Whether the shared cache is enabled yarn.sharedcache.enabled false The root directory for the shared cache yarn.sharedcache.root-dir /sharedcache The level of nested directories before getting to the checksum directories. It must be non-negative. yarn.sharedcache.nested-level 3 The implementation to be used for the SCM store yarn.sharedcache.store.class org.apache.hadoop.yarn.server.sharedcachemanager.store.InMemorySCMStore The implementation to be used for the SCM app-checker yarn.sharedcache.app-checker.class org.apache.hadoop.yarn.server.sharedcachemanager.RemoteAppChecker A resource in the in-memory store is considered stale if the time since the last reference exceeds the staleness period. This value is specified in minutes. yarn.sharedcache.store.in-memory.staleness-period-mins 10080 Initial delay before the in-memory store runs its first check to remove dead initial applications. Specified in minutes. yarn.sharedcache.store.in-memory.initial-delay-mins 10 The frequency at which the in-memory store checks to remove dead initial applications. Specified in minutes. yarn.sharedcache.store.in-memory.check-period-mins 720 The address of the admin interface in the SCM (shared cache manager) yarn.sharedcache.admin.address 0.0.0.0:8047 The number of threads used to handle SCM admin interface (1 by default) yarn.sharedcache.admin.thread-count 1 The address of the web application in the SCM (shared cache manager) yarn.sharedcache.webapp.address 0.0.0.0:8788 The frequency at which a cleaner task runs. Specified in minutes. yarn.sharedcache.cleaner.period-mins 1440 Initial delay before the first cleaner task is scheduled. Specified in minutes. yarn.sharedcache.cleaner.initial-delay-mins 10 The time to sleep between processing each shared cache resource. Specified in milliseconds. yarn.sharedcache.cleaner.resource-sleep-ms 0 The address of the node manager interface in the SCM (shared cache manager) yarn.sharedcache.uploader.server.address 0.0.0.0:8046 The number of threads used to handle shared cache manager requests from the node manager (50 by default) yarn.sharedcache.uploader.server.thread-count 50 The address of the client interface in the SCM (shared cache manager) yarn.sharedcache.client-server.address 0.0.0.0:8045 The number of threads used to handle shared cache manager requests from clients (50 by default) yarn.sharedcache.client-server.thread-count 50 The algorithm used to compute checksums of files (SHA-256 by default) yarn.sharedcache.checksum.algo.impl org.apache.hadoop.yarn.sharedcache.ChecksumSHA256Impl The replication factor for the node manager uploader for the shared cache (10 by default) yarn.sharedcache.nm.uploader.replication.factor 10 The number of threads used to upload files from a node manager instance (20 by default) yarn.sharedcache.nm.uploader.thread-count 20