Expert Hadoop® Administration

Index

| (pipe symbol)

piping data into HDFS files, 360

reviewing files, 359

- (minus sign), in dfs subcommands, 245

* (asterisk), wildcard when copying multiple files, 358

256-byte encryption, enabling/disabling, 490

A

Acceptance filters, 496

“Access denied for user root” message, 259

Accounting. See Auditing.

Accumulators, 702–703

acl_file parameter, 490

ACLs (access control lists). See also Authorization.

authorization, 507–509

blocking, 512

configuring service level authorization, 510–511

permissions, 257, 507–509

specifying for UPNs, 490

Action nodes, Oozie workflows

configuring, 449–454

description, 438, 448

fs actions, 454

for Hive jobs, 451–452

for MapReduce jobs, 450–451

for Pig, 452–453

Shell actions, 453

types of, 449–450. See also ...