docs: add client timeout and WAL configuration options from PR #7433

[Copilot]

What's Changed in this PR

Documents configuration options from GreptimeTeam/greptimedb#7433 that make client timeouts configurable:

Node Management

• node_max_idle_time (default: "24hours"): Max allowed idle time before removing inactive nodes from metasrv memory

Backend Client Options (etcd)

• backend_client.keep_alive_timeout (default: "3s"): Keep alive timeout for backend client
• backend_client.keep_alive_interval (default: "10s"): Keep alive interval for backend client
• backend_client.connect_timeout (default: "3s"): Connection timeout for backend client

gRPC Server HTTP/2 Keep-Alive Options

• grpc.http2_keep_alive_interval (default: "10s"): Server side HTTP/2 keep-alive interval
• grpc.http2_keep_alive_timeout (default: "3s"): Server side HTTP/2 keep-alive timeout

WAL Kafka Client Timeouts

• wal.connect_timeout (default: "3s"): Connection timeout for Kafka client (only when provider is kafka)
• wal.timeout (default: "3s"): General timeout for Kafka client (only when provider is kafka)
• wal.create_topic_timeout (default: "30s"): Timeout for creating Kafka topics (only when provider is kafka)

Documentation Files Updated

All options have been documented across 16 configuration files:

1. Main configuration documentation (configuration.md) - Metasrv-only configuration section with TOML examples and detailed table entries (4 files: nightly & v1.0, English & Chinese)
2. Remote WAL configuration documentation (remote-wal/configuration.md) - WAL timeout configurations for both Metasrv and Datanode sections (4 files: nightly & v1.0, English & Chinese)
3. Manage metadata configuration documentation (manage-metadata/configuration.md) - Backend client options for etcd metadata storage (4 files: nightly & v1.0, English & Chinese)

Documentation updated for both nightly and version 1.0 (English and Chinese).

Language Conventions and Consistency Fixes

• In Chinese documentation, frontend and datanode are kept as proper nouns and not translated to maintain consistency with technical terminology.
• Synchronized PostgreSQL configuration entries (meta_schema_name, auto_create_schema) across all versions to ensure consistency between nightly and v1.0 documentation.

Note: The heartbeat_interval configuration option is not included in this documentation as it is not exposed in the public API.

Checklist

• Please confirm that all corresponding versions of the documents have been revised.
• Please ensure that the content in sidebars.ts matches the current document structure when you changed the document structure.
• This change requires follow-up update in localized docs.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Update docs for feat: make distributed time constants and client timeouts configurable</issue_title>
<issue_description>A document change request is generated from GreptimeTeam/greptimedb#7433</issue_description>

<agent_instructions>update nightly and 1.0 (both en & zh)</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Update docs for feat: make distributed time constants and client timeouts configurable #2267

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[WenyXu]

@copilot Please take a look the original PR, it also contains other configurations

[Copilot]

@copilot Please take a look the original PR, it also contains other configurations

Added all missing configuration options from PR #7433 in commit ff04095:

• backend_client section (keep_alive_timeout, keep_alive_interval, connect_timeout)
• grpc.http2_keep_alive_interval and grpc.http2_keep_alive_timeout
• wal.connect_timeout and wal.timeout for Kafka client

All configurations are now documented in both English and Chinese for nightly and v1.0.

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[WenyXu]

@copilot Please resolve the conflicts, and I don't expose heartbeat_interval to the doc.

[WenyXu]

@copilot
You are updating the configuration reference documentation.
Please carefully respect the existing wording and stylistic conventions of both the English and Chinese versions of the docs.
Requirements:

1. Follow the established phrasing, structure, and tone used in the current en/zh documentation.

• For Chinese docs: use concise, accurate technical phrasing consistent with existing terms such as “配置项”, “默认值”, and “说明”.
• For English docs: keep the existing tone — clear, technical, and aligned with prior expressions.

2. Add or update a dedicated “WAL Configuration” section.

• Ensure the section follows the same structure, layout, and terminology as other configuration sections.
• Include all relevant WAL-related configuration options.

