Avid Media Media Index 2.6 Configuration Guide

Type
Configuration Guide
Avid Media | Index
Configuration Guide
Version 2.6
2
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Avid Media | Index Configuration Guide • Created March 31, 2016 • This document is distributed by Avid in online
(electronic) form only, and is not available for purchase in printed form.
Contents
Using This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Symbols and Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
If You Need Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Avid Training Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 1 Media | Index Configuration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Prerequisites for Media | Index Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Checklist for Configuring Media | Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 2 Upgrading Media | Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Upgrading Media Index from v2.0.x or v2.1.x . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Upgrading Media Index from v2.2.x to v2.3 or Later. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Reactivating the Cluster After Upgrading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Media | Index Backup Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Chapter 3 Configuring Media | Index for a Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Preparing for Media | Index Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Shard Count and Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Configuring Media | Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Validating the Media | Index Configuration on a Cluster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Next Steps for Media | Index Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 4 Setting Up Multi-Zone Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Setting the Zone Bindings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Validating the Elasticsearch Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Removing Zones from a Multi-Zone Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 5 Configuring Media | Index for a Single Node. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Preparing for Media | Index Configuration for a Single Node . . . . . . . . . . . . . . . . . . . . . . . . . 31
Configuring Media | Index for a Single Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Validating the Media | Index Configuration on a Single Node. . . . . . . . . . . . . . . . . . . . . . . . . 35
Next Steps for Media | Index Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Chapter 6 Production Engine Bus Connector Installation . . . . . . . . . . . . . . . . . . . . . . . . . 36
Creating a PEBCo Instance on a Single Node . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Creating a PEBCo Instance in a Cluster Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Configuring the ICS Bus Service in Interplay Administrator . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Configuring and Using the Production Engine Bus Connector Service . . . . . . . . . . . . . . . . . 40
6
Chapter 7 Installing and Configuring Production Services for
MediaCentral Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Understanding Production Services for MediaCentral Delivery . . . . . . . . . . . . . . . . . . . . . . . 44
Check List for Installing and Configuring Automation and Consolidate Services . . . . . . . . . . 45
Prerequisites for Installing and Configuring Automation and Consolidate Services . . . . . . . . 46
Installing the Automation and Consolidate Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Registering the Automation and Consolidate Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Registering a Provider with the Production Services Engine . . . . . . . . . . . . . . . . . . . . . . . . . 49
Creating a Consolidate Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Chapter 8 Setting Up Interplay | MAM Sync Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
About Interplay | MAM Sync Service Administrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Opening Sync Service Administrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Understanding the Sync Service Administrator Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Quitting Sync Service Administrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Chapter 9 Setting Up iNEWS for Media | Index Integration . . . . . . . . . . . . . . . . . . . . . . . . . 67
Manually Installing the log4cpp File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Editing iNEWS Site Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
(Optional) Enabling Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Assigning the Media | Index Attribute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Activating the Mediaindex Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Chapter A Using the Media | Index Command Line Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Updating Localization Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Displaying Information about Initialized Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Changing Replica Counts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Changing the Index Refresh Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Appendix B Media | Index Custom Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Using the Media | Index System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Setting Elasticsearch Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Configuring the PEBCo for Custom Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Changing the Default Search Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Changing the Maximum Number of Markers Returned in a Search . . . . . . . . . . . . . . . . . . . . 84
Using the Media | Index Restart Command Line Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Restarting Media Index Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Scalability of Media | Index Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Adjusting Relevance for Search Results. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Disabling Search Suggestions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Configuring Search Criteria Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Restarting the Search and PEBCo Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Appendix C Updating Media | Index Property Schemas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Property Changes in Production and Schema Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Monitor the Re-index Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Using This Guide
This guide is intended for users of Avid MediaCentral Platform Services (MCS) with the
Media | Index feature. This guide describes the configuration procedures for Media Index, such as
configuring Media Index for cluster and single-node installations..
