) 所以，市面上就有了一堆大同小異的 Hadoop Distribution： Cloudera 有 Cloudera Distribution for Hadoop (CDH) Oracle 有 Oracle Big Data Appliance Intel 以前有 Intel Distribution for Hadoop (IDH)，現在是直接與 Cloudera 合作 Hortonworks Cloudera Distribution for Hadoop 2014 年獲得 900M 的資金挹注，其中 740M 來自 Intel。 41 / 74 Oracle Big Data Appliance Oracle Big Data Platform 的底層是 Cloudera Distribution for Hadoop (CDH)。 42 / 74 Hortonworks 54 / 74 超級(女)英雄們也是有分派系的！ Hadoop 小圈圈 55 / 74 Cloudera 派： Intel (金主) DataBricks (Spark 平台) IBM Oracle MapR ... Hortonworks 派： Microsoft (生命共同體) ... 56 / 74 意見分歧？殊途同歸？ Hive vs. Impala Did Cloudera

會設定+strict-align，防止編譯器產生未對齊的存取，因此在本例中應該不會出錯，但這 不一定是一般情況。 – 如果是在 VM 中執行，可能會導致快取一致性問題。問題在於 VM 會在快取已停用時直接存 取記憶體，而主機具有相同記憶體的可快取別名。即使主機未明確存取記憶體，推測存取行為 仍可能導致快取填補，而當快取遭到清理或 VM 啟用快取時，存取之間的變更就會遺失 (快取 是以實體位址做為索引鍵，並非使用 VA 或 IPA)。 aarch64-unknown- none，這會設定+strict-align，防止編譯器產生未對齊的存取，因此應該不會出錯，但這 不一定是一般情況。 275 – 如果是在 VM 中執行，可能會導致快取一致性問題。問題在於 VM 會在快取已停用時直接存 取記憶體，而主機具有相同記憶體的可快取別名。即使主機未明確存取記憶體，推測存取行為 仍可能導致快取填補，而存取之間的變更就會遺失。同樣地，這在本例中不成問題 activate the page table. idmap.activate(); • 目前僅支援 EL1，但應該很容易新增其他例外狀況層級的支援功能。 • 這是用於 Android 中的受保護 VM 韌體。 • 執行這個範例並不容易，因為需要在實際硬體上執行，或是使用 QEMU。 54.3 buddy_system_allocator buddy_system_allocator 是實作基本夥伴系統分配器的第三方

行階段，也是上游Kubernetes 的預設選項。Canonical Kubernetes及Rancher均支援Containerd。 Kata Containers以安全性為重，將容器置於輕量級VM之中，在容器之間提供更深 度的隔離。Canonical Kubernetes及Red Hat Openshift均支援Kata Containers。 4 CRI-O是Red Hat專為Kube

Sys.isjsvm – Function. Sys.isjsvm([os]) Predicate for testing if Julia is running in a JavaScript VM (JSVM), including e.g. a WebAssembly JavaScript embedding in a web browser. Julia 1.2 This function memory mappings that on Linux can exceed the limit of memory mappings (mmap) set in the file /proc/sys/vm/max_map_count, resulting in an error like JIT session error: Cannot allocate memory Should this happen system administrator to increase the limit of memory mappings for example with the command sysctl -w vm.max_map_count=262144 103.10 Binary distributions These notes are for those wishing to compile a binary

Sys.isjsvm – Function. Sys.isjsvm([os]) Predicate for testing if Julia is running in a JavaScript VM (JSVM), including e.g. a WebAssembly JavaScript embedding in a web browser. Julia 1.2 This function memory mappings that on Linux can exceed the limit of memory mappings (mmap) set in the file /proc/sys/vm/max_map_count, resulting in an error like JIT session error: Cannot allocate memory Should this happen system administrator to increase the limit of memory mappings for example with the command sysctl -w vm.max_map_count=262144 103.10 Binary distributions These notes are for those wishing to compile a binary

Sys.isjsvm – Function. Sys.isjsvm([os]) Predicate for testing if Julia is running in a JavaScript VM (JSVM), including e.g. a WebAssembly JavaScript embedding in a web browser. Julia 1.2 This function moment, this set needs to be consistent between both the Stock GC and MMTk (in the function jl_gc_scan_vm_specific_roots). (3) Changing how objects are scanned. MMTk uses the same strategy to find references memory mappings that on Linux can exceed the limit of memory mappings (mmap) set in the file /proc/sys/vm/max_map_count, resulting in an error like JIT session error: Cannot allocate memory Should this happen

Sys.isjsvm – Function. Sys.isjsvm([os]) Predicate for testing if Julia is running in a JavaScript VM (JSVM), including e.g. a WebAssembly JavaScript embedding in a web browser. Julia 1.2 This function memory mappings that on Linux can exceed the limit of memory mappings (mmap) set in the file /proc/sys/vm/max_map_count, resulting in an error like JIT session error: Cannot allocate memory Should this happen the limit of memory mappings for example with the commandCHAPTER 107. BUILDING JULIA 1977 sysctl -w vm.max_map_count=262144 107.7 Binary distributions These notes are for those wishing to compile a binary

Sys.isjsvm – Function. Sys.isjsvm([os]) Predicate for testing if Julia is running in a JavaScript VM (JSVM), including e.g. a WebAssembly JavaScript embedding in a web browser. Julia 1.2 This function memory mappings that on Linux can exceed the limit of memory mappings (mmap) set in the file /proc/sys/vm/max_map_count, resulting in an error like JIT session error: Cannot allocate memory Should this happen the limit of memory mappings for example with the commandCHAPTER 107. BUILDING JULIA 1977 sysctl -w vm.max_map_count=262144 107.7 Binary distributions These notes are for those wishing to compile a binary

Sys.isjsvm – Function. Sys.isjsvm([os]) Predicate for testing if Julia is running in a JavaScript VM (JSVM), including e.g. a WebAssembly JavaScript embedding in a web browser. Julia 1.2 This function memory mappings that on Linux can exceed the limit of memory mappings (mmap) set in the file /proc/sys/vm/max_map_count, resulting in an error like JIT session error: Cannot allocate memory Should this happen the limit of memory mappings for example with the commandCHAPTER 107. BUILDING JULIA 1977 sysctl -w vm.max_map_count=262144 107.7 Binary distributions These notes are for those wishing to compile a binary

CHAPTER 43. ESSENTIALS 696 Sys.isjsvm([os]) Predicate for testing if Julia is running in a JavaScript VM (JSVM), including e.g. a WebAssembly JavaScript embedding in a web browser. Julia 1.2 This function memory mappings that on Linux can exceed the limit of memory mappings (mmap) set in the file /proc/sys/vm/max_map_count, resulting in an error like JIT session error: Cannot allocate memory Should this happen the limit of memory mappings for example with the commandCHAPTER 108. BUILDING JULIA 2026 sysctl -w vm.max_map_count=262144 108.7 RISC-V (Linux) Julia has experimental support for 64-bit RISC-V (RV64)