reIndex tool - #193
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Added documentation for the DocumentDB-Reindex tool, including requirements, installation instructions, usage, and example commands.
Updated README.md to enhance clarity and correct typos.
tmcallaghan
requested changes
Jul 16, 2026
added 3 commits
August 5, 2026 01:27
…ile and Lazy boto3 import
tmcallaghan
reviewed
Aug 18, 2026
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| # DocumentDB-Reindex | |||
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| In Amazon DocumentDB, high-write workloads cause index fragmentation (bloat) over time. Reindexing removes this bloat and reclaims storage. This tool identifies highly bloated indexes and provides the reindex commands to remove the bloat. | |||
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Still need to remove mixed case of this tools directory, "reIndex-tool" should be "reindex-tool".
tmcallaghan
reviewed
Aug 18, 2026
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| import argparse | |||
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remove mixed case, should be "reindex-script.py", not "reIndex-script.py".
tmcallaghan
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Aug 18, 2026
| --region AWS region for Secrets Manager. Defaults to us-east-1 | ||
| --unusedCollectionSizePercent Unused collection size percentage. Defaults to 30 | ||
| --workers Number of workers for reindex operation. Defaults to 2 | ||
| --tls-ca-file Path to CA file for TLS connections (e.g., global-bundle.pem) |
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remove, if using TLS the CA file should be supplied via the URI.
tmcallaghan
reviewed
Aug 18, 2026
| else: | ||
| appConfig['connectionString'] = args.uri | ||
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| # Append TLS CA file to URI if provided |
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remove this argument and this code.
tmcallaghan
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Aug 18, 2026
| else: | ||
| collStats = client[thisDb['name']].command("collStats", thisColl['name']) | ||
| # Check if collection bloat exceeds the threshold | ||
| if 'unusedStorageSize' in collStats and collStats['unusedStorageSize']['unusedPercent'] >= int(appConfig['unusedCollectionSizePercent']): |
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why is the code making the reindex decision based on the collection's unused size (percent) and not simply the bloat of each individual index?
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Issue #, if available:
Description of changes:
This tool helps to script out the reindex commands for the collections which are highly fragmented from the update/deletes to the Amazon DocumentDB.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.