For information on installing MCS, see the MediaCentral Platform Services Installation and
Configuration Guide. For administrative information for MediaCentral | UX, see the Avid
MediaCentral | UX Administration Guide.
Symbols and Conventions
Avid documentation uses the following symbols and conventions:
Symbol or Convention Meaning or Action
n
A note provides important related information, reminders,
recommendations, and strong suggestions.
c
A caution means that a specific action you take could cause harm to
your computer or cause you to lose data.
w
A warning describes an action that could cause you physical harm.
Follow the guidelines in this document or on the unit itself when
handling electrical equipment.
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1 Media | Index Configuration Overview
This document describes the tasks required to configure a Media Index system.
Media Index comprises the following components:
Elasticsearch
®
service, which manages data storage and runs the search engine.
Elasticsearch tribe service, the federated client that enables multi-zone search functionality.
Data Import API, a bus-based service for metadata indexing, search, configuration, status,
permissions, and updates for Media Index.
Search API, a bus-based service that provides the search API
Media Index Configuration API, a bus-based service that provides the API for the Media Index
configuration
Media Index Status API, a bus-based service that provides the API for the Media Index
Media Index Permissions API, a bus-based service that provides per asset permissions for the
search service
Media Index Feed API, a bus-based service that provides an updated assets feed for external
services
Media Index Thesaurus API, a bus-based service that provides API for importing structured
metadata (dictionaries)
Elasticsearch is an open source, distributed, real-time search and analytics engine. Elasticsearch
stores information about assets and makes it accessible across multiple sites.
Prerequisites for Media | Index Configuration
Before you configure Media Index, you need to install and configure the following MediaCentral
components:
MediaCentral Platform Services (MCS) — Media Index is configured after you have installed
and set up your MCS system, either for a single node or for a cluster configuration. For more
information about installing and configuring MCS, see the MediaCentral Platform Services
Installation and Configuration Guide.
Multi-zone components — If you use MCS in a multi-zone environment, you must first
configure the multi-zone components. For information on installing MCS and configuring a
multi-zone environment, see the MediaCentral Platform Services Installation and Configuration
Guide.
Media Index is installed with MediaCentral Platform Services (MCS) by default, but the Media Index
services are not started. You can install Media Index in both a single- and a multi-zone configuration.
Each zone used for a Media Index installation includes a full MCS configuration with an Interplay
Production database. The zone can include a single node or a cluster setup. Multi-zone configurations
federate separate nodes, which can be separated geographically — for example, one node could be
located in Toronto and another in Munich.
Checklist for Configuring Media | Index
10
All required Media Index components install when you install MCS. However, the services needed to
run Media Index by default are not set to start automatically since you must configure them before
you can use Media Index. Once you complete the configuration of the services, you can enable them
to start automatically.
Checklist for Configuring Media | Index
The following table provides a checklist of steps for configuring Media Index components. The
checklist also provides references where to find more information about each step.
Task Section Reference
b
Check the prerequisites. “Prerequisites for Media | Index Configuration”
on page 9.
b
If you are upgrading Media Index, reset your
existing Media Index configuration to prepare for
the upgrade installation. If you have a multi-zone
configuration, you need to upgrade any slave zones
before your master zone. This is important for
upgrading Media Index because as soon as you
upgrade one of your zones, indexed search no
longer works reliably in the old zones.
“Upgrading Media | Index” on page 11.
b
Configure the Media Index and the Elasticsearch
service.
“Configuring Media | Index for a Cluster” on
page 17 and “Configuring Media | Index for a
Single Node” on page 31.
b
Validate your configuration. “Validating the Media | Index Configuration on a
Single Node” on page 35 and “Validating the
Media | Index Configuration on a Cluster” on
page 22.
b
If you have a multi-zone setup, configure
Media Index for multiple zones.
“Setting Up Multi-Zone Search” on page 25.
b
Create and configure the Production Engine Bus
Connector.
