http://caoyaojun1988-163-com.iteye.com/blog/1969853 JDK7中符号引用(Symbols)转移到了native heap;字面量(interned strings)转移到了Java heap;类的静态变量(class statics)转移到了Java heap。但是永久在还存在于JDK7中,直到JDK8,永久代才完全消失,转而使用元空间。而元空间是直接存在内存中,不在java虚拟机...
接下来,我们绘制关系图以展示 Datanode 与其他组件之间的关联。 DatanodestringidstringstatusintheapSizeHDFSstringnamestringversionuses 结尾 通过以上步骤,您可以成功调整 Datanode 的 Java Heap,提高系统的性能。这段过程不仅能够帮助您理解 Datanode 的配置原理,还能提高您在大数据环境中的专业知识。调整 Java Heap 是...
Namerest_query_default_row_size_limit DescriptionThe maximum number of rows in a result set that can be returned by a query Typeint32 Default10000 EffectiveAfter restarting system cache_expire Namecache_expire DescriptionExpiration time for caching customer login information ...
yarn.nodemanager.resource.memory-mb - 12GB yarn.scheduler.maximum-allocation-mb - 16GB mapreduce.map.memory.mb - 4GB mapreduce.reduce.memory.mb - 4GB mapreduce.map.java.opts.max.heap - 3GB mapreduce.reduce.java.opts.max.heap - 3GB namenode_java_heapsize - 6GB secondarynamenode_java_heap...
If anyone stumbles upon this error - the solution is increasing the maximum heap size of the datanode This - 205044
_OPTS="-XX:MaxDirectMemorySize=128m ${HADOOP_JVM_SECURITY_OPTS} ${HADOOP_JVM_GC_OPT}"export HBASE_HEAPSIZE="2048"export HBASE_MANAGES_ZK=false#export YARN_RESOURCEMANAGER_HEAPSIZE=#export YARN_NODEMANAGER_HEAPSIZE=#export YARN_PROXYSERVER_HEAPSIZE=#export HADOOP_JOB_HISTORYSERVER_HEAPSIZE=...
DTS_E_MSMQTASK_DATA_FILE_SIZE_ERROR 字段 DTS_E_MSMQTASK_DATAFILE_ALREADY_EXISTS 字段 DTS_E_MSMQTASK_FIPS1402COMPLIANCE 字段 DTS_E_MSMQTASK_INITIALIZATION_WITH_WRONG_XML_ELEMENT 字段 DTS_E_MSMQTASK_INVALID_ENCRYPTION_ALGO_WRAPPER 字段 DTS_E_MSMQTASK_INVALID_MESSAGE_TYPE 字段 DTS_E_MSMQTASK_IN...
DTS_W_MAXIMUMERRORCOUNTREACHED 欄位 DTS_W_MSMQTASK_USE_WEAK_ENCRYPTION 欄位 DTS_W_NOLINEAGEVALIDATION 欄位 DTS_W_NOMATCHOUTPUTGETSNOROWS 欄位 DTS_W_NOPARENTVARIABLES 欄位 DTS_W_NOPIPELINEDATATYPEMAPPINGAVAILABLE 欄位 DTS_W_NORECORDSFOUNDINTABLE 欄位 DTS_W_NOREDIRECTWITHATTACHEDERROROUTPUTS 欄...
datanode maximum java heap size”在hadoop-env.sh（同样是ambari中的某个字段，只需尝试搜索heap），...
datanode maximum java heap size”在hadoop-env.sh（同样是ambari中的某个字段，只需尝试搜索heap），...