fix: fix pkpatternmatchdel bug #2717
Conversation
WalkthroughThe recent changes introduce a new configuration parameter, Changes
Sequence Diagram(s)sequenceDiagram
participant Admin as Admin
participant PikaConf as PikaConf
participant RocksDB as RocksDB
Admin->>PikaConf: Load Configuration
PikaConf->>PikaConf: Validate max-total-wal-size
PikaConf->>RocksDB: Set max-total-wal-size parameter
RocksDB-->>PikaConf: Confirmation
Admin->>PKPatternMatchDelCmd: Execute Command
PKPatternMatchDelCmd->>DB: Clean Database
PKPatternMatchDelCmd->>RedisCache: Potential Inconsistency Noted
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Actionable comments posted: 2
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (3)
- src/pika_admin.cc (1 hunks)
- src/pika_command.cc (1 hunks)
- src/storage/src/redis_strings.cc (1 hunks)
Additional comments not posted (1)
src/storage/src/redis_strings.cc (1)
1600-1600: Correctly updated parameters forStringMatchto fix pattern matching logic.Verification successful
The parameters passed to
StringMatchin other files appear to be consistent with the intended usage and do not require changes similar to those made inredis_strings.cc.
- In
redis_sets.cc,member.data()andmember.size()are used, which are correct.- In
type_iterator.h,parsed_key.Key().data()andparsed_key.Key().size()are used, which are correct.- In
redis_zsets.cc,member.data()andmember.size()are used, which are correct.- In
redis_hashes.cc,field.data()andfield.size()are used, which are correct.- In
redis_streams.cc,id.data()andid.size()are used, which are correct.No further changes are necessary.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that the new parameters for `StringMatch` are correctly used elsewhere in the codebase. # Test: Search for other usages of `StringMatch` to ensure consistency. rg --type cpp 'StringMatch\('Length of output: 2604
Script:
#!/bin/bash # Description: Verify the parameters passed to `StringMatch` in other files to ensure consistency and correctness. # Extract lines where `StringMatch` is used in `redis_sets.cc` rg --type cpp --line-number 'StringMatch\(' src/storage/src/redis_sets.cc # Extract lines where `StringMatch` is used in `type_iterator.h` rg --type cpp --line-number 'StringMatch\(' src/storage/src/type_iterator.h # Extract lines where `StringMatch` is used in `redis_zsets.cc` rg --type cpp --line-number 'StringMatch\(' src/storage/src/redis_zsets.cc # Extract lines where `StringMatch` is used in `redis_hashes.cc` rg --type cpp --line-number 'StringMatch\(' src/storage/src/redis_hashes.cc # Extract lines where `StringMatch` is used in `redis_streams.cc` rg --type cpp --line-number 'StringMatch\(' src/storage/src/redis_streams.ccLength of output: 1634
Script:
#!/bin/bash # Description: Extract code snippets around `StringMatch` calls to verify the correctness of the parameters. # Extract code snippets around `StringMatch` in `redis_sets.cc` rg --type cpp --context 5 'StringMatch\(' src/storage/src/redis_sets.cc # Extract code snippets around `StringMatch` in `type_iterator.h` rg --type cpp --context 5 'StringMatch\(' src/storage/src/type_iterator.h # Extract code snippets around `StringMatch` in `redis_zsets.cc` rg --type cpp --context 5 'StringMatch\(' src/storage/src/redis_zsets.cc # Extract code snippets around `StringMatch` in `redis_hashes.cc` rg --type cpp --context 5 'StringMatch\(' src/storage/src/redis_hashes.cc # Extract code snippets around `StringMatch` in `redis_streams.cc` rg --type cpp --context 5 'StringMatch\(' src/storage/src/redis_streams.ccLength of output: 7462
| @@ -3035,6 +3035,7 @@ void PKPatternMatchDelCmd::DoInitial() { | |||
| pattern_ = argv_[1]; | |||
| } | |||
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| //TODO: may lead to inconsistent between rediscache and db, because currently it only cleans db | |||
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Potential data consistency issue between cache and database.
