    mapred.userlog.retain.hours=24
    datanucleus.storeManagerType=rdbms
    mapred.job.tracker.persist.jobstatus.active=false
    hive.script.operator.id.env.var=HIVE_SCRIPT_OPERATOR_ID
    hadoop.security.authorization=false
    local.cache.size=10737418240
    mapred.min.split.size=0
    mapred.map.tasks=2
    mapred.child.java.opts=-Xmx200m
    hive.skewjoin.mapjoin.min.split=33554432
    hive.metastore.warehouse.dir=/user/hive/warehouse
    mapred.job.queue.name=default
    hive.mapjoin.bucket.cache.size=100
    datanucleus.transactionIsolation=read-committed
    ipc.server.listen.queue.size=128
    mapred.inmem.merge.threshold=1000
    job.end.retry.interval=30000
    mapred.skip.attempts.to.start.skipping=2
    fs.checkpoint.dir=${hadoop.tmp.dir}/dfs/namesecondary
    mapred.reduce.tasks=-1
    mapred.merge.recordsBeforeProgress=10000
    mapred.userlog.limit.kb=0
    hive.skewjoin.key=100000
    javax.jdo.option.ConnectionDriverName=org.apache.derby.jdbc.EmbeddedDriver
    webinterface.private.actions=false
    mapred.job.shuffle.input.buffer.percent=0.70
    io.sort.spill.percent=0.80
    hive.udtf.auto.progress=false
    hive.session.id=hexianghui_201002232043
    mapred.map.tasks.speculative.execution=true
    hadoop.util.hash.type=murmur
    hive.exec.script.maxerrsize=100000
    hive.optimize.groupby=true
    mapred.map.max.attempts=4
    hive.default.fileformat=TextFile
    hive.exec.scratchdir=/tmp/hive-${user.name}
    mapred.job.tracker.handler.count=10
    hive.script.recordwriter=org.apache.hadoop.hive.ql.exec.TextRecordWriter
    hive.join.emit.interval=1000
    datanucleus.validateConstraints=false
    mapred.tasktracker.expiry.interval=600000
    mapred.jobtracker.maxtasks.per.job=-1
    mapred.jobtracker.job.history.block.size=3145728
    keep.failed.task.files=false
    ipc.client.tcpnodelay=false
    mapred.task.profile.reduces=0-2
    mapred.output.compression.codec=org.apache.hadoop.io.compress.DefaultCodec
    io.map.index.skip=0
    ipc.server.tcpnodelay=false
    hive.join.cache.size=25000
    datanucleus.autoStartMechanismMode=checked
    hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat
    hadoop.logfile.size=10000000
    mapred.reduce.tasks.speculative.execution=true
    hive.skewjoin.mapjoin.map.tasks=10000
    hive.hwi.listen.port=9999
    fs.checkpoint.period=3600
    mapred.job.reuse.jvm.num.tasks=1
    mapred.jobtracker.completeuserjobs.maximum=100
    hive.groupby.mapaggr.checkinterval=100000
    fs.s3.maxRetries=4
    javax.jdo.option.ConnectionURL=jdbc:derby:;databaseName=metastore_db;create=true
    hive.mapred.mode=nonstrict
    hive.groupby.skewindata=false
    hive.exec.parallel=false
    mapred.local.dir=${hadoop.tmp.dir}/mapred/local
    fs.hftp.impl=org.apache.hadoop.hdfs.HftpFileSystem
    fs.s3.sleepTimeSeconds=10
    fs.trash.interval=0
    mapred.submit.replication=10
    hive.merge.size.per.task=256000000
    fs.har.impl=org.apache.hadoop.fs.HarFileSystem
    mapred.map.output.compression.codec=org.apache.hadoop.io.compress.DefaultCodec
    hive.exec.reducers.max=999
    mapred.tasktracker.dns.interface=default
    mapred.job.tracker=192.168.0.4:9001
    io.seqfile.sorter.recordlimit=1000000
    hive.optimize.ppd=true
    mapred.line.input.format.linespermap=1
    mapred.jobtracker.taskScheduler=org.apache.hadoop.mapred.JobQueueTaskScheduler
    mapred.tasktracker.instrumentation=org.apache.hadoop.mapred.TaskTrackerMetricsInst
    hive.mapjoin.cache.numrows=25000
    hive.merge.mapredfiles=false
    hive.metastore.connect.retries=5
    hive.fileformat.check=true
    mapred.tasktracker.procfsbasedprocesstree.sleeptime-before-sigkill=5000
    javax.jdo.option.DetachAllOnCommit=true
    mapred.local.dir.minspacekill=0
    hive.optimize.pruner=true
    javax.jdo.option.ConnectionPassword=mine
    hive.hwi.listen.host=0.0.0.0
    io.sort.record.percent=0.05
    hive.map.aggr.hash.percentmemory=0.5
    fs.kfs.impl=org.apache.hadoop.fs.kfs.KosmosFileSystem
    mapred.temp.dir=${hadoop.tmp.dir}/mapred/temp
    mapred.tasktracker.reduce.tasks.maximum=2
    javax.jdo.PersistenceManagerFactoryClass=org.datanucleus.jdo.JDOPersistenceManagerFactory
    hive.mapred.local.mem=0
    fs.checkpoint.edits.dir=${fs.checkpoint.dir}
    mapred.job.reduce.input.buffer.percent=0.0
    datanucleus.validateTables=false
    mapred.tasktracker.indexcache.mb=10
    hadoop.logfile.count=10
    mapred.skip.reduce.auto.incr.proc.count=true
    
    hive.script.auto.progress=false
    io.seqfile.compress.blocksize=1000000
    fs.s3.block.size=67108864
    mapred.tasktracker.taskmemorymanager.monitoring-interval=5000
    datanucleus.autoCreateSchema=true
    mapred.acls.enabled=false
    mapred.queue.names=default
    fs.hsftp.impl=org.apache.hadoop.hdfs.HsftpFileSystem
    hive.map.aggr=true
    hive.enforce.bucketing=false
    mapred.task.tracker.http.address=0.0.0.0:50060
    mapred.reduce.parallel.copies=5
    io.seqfile.lazydecompress=true
    hive.exec.script.allow.partial.consumption=false
    io.sort.mb=100
    ipc.client.connection.maxidletime=10000
    mapred.task.tracker.report.address=127.0.0.1:0
    mapred.compress.map.output=false
    hive.mapred.reduce.tasks.speculative.execution=true
    ipc.client.kill.max=10
    ipc.client.connect.max.retries=10
    hive.heartbeat.interval=1000
    fs.s3.impl=org.apache.hadoop.fs.s3.S3FileSystem
    hive.mapjoin.maxsize=100000
    mapred.job.tracker.http.address=0.0.0.0:50030
    io.file.buffer.size=4096
    mapred.jobtracker.restart.recover=false
    io.serializations=org.apache.hadoop.io.serializer.WritableSerialization
    hive.optimize.cp=true
    javax.jdo.option.NonTransactionalRead=true
    hive.exec.reducers.bytes.per.reducer=1000000000
    mapred.reduce.copy.backoff=300
    mapred.task.profile=false
    jobclient.output.filter=FAILED
    mapred.tasktracker.map.tasks.maximum=2
    io.compression.codecs=org.apache.hadoop.io.compress.DefaultCodec,org.apache.hadoop.io.compress.GzipCodec,org.apache.hadoop.io.compress.BZip2Codec
    fs.checkpoint.size=67108864

[e853fdbccb064529bfee5880880e2efc.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/02/05/94adadc94f2a482e9d796d165a771a89.png