db: Add index to improve log_status queries #6621
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📝 Walkthrough📝 WalkthroughWalkthroughThe changes in this pull request include an update to the version number of the Changes
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🚧 Files skipped from review as they are similar to previous changes (1)
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (3)
db/migration/src/m20241112_000018_logs_add_index.rs (2)
9-24: LGTM: Index effectively addresses performance objectivesThe index creation strategy is well-designed:
- Targets unprocessed logs with the WHERE clause
- Includes relevant columns in a logical order
- Comment documents significant performance improvement from 100ms to 1e-5s
This aligns perfectly with the PR objective of improving query performance for the log_status table.
Consider documenting this performance improvement in the PR description to help with future maintenance.
42-46: Consider removing dead_code warningsThe
#[warn(dead_code)]attributes onProcessedandProcessedAtfields might be unnecessary:
- These fields are likely used elsewhere in the codebase
- The enum is used for table/column identification in SeaORM
- #[warn(dead_code)] Processed, // Time when the log was processed. - #[warn(dead_code)] ProcessedAt,db/migration/src/lib.rs (1)
131-134: LGTM! Migration correctly integrated into MigratorChainLogs.The migration is properly added to the logs-specific migrator, which aligns with the PR objective to improve log_status queries. The separation of logs into a dedicated migrator prevents blocking other database operations.
The current architecture of keeping logs separate from the main database is a good practice as it:
- Facilitates easier log exports
- Prevents log operations from blocking other database operations
- Allows for independent scaling of log storage
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Review profile: CHILL
⛔ Files ignored due to path filters (1)
Cargo.lockis excluded by!**/*.lock
📒 Files selected for processing (3)
db/migration/Cargo.toml(1 hunks)db/migration/src/lib.rs(3 hunks)db/migration/src/m20241112_000018_logs_add_index.rs(1 hunks)
✅ Files skipped from review due to trivial changes (1)
- db/migration/Cargo.toml
🧰 Additional context used
📓 Learnings (1)
db/migration/src/m20241112_000018_logs_add_index.rs (1)
Learnt from: tolbrino
PR: hoprnet/hoprnet#6399
File: db/migration/src/m20240930_000017_logs_create_log.rs:112-113
Timestamp: 2024-11-10T19:51:43.534Z
Learning: In our Rust SeaORM database migrations, we use binary types (e.g., `binary_len(8)`) for index columns such as `TransactionIndex`, `LogIndex`, and `BlockNumber` to maintain consistency across models.
🔇 Additional comments (6)
db/migration/src/m20241112_000018_logs_add_index.rs (3)
3-7: LGTM: Migration structure follows SeaORM patterns
The migration structure is well-defined with proper trait implementations.
20-21: Verify unique constraint implications
The unique constraint on the index could potentially fail if there are existing duplicate entries in the unprocessed logs.
#!/bin/bash
# Description: Check for potential duplicate entries that might violate the unique constraint
# Search for existing queries or tests that might reveal the uniqueness assumption
rg -A 5 "SELECT.*FROM.*log_status.*WHERE.*checksum.*IS NULL.*ORDER BY.*block_number"
# Look for related test cases
fd -e rs | xargs rg "test.*log.*status"17-19: Verify column types match binary convention
Based on previous learnings from PR #6399, index columns like BlockNumber, TransactionIndex, and LogIndex should be using binary types for consistency.
✅ Verification successful
Column types already follow binary convention
Looking at the table creation migration, the columns BlockNumber, TransactionIndex, and LogIndex are already defined as binary types with 8-byte length:
.col(ColumnDef::new(LogStatus::TransactionIndex).not_null().binary_len(8))
.col(ColumnDef::new(LogStatus::LogIndex).not_null().binary_len(8))
.col(ColumnDef::new(LogStatus::BlockNumber).not_null().binary_len(8))The index creation in the new migration correctly references these binary columns.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify column types in the LogStatus table
# Expected: These columns should be defined as binary types
# Search for the table creation migration
rg -l "create_table.*LogStatus"
# Search for column definitions
ast-grep --pattern 'col($name).binary()'
Length of output: 128
Script:
#!/bin/bash
# Let's first find the table creation migration for LogStatus
rg -l "LogStatus" db/migration/src/
# Then look for the column definitions
rg -A 10 "create_table.*LogStatus" db/migration/src/
# Also search for any enum definitions related to LogStatus
rg "enum LogStatus" -A 10
Length of output: 1947
Script:
#!/bin/bash
# Let's look at the table creation migration to see the column types
rg -A 20 "create_table.*log_status" db/migration/src/m20240930_000017_logs_create_log.rs
# Also check for any modifications to these columns in subsequent migrations
rg "alter.*log_status" db/migration/src/
Length of output: 133
Script:
#!/bin/bash
# Let's try a different approach to find the table creation details
cat db/migration/src/m20240930_000017_logs_create_log.rs
# And also look at the index creation migration
cat db/migration/src/m20241112_000018_logs_add_index.rs
Length of output: 6799
db/migration/src/lib.rs (3)
20-20: LGTM! Module declaration follows naming convention.
The new migration module follows the established naming pattern: <date>_<sequence>_<description>, which maintains consistency with existing migrations.
20-20: Verify the index implementation details.
While the migration integration looks correct, please ensure that:
- The index implementation in
m20241112_000018_logs_add_indexproperly addresses the slow query issue mentioned in #6616 - The index covers the columns used in the JOIN condition between
log_statusandlogtables
Let's examine the migration implementation:
#!/bin/bash
# Description: Verify the index implementation details
# Expected: Should find CREATE INDEX statement targeting log_status table
# Look for the index creation SQL in the migration file
rg -A 5 'CREATE.*INDEX' db/migration/src/m20241112_000018_logs_add_index.rs
# Look for any references to the affected tables
rg -A 5 'log_status|log.*table' db/migration/src/m20241112_000018_logs_add_index.rsAlso applies to: 131-134
61-61: LGTM! Migration correctly integrated into main Migrator.
The new migration is properly added as the last entry in the migration sequence, maintaining the chronological order.
Let's verify the migration sequence is correct:
✅ Verification successful
Migration sequence verified and correctly ordered
The migration m20241112_000018_logs_add_index is properly integrated as the last entry in the migration sequence. The verification shows:
- All migrations follow the correct naming pattern (YYYYMMDD_NNNNNN)
- The new migration (20241112) comes after the previous logs migration (20240930)
- The migration adds a performance-optimizing index for unprocessed logs with proper up/down migrations
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify migration sequence and naming pattern
# Expected: All migrations should follow the pattern YYYYMMDD_NNNNNN and be in chronological order
# Extract and verify migration names
rg -o 'm\d{8}_\d{6}[^:]+' db/migration/src/lib.rs | sort -c 2>/dev/null
if [ $? -eq 0 ]; then
echo "Migrations are in correct chronological order"
else
echo "Warning: Migrations are not in chronological order"
fi
Length of output: 796
Script:
#!/bin/bash
# Let's try a different approach to verify the migration sequence
# First, let's see all migrations in the lib.rs file with context
rg -A 1 "Box::new\(m\d{8}_\d{6}" db/migration/src/lib.rs
# Also check the actual migration file content
cat db/migration/src/m20241112_000018_logs_add_index.rs
Length of output: 4913
Fixes #6616