MapR 5.1 is at End of Life (EOL) and no longer supported. Please see the latest documentation. This documentation is not being updated.

5.1 Reference
This section provides information about development content including MapR-FS and MapReduce development topics and reference content.
- Development Guide
- Reference Guide
  - MapR Control System
  - Hadoop Commands
  - HBase Shell for MapR-DB
    You can manage MapR-DB tables using HBase shell commands and additional HBase shell commands included in the MapR distribution of Hadoop.
  - YARN commands
  - maprcli and REST API Syntax
  - Alarms Reference
  - Utilities
  - Default MapR Configurations
  - Configuration Files
  - MapR Environment
  - MapR Parameters
  - Best Practices
  - Language Support for MapR-DB Tables
  - Glossary
    This section contains defintions for commonly used terms in MapR Converged Data Platform environments.
  - Source Code for MapR Software
- Glossary
  This section contains defintions for commonly used terms in MapR Converged Data Platform environments.

Table Replication Asynchronous

Logged As

VOLUME_ALARM_TABLE_REPL_ASYNC

Meaning

These alarms display the pathnames of the source tables that are involved.

If MapR-DB is replicating synchronously and it judges the latency of the replication stream to be too high, it will switch to asynchronous replication temporarily.

After a new gateway is created, an existing gateway is restarted, or after latency is sufficiently reduced, MapR-DB switches the mode of replication back to synchronous.

You can also check whether a source table is being replicated synchronously or asynchronously by running the command maprcli table replica list .