“Production Engine Bus Connector Installation”
on page 36.
b
Install and configure the Media Services Engine
and the three Interplay Media Services needed for
delivering media and assets between Interplay
Production workgroups or MediaCentral zones.
“Installing and Configuring Production Services
for MediaCentral Delivery” on page 44.
b
Configure iNEWS for integration with Media
Index. This includes editing host and site files,
assigning the Media Index attribute to queues or
folders, and starting the ftsindex program.
“Setting Up iNEWS for Media | Index
Integration” on page 67.
b
Configure Interplay MAM for integration with
Media Index. This includes using the Sync Service
Administrator to configure the SyncCentralIndex
Service.
“Setting Up Interplay | MAM Sync Service” on
page 57.
For information on installing and configuring
Interplay MAM, see the Interplay | MAM
Installation Manual and the Interplay | MAM Sync
Service Administrator User’s Guide.
2 Upgrading Media | Index
The procedures for upgrading your Media Index configuration depend on which version of
MediaCentral Platform Services (MCS) you want to upgrade. If you upgrade from a version earlier
than MCS v2.3 — for example, if you upgrade from v2.0 to v2.1 or from v2.1 to v2.3 — you need to
reset your Media Index before the upgrade can start. If you upgrade from v2.2.x to v2.3, you only
need to migrate any index that you use in your Media Index configuration.
For upgrading earlier versions, the procedures for resetting Media Index must be completed prior to
upgrading your MCS environment. For more information on upgrading MCS, see the Avid
MediaCentral Platform Services Upgrading Guide.
Upgrading Media Index from v2.0.x or v2.1.x
Before upgrading your Media Index deployment, you must reset Media Index. In a multi-zone
environment, you must reset the Media Index in each zone. During the Media Index reset procedure,
all indexed data is deleted. After upgrade and reconfiguration, you must use the Production Engine
Bus Connector (PEBCo) service to resync and restore the Media Index database. For information on
using PEBCo, see “Production Engine Bus Connector Installation” on page 36.
If you are upgrading a multi-zone configuration, you need to upgrade any slave zones before your
master zone. When you upgrade a zone, it cannot fully access the database in older zones. The zone
can read from the user database so you can still log in as a user in the older configuration, but access
to the database remains in read-only mode so that you cannot create new users in the new zone until
you complete your upgrade.
In multi-zone configurations, you also must edit the ElasticSearch tribe configuration file to remove
information about the zones that you are upgrading. For example, in a two-zone configuration where
you start by upgrading the Zone1, you must remove the information that exposes the zone’s tribe
node to Zone2, and you must remove the Zone2 configuration that exposes the node to Zone1. If
there are other zones that you are not upgrading, you still need to edit the configuration file.
However, any zones remaining at the older version can continue to have configuration information
that exposes the zone to other old zones.
To reset Media Index to prepare for an upgrade:
1. On each node in your configuration, find the PEBCo instance by typing following command:
/opt/avid/bin/pam-agent-ctrl list
The server returns the name of your PEBCo instance.
2. Stop the PEBCo service by typing the following command:
/opt/avid/bin/pam-agent-ctrl stop <instance>
Upgrading Media Index from v2.0.x or v2.1.x
12
3. On the server hosting a zone within your configuration, list the information about systems within
all configured Elasticsearch clusters by typing the following command:
/opt/avid/bin/avid-acs-elastic-index-setup -m info
The terminal window displays the system information for your Media Index configuration.
The following is a sample output:
Systems found: 1
*************************
System id : BC2F27F5-DBC5-4611-869A-F7A43690EE57
System type : interplay
System display name : IP-VM-WG3
Number of assets : 18880
*************************
4. Type the following command for each system you want to delete from the index:
/opt/avid/bin/avid-acs-elastic-index-setup -m deleteSystem --systemId
<id_of_the_system>
To remove more systems from the index, type this command for each system.