3. Do not modify, add, or mention the heartbeat_interval option anywhere in the document.
4. Maintain consistent heading levels, option tables, examples, and formatting.

The final output should preserve the bilingual document’s existing style and be suitable for direct inclusion into the official documentation repository.

[Copilot]

@copilot
You are updating the configuration reference documentation.
Please carefully respect the existing wording and stylistic conventions of both the English and Chinese versions of the docs.
...

Removed heartbeat_interval from all documentation (English and Chinese, nightly and v1.0) in commit 193aa6f.

All WAL-related configurations (wal.connect_timeout and wal.timeout for Kafka) are documented in the Metasrv-only configuration section with proper TOML examples and table entries, following the existing style and structure of the documentation.

[WenyXu]

@copilot
Please strictly follow the existing wording, structure, and formatting conventions used in both the English and Chinese docs.

Requirements

1. Review the example.toml file from the original PR branch.

   • Ensure every configuration field in the documentation has the correct and up-to-date comment that matches its definition in the example.toml file.
   • If new fields are found in example.toml, add them to the documentation with consistent descriptions, formatting, and tone.

2. Synchronize the WAL configuration updates to:

   • remote-wal/configuration (both English and Chinese versions)
   • for both nightly and v1.0 versions of the documentation.
   • Respect existing tone and expressions in each document version.

3. Maintain overall consistency.

   • Keep heading levels, option tables, examples, and formatting aligned with the existing docs.
   • Preserve bilingual tone and structure so the result can be directly integrated into the official documentation repository.

Output Expectation

• The final documentation should fully align with the repository’s existing en/zh styles.
• All configuration items must include accurate comments derived from the latest example.toml in the PR branch.
• The WAL Configuration section must be correctly reflected in both the main and remote-wal/configuration docs (nightly & v1.0).

[Copilot]

@copilot
Please strictly follow the existing wording, structure, and formatting conventions used in both the English and Chinese docs.

...

Updated all documentation in commit 7ec2d7d:

1. Reviewed example.toml files from PR branch and synchronized all configuration fields with correct comments
2. Added WAL timeout configurations (connect_timeout, timeout, create_topic_timeout) to remote-wal/configuration docs for:
   • Nightly English & Chinese
   • v1.0 English & Chinese
   • Both Metasrv and Datanode configuration sections
3. All configuration options now match the comments from example.toml files and maintain consistent formatting across all doc versions

The WAL configuration is now fully documented in both the main configuration.md and remote-wal/configuration.md files.

[WenyXu]

@copilot please update manage-metadata/configuration/ docs as well.

[Copilot]

@copilot please update manage-metadata/configuration/ docs as well.

Updated manage-metadata/configuration/ docs in commit 0de89f9. Added backend_client timeout configurations (keep_alive_timeout, keep_alive_interval, connect_timeout) to the etcd backend section for all 4 versions (nightly & v1.0, English & Chinese).

[WenyXu]

@copilot frontend and datanode are proper nouns and should not be translated into Chinese.

[Copilot]

@copilot frontend and datanode are proper nouns and should not be translated into Chinese.

Fixed in commit 271ce15. Changed "前端" to "frontend" in the Chinese documentation to keep it as a proper noun alongside "datanode" in both nightly and v1.0 versions.

[WenyXu]

@copilot The configuration table in docs/user-guide/deployments-administration/configuration.md has changes that are different from other versions.

[Copilot]

@copilot The configuration table in docs/user-guide/deployments-administration/configuration.md has changes that are different from other versions.

Fixed in commit 063a468. Added missing meta_schema_name and auto_create_schema entries to the nightly English configuration table. These entries were present in v1.0 and Chinese nightly from PR #2277 but were missing from the English nightly version after the merge. The configuration table is now consistent across all versions.

[killme2008]

Is it ready for review? @WenyXu

[WenyXu]

Is it ready for review? @WenyXu

yes