The added comment indicates a potential inconsistency between the cache and the database when deleting keys. This is a critical issue that could lead to data integrity problems. It's recommended to investigate this further and ensure that both the cache and the database are being cleaned up properly to maintain consistency.
| @@ -131,7 +131,7 @@ void InitCmdTable(CmdTable* cmd_table) { | |||
| cmd_table->insert(std::pair<std::string, std::unique_ptr<Cmd>>(kCmdNamePadding, std::move(paddingptr))); | |||
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| std::unique_ptr<Cmd> pkpatternmatchdelptr = | |||
| std::make_unique<PKPatternMatchDelCmd>(kCmdNamePKPatternMatchDel, 3, kCmdFlagsWrite | kCmdFlagsAdmin); | |||
| std::make_unique<PKPatternMatchDelCmd>(kCmdNamePKPatternMatchDel, 2, kCmdFlagsWrite | kCmdFlagsAdmin); | |||
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Tip
Codebase Verification
The constructor for PKPatternMatchDelCmd in include/pika_admin.h still expects three parameters: const std::string& name, int arity, and uint32_t flag. This does not match the new arity of 2 as indicated in the initialization code.
include/pika_admin.h: The constructorPKPatternMatchDelCmd(const std::string& name, int arity, uint32_t flag)
Analysis chain
Verify that the implementation of PKPatternMatchDelCmd supports the new arity of 2.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify the implementation of `PKPatternMatchDelCmd` supports the new arity of 2.
# Test: Search for the implementation of `PKPatternMatchDelCmd`. Expect: Arity should be 2.
ast-grep --lang cpp --pattern $'class PKPatternMatchDelCmd {
$$$
PKPatternMatchDelCmd($_, $_, $_) {
$$$
}
$$$
}'
Length of output: 472
Script:
#!/bin/bash
# Description: Locate the definition of `PKPatternMatchDelCmd` and inspect its constructor.
# Step 1: Locate the definition of `PKPatternMatchDelCmd`.
ast-grep --lang cpp --pattern 'class PKPatternMatchDelCmd'
# Step 2: Inspect the constructor of `PKPatternMatchDelCmd` to ensure it matches the new arity of 2.
ast-grep --lang cpp --pattern $'PKPatternMatchDelCmd::PKPatternMatchDelCmd($_, $_) {
$$$
}'
Length of output: 155
Script:
#!/bin/bash
# Description: Locate the definition of `PKPatternMatchDelCmd` and inspect its constructor.
# Step 1: Locate the definition of `PKPatternMatchDelCmd`.
rg 'class PKPatternMatchDelCmd'
# Step 2: Inspect the constructor of `PKPatternMatchDelCmd` to ensure it matches the new arity of 2.
rg 'PKPatternMatchDelCmd::PKPatternMatchDelCmd'
Length of output: 144
Script:
#!/bin/bash
# Description: Inspect the constructor of `PKPatternMatchDelCmd` in `include/pika_admin.h` to ensure it matches the new arity of 2.
# Step 1: Locate the constructor of `PKPatternMatchDelCmd` in `include/pika_admin.h`.
rg 'PKPatternMatchDelCmd::PKPatternMatchDelCmd' include/pika_admin.h
Length of output: 68
Script:
#!/bin/bash
# Description: Inspect the constructor of `PKPatternMatchDelCmd` in `include/pika_admin.h` to ensure it matches the new arity of 2.
# Step 1: Locate the constructor of `PKPatternMatchDelCmd` in `include/pika_admin.h`.
rg 'PKPatternMatchDelCmd' include/pika_admin.h
Length of output: 230
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Actionable comments posted: 1
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (2)
- conf/pika.conf (1 hunks)
- src/pika_conf.cc (1 hunks)
Additional comments not posted (1)
conf/pika.conf (1)
323-323: The addition of themax-total-wal-sizeconfiguration parameter is clear and well-documented. This setting is crucial for controlling the size of WAL files, which can significantly impact the performance and stability of the database.
| // max-total-wal-size | ||
| GetConfInt64("max-total-wal-size", &max_total_wal_size_); | ||
| if (max_total_wal_size_ < 0) { | ||
| max_total_wal_size_ = 0; | ||
| } |
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Ensure proper handling of negative values for max-total-wal-size.
The implementation correctly sets max_total_wal_size_ to 0 if a negative value is loaded. This is a good safeguard against invalid configuration values. However, consider logging a warning or an error when such a case occurs to aid in debugging and configuration validation.
pkpatternmatchdel compares pattern and encoded-key in string type, which will not delete pattern key.
Summary by CodeRabbit
New Features
max-total-wal-sizeto control the total size of WAL files in RocksDB. This helps manage storage more effectively by triggering a flush when the limit is reached.Bug Fixes
PKPatternMatchDelCmdcommand initialization to use 2 arguments instead of 3 for better consistency.Redis::PKPatternMatchDelfunction to use the correct parameters, enhancing data integrity.Documentation
PKPatternMatchDelCmd::Do()method to indicate a potential inconsistency issue betweenrediscacheand the database.