5. Type the following command to remove the System Data index:
/opt/avid/bin/avid-acs-elastic-index-setup -m removeSystemData
6. Stop the search API by typing the following commands:
t For single-node installations:
service elasticsearch stop
service elasticsearch-tribe stop
service avid-acs-search stop
service avid-acs-search-import stop
service avid-acs-media-index-status-provider stop
service avid-acs-media-index-permission stop
service avid-acs-media-index-feed stop
t For cluster installations:
service elasticsearch stop
service elasticsearch-tribe stop
crm resource stop AvidSearchEverywhere
crm resource stop AvidSearchImport
service avid-acs-media-index-status-provider stop
service avid-acs-media-index-permission stop
service avid-acs-media-index-feed stop
To configure the Elasticsearch tribe configuration file before upgrading your multi-zone setup:
1. On each node that you want to upgrade, navigate to the directory containing the Elasticsearch
tribe configuration file:
cd /etc/elasticsearch-tribe
Upgrading Media Index from v2.0.x or v2.1.x
13
2. Using the Linux text editor, vi, open the elasticsearch.yml configuration file for editing:
vi elasticsearch.yml
3. In the configuration file, delete the zone bindings information that expose that node to other
nodes in the configuration. For example, if you have a two-zone setup — with Zone1 and
Zone2 — and you want to upgrade Zone2 first, delete the sections of the configuration file
highlighted below:
4. Press the Escape key to return to command mode, then type
:wq
and press Return to write and
quit the text editor.
5. Restart Elasticsearch tribe service by typing the following command:
service elasticsearch-tribe restart
Validating the Media Index Changes
You can change the number of replicas for all indexes, for indexes at the specified alias, or for a
specific index.
To validate your changes:
1. Open a browser and navigate to http://<server_name>:9200/_plugin/head, where sever_name is
the hostname for the server in one zone in your configuration — for example, the local zone.
The Elasticsearch head plug-in Web page opens in your browser.
Upgrading Media Index from v2.2.x to v2.3 or Later
14
2. Check to make sure the system_data index and index information are not listed.
When Media Index is reset for your upgrade process, you can install the latest version of Media
Index. For more information, see one of the following topics:
- For installing Media Index in a cluster configuration, see “Configuring Media | Index for a
Cluster” on page 17.
- For installing Media Index in a single-node configuration, see “Configuring Media | Index
for a Single Node” on page 31.
Upgrading Media Index from v2.2.x to v2.3 or Later
Before you upgrade your MCS environment to v2.3 or later, you need to ensure that there is no active
schema migration currently affecting Media Index. When you change a field set of the system
(Interplay Production, iNEWS, or Interplay Archive) and the changes propagate to Media Index, any
existing data is automatically migrated to reflect the changes. For large indexes, schema migration
can take a while. To avoid an inconsistent Media Index state, you need to make sure that there is no
schema migration actively affecting your indexes.
Once any current migration completes, you can continue with the MCS upgrade procedures. For
information on upgrading MCS, see the Avid MediaCentral Platform Services Upgrading Guide.
When you complete the MCS upgrade, you must migrate your indexes so that all new changes take
effect. Media Index continues to function during migration, with the exception for marker searches,
but it uses the older version of the index do that the migration does not require any downtime for your
MCS system. Once the migration completes, all functionality of the new index is available and the
old index is deleted.
If you upgrade Media Index from v2.4 or v2.5 to v2.6 with an Interplay MAM system, you must
re-sync your legal list using the MAM CentralSyncAgent. Use the CentralSyncAgent Re-sync Legal
List option to resend dictionary data to Media Index. For more information on using the Interplay
MAM Sync Service Administrator, see “Setting Up Interplay | MAM Sync Service” on page 57 and
the Interplay | MAM Sync Service Administrator User’s Guide.
To check the migration status prior to upgrading:
1. Sign in to MediaCentral UX as an administrator.
2. Select System Settings from the Layout selector.
The System Settings layout opens.
3. In the Settings pane select Media Index > Cluster State.
The Media Index Cluster State displays in the Details pane.
Reactivating the Cluster After Upgrading
15
4. Check the cluster state:
- If there is no active migration, all index labels appear in black.
- If the index has an active migration, its label appears in red with an indication of the
migration progress.
5. If there is active migration is in progress, wait for the process to finish before proceeding with
the MCS upgrade procedures.
To migrate the Media Index data after upgrading MCS:
t Type the following command to run media index migration tool:
/opt/avid/media-index/avid-acs-media-index-migration/avid-acs-media-
index-indices-migration
Media Index migration tool detects any existing indexes and automatically migrates the data. A
progress indicator displays during the migration.
Reactivating the Cluster After Upgrading
When you upgrade a cluster configuration, you must reset the cluster by running the
reactivate-cluster script on all nodes that have been upgraded before you set up Media Index in your
upgraded environment. This is due to the cluster still having the search resources configured after the
upgrade, and when the system tries to start the resources it fails because no system data has been
created.
If you have more than two nodes in a zone, you also must put the load-balancing node into standby
after running the cluster reactivation script and before beginning your Media Index configuration.
To reactivate the cluster and set the load balancing node into standby:
1. Log in to the master node of your configuration as the root user, and type the following
command:
/opt/avid/cluster/bin/reactivate-cluster
The cluster resources are reset.
2. To put the load-balancing nodes into standby mode, type the following command:
crm node standby <node_name>
Media | Index Backup Locations
16
Media | Index Backup Locations
When you re-install the MediaCentral Platform Services software, a backup of all data is created
before a complete re-installation using the USB key. However, indexes are not backed up by the
system backup script. This typically does not cause an issue since users generally do not need to back
up their indexes. For cluster configurations, the following notes also apply:
In a cluster, the index should be configured with data redundancy to avoid data loss.
In the case of a complete rebuild or of complete data loss within a cluster, Avid recommends that
you do not use a backup but re-index the data instead. This is because the backup will no longer
be in sync with what the index agents are expecting.
With the release of Elasticsearch v1.6, backups are only allowed on shared file locations, the backup
in Media Index v2.4 requires manual configuration of the backup locations. Setting this up correctly
requires a file server to be mounted on all machines. Customers should contact Avid Customer Care
or Avid Professional Services for instructions and support from Avid Engineering in setting this up.
3 Configuring Media | Index for a Cluster
When you set up the Elasticsearch service, you create a node that runs the service on a cluster. Every
node in an MCS cluster runs an Elasticsearch instance as well as an Elasticsearch-tribe instance. The
Elasticsearch instance runs the indexing process while the Elasticsearch-tribe instance is used for
searching. Tribe instances allow you to perform read operations against the nodes in multiple
clusters.
The MCS cluster and the Elasticsearch cluster do not share configuration details and use different
mechanisms for the clustering, even though the MCS cluster contains the Elasticsearch cluster.
You can configure a tribe instance in a federated way so that a tribe instance of one Elasticsearch
cluster can be connected to other Elasticsearch clusters (one or more Elasticsearch data instances).
For multi-zone configurations, this functionality is required where each zone (a single node or an
MCS cluster) runs its own Elasticsearch cluster. The tribe node configuration allows these two
clusters to be connected to each other so you can find assets from remote Elasticsearch clusters.
When you create an index, Elasticsearch creates a number of “shards” and “replicas,” each shard
containing indexed data and each replica containing a copy of that data. You use shards and replicas
to spread the search load and provide redundancy. The default number of shards is 1 and the default
number of replicas is 0, which is appropriate for single node configurations. For cluster
configurations, Avid recommends setting the replica count to one fewer than the number of cluster
nodes to accommodate fail-over safety and load balancing. For example, if your configuration
includes a cluster with five nodes, set the replica count to four. This allows for each node in the
cluster to contain a replica of all your indexed data, with the other node in the cluster containing the
shard. For a cluster configuration, you do not need to reconfigure shards, but you should set the
replica count. If needed, you can change this during your Media Index configuration, but you should
not change the shard count once configuration is complete. If you modify a shard that has been
configured, you must re-index your system. For information on setting replica counts, see
“Configuring Media | Index” on page 19.
Preparing for Media | Index Configuration
When you install MCS, Media Index services are stopped. Before you begin configuring Media
Index, you must make sure all Media Index services are added to the cluster.
To ensure that the Media Index services are added to the cluster, do the following:
t On one of the nodes of your cluster, type the following command:
/opt/avid/cluster/bin/search-cluster setup --cluster-ip=<CLUSTER-IP>
The necessary resources are added to the cluster configuration, and the resources needed for the
configuration start.
Shard Count and Usage
18
Shard Count and Usage
When you configure Media Index, you can set the number of primary shards (see “Configuring
Media | Index” on page 19). The number of shards in your configuration affects the amount of data
that can be stored in your index, although the type of data and metadata affects the size of the index
as well. For single node configurations, Avid recommends that you set the default number of shards
as 1 and the default number of replicas as 0. For a cluster setup, the actual number of shards and
replicas needed depends on your configuration and use cases.
A single shard can contain your entire index, and it can use all of the resources of a single node. In
cluster configurations, you can increase the shard count to decrease the amount of data per shard.
This spreads the load across multiple nodes. Coupled with replicas, this can provide redundancy and
flexibility for your index. For example, if you start with two nodes but know that at some point you
might scale your configuration up to six nodes, you might want to configure Media Index initially for
six shards.
Using multiple shards and replicas also gives your index more stability in case of a failure on one of
your nodes or if you need to take one or more nodes offline for maintenance. For example, the
following table illustrates a configuration with three nodes, three shards distributed on the nodes, and
one replica (for each shard).
If Node 1 goes offline, Replica 1 on Node 3 becomes a primary shard and the index remains fully
functional. However, there are now no replicas for Shards 1 or 2. Elasticsearch then re-creates the
missing replicas, as illustrated in the following table.
If Node 2 goes offline, the index remains functional because Node 3 contains Shards 1 and 3, as well
as a replica of Shard 3. However, if Node 2 goes offline before Elasticsearch re-creates the replicas,
then the index is incomplete and cannot work.
Node Shard Replica
112
223
331
Node Shard Replica
1 [offline] [offline]
2 2 3, 1
33, 12
Configuring Media | Index
19
If you need to take a node offline, you can do any of the following, depending on your needs and
your setup:
Increase the replica count before removing a node to allow for more nodes to be taken offline.
This causes Elasticsearch to copy data on startup, which can consume processor resources. This
can be a good solution if you remove multiple nodes. However, increasing the number of replicas
puts more load on the existing nodes, both in terms of memory needed for the index and for
storage space.
Decrease number of shards. This is not a good solution for configurations with large indexes
because you cannot dynamically change the shard count changes on existing indexes. You can
change the replica count at any time, but if you want to change the shard count you must reset the
index, reconfigure it with the new shards count, and then re-index the data.
Stop Media Index services completely before taking a node offline. You can start the services
again after the node is brought back online and the cluster is restored. This is the best solution
when you need to remove a node temporarily from the cluster.
You can change the number of replicas in a cluster, which allows you to scale your index up or down
as demand requires. However, once you configure your shard count for an index, you cannot modify
this without a full re-index operation. Setting a higher shard count during Media Index configuration
does not impact performance for the index, but there are few advantages. The replica count is more
important in determining the functionality of the index when a node goes offline.
Configuring Media | Index
You configure Media Index in the Media Central | UX System Settings. You must provide the
following properties in your settings:
Cluster Name — Avid recommends that you use the zone name or location. The cluster name
identifies the Elasticsearch node as part of a cluster. Nodes with the same cluster name can be
joined in a cluster. You must use a different cluster name for each zone in a multi-zone setup,
which requires modifying the cluster name for remote zones.
When you configure Elasticsearch in a multi-zone environment, Avid recommends that you use
the zone name used during the bus and UMS multi-zone setup step as the Elasticsearch cluster
name.
c
If you change the cluster name, during a restart Elasticsearch creates a new data folder. If you
had any indexes before you changed the cluster name, the indexes fail to appear in your
configuration and the information in them is not accessible. While the index data is not lost,
Avid recommends that you not change the cluster name after your initial configuration. When
you work in a multi-zone set-up, you should consider which cluster names you plan to use in all
zones and not change them after the indexing process has started.
Elasticsearch Cluster Hosts — Specify the server or servers where Elasticsearch service is
running. Avid recommends you use the hostname of the system to easily identify the different
systems within the Elasticsearch configuration. In a standalone deployment, the host is a
hostname or IP address of the Media Central node. In a clustered environment, the host is a series
of hostnames or IP addresses of all nodes in a cluster. Multiple cluster host values must be
separated with commas.
Elasticsearch TCP Port — Specify the TCP port of the Elasticsearch data node, used for binary
connection protocol and for inter-node communications. The default value is 9300. In most cases
you, you do not need to modify this property.
Configuring Media | Index
20
Elasticsearch HTTP Port — Specify the port of the Elasticsearch data node HTTP API. The
default value is 9200. In most cases you, you do not need to modify this property.
Elasticsearch Tribe TCP Port — Specify the TCP port of the Elasticsearch tribe node, used for
inter-node communications. The default value is 9305. In most cases you, you do not need to
modify this property.
Elasticsearch Tribe HTTP Port — Specify the port of the Elasticsearch tribe node HTTP API.
The default value is 9201. In most cases you, you do not need to modify this property
Default Shards — Specify default shards count. Avid recommends using a default value of 1
shard.
Default Replicas — Specify default replica count. The default number of replicas is 0, which is
the required replica count for a single-node configuration. In an MCS cluster installation, you
must set the default number of replicas to a number greater than zero.
c
A replica count greater than zero is necessary in a cluster configuration in order to ensure that
your data gets distributed properly and remains safe. For maximum security, you should set
the replica count to a value of <number of MCS cluster nodes> – 1. Do not set the replica count
to a value greater than this. For example, if your configuration uses two nodes, then set the
replica count to 1.
Supported languages — Lists the languages supported by Media Index.
Media Index supports multiple languages for your search. However, enabling all languages can slow
down searches. You should enable only those languages your users require. If you work with a
multi-zone configuration, you can enable different languages for each zone, and these languages are
then available for all indexes within the specified zone. If possible, your language selection should be
the same across all zones, because a search using one language returns results only from indexes that
you have configured for this language. The following table provides an example of which languages
are used in searches within a multi-zone configuration with different languages enabled for different
zones.
c
If you change your language settings after you have configured Media Index, you must reset
Media Index. This deletes all indexes, which you then need to re-index.
When you set up a tribe node, you need to make sure the Elasticsearch tribe node configuration file
contains the appropriate properties. For information on configuring tribe nodes in a multi-zone
environment, see “Setting Up Multi-Zone Search” on page 25.
When you set these values and apply your changes, Media Index writes to several configuration files
and restarts cluster services and resources. It also creates the system_data index. This process might
take some time, depending on your cluster configuration.
Enabled Languages Language Selected for Search Languages in Results
Zone 1: English, French
Zone 2: English, Korean
English Zone 1: English
Zone 2: English
Zone 1: English, French
Zone 2: English, Korean
French Zone 1: French
Zone 2: [no results]
Zone 1: English, French, Korean
Zone 2: English, French, Korean
French Zone 1: French
Zone 2: French
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Avid Media Media Index 2.6 Configuration Guide

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