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[fix][gc] Change order of doGcLedgers and extractMetaFromEntryLogs #3869

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merged 1 commit into from
Mar 16, 2023

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@dlg99 dlg99 commented Mar 16, 2023

Motivation

Garbage collector does

 extractMetaFromEntryLogs();
 doGcLedgers();

where extractMetaFromEntryLogs checks if ledger exists in the storage and doGcLedgers removes deleted ledgers from the storage.

Logically, these should be reordered.
Currently it means that deleted ledgers will be either re-verified during compaction and skipped (if verifyMetadataOnGC is true) or picked up on the next GC run.
In prod it means data released later.

The tests pass as they tend to do

        getGCThread().enableForceGC();
        getGCThread().triggerGC().get();

where both of these calls trigger gc.

Changes

reordered operations

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@wenbingshen wenbingshen left a comment

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Good catch!

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@eolivelli eolivelli left a comment

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+1

@eolivelli eolivelli merged commit a633ec4 into apache:master Mar 16, 2023
dlg99 added a commit to dlg99/bookkeeper that referenced this pull request Mar 16, 2023
eolivelli pushed a commit to datastax/bookkeeper that referenced this pull request Mar 17, 2023
merlimat added a commit to merlimat/bookkeeper that referenced this pull request Mar 21, 2023
* Fix memory leak issue of reading small entries (apache#3844)

* Make read entry request recyclable (apache#3842)

* Make read entry request recyclable

* Move recycle to finally block

* Fix test and comments

* Fix test

* Avoid unnecessary force write. (apache#3847)

* Avoid unnecessary force write.

* code clean.

* fix style

* Correct the running job name for the test group (apache#3851)

---

### Motivation

The running tests job name doesn't match the tests. Correct
the job name.

* add timeout for two flaky timeout tests (apache#3855)

* add V2 protocal and warmupMessages support for benchMark (apache#3856)

* disable trimStackTrack for code-coverage profile (apache#3854)

* Fix bkperf log directory not found (apache#3858)

### Motivation
When using the bkperf command `bin/bkperf journal append -j data -n 100000000 --sync true` to test the BookKeeper journal performance, it failed with the following exception
```
[0.002s][error][logging] Error opening log file '/Users/hangc/Downloads/tmp/tc/batch/ta/bookkeeper-all-4.16.0-SNAPSHOT/logs/bkperf-gc.log': No such file or directory
[0.002s][error][logging] Initialization of output 'file=/Users/hangc/Downloads/tmp/tc/batch/ta/bookkeeper-all-4.16.0-SNAPSHOT/logs/bkperf-gc.log' using options 'filecount=5,filesize=64m' failed.
Invalid -Xlog option '-Xlog:gc=info:file=/Users/hangc/Downloads/tmp/tc/batch/ta/bookkeeper-all-4.16.0-SNAPSHOT/logs/bkperf-gc.log::filecount=5,filesize=64m', see error log for details.
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
```

The root cause is that the `logs` directory was not created.

### Modifications
Create the `logs` directory before bkperf started.

* [improve] Fix indexDirs upgrade failed (apache#3762)

* fix indexDirs upgrade failed

* Bump checkstyle-plugin from 3.1.2 to 3.2.1 (apache#3850)

* [Flaky] Fix flaky test in testRaceGuavaEvictAndReleaseBeforeRetain (apache#3857)

* Fix flaky test in testRaceGuavaEvictAndReleaseBeforeRetain

* format code

* Fix NPE in BenchThroughputLatency (apache#3859)

* Update website to 4.15.4 (apache#3862)

---

### Motivation

Update website to 4.15.4

* change rocksDB config level_compaction_dynamic_level_bytes to CFOptions (apache#3860)

### Motivation
After PR apache#3056 , Bookkeeper set `level_compaction_dynamic_level_bytes=true` as `TableOptions` in `entry_location_rocksdb.conf.default` , which will cause `level_compaction_dynamic_level_bytes` lose efficacy and will cause rocksDB .sst file compact sort chaos when update bookie release.
As RocksDB  conf, `level_compaction_dynamic_level_bytes` need set as `CFOptions` https://github.com/facebook/rocksdb/blob/master/examples/rocksdb_option_file_example.ini

<img width="703" alt="image" src="https://user-images.githubusercontent.com/84127069/224640399-d5481fe5-7b75-4229-ac06-3d280aa9ae6d.png">


<img width="240" alt="image" src="https://user-images.githubusercontent.com/84127069/224640621-737d0a42-4e01-4f38-bd5a-862a93bc4b32.png">

### Changes

1. Change `level_compaction_dynamic_level_bytes=true` from `TableOptions` to `CFOptions`  in `entry_location_rocksdb.conf.default` ;

* Correct the running job flag for the test group. (apache#3865)

* Release note for 4.15.4 (apache#3831)

---

### Motivation

Release note for 4.15.4

* Add trigger entry location index rocksDB compact interface. (apache#3802)

### Motivation
After the bookie instance running long time, the bookie entry location index rocksDB `.sst` file size maybe expand to 20-30GB as one ledger data dir's location index in some case, which will cause the rocksDB scan operator cost more time and cause the bookie client request timeout.

Add trigger entry location index rocksDB compact REST API which can trigger  entry location rocksDB compaction and get the compaction status. 

The full range entry location index rocksDB compact will cause the entry location index dir express higher IOUtils. So we'd better trigger the entry location rocksDB compact by the api in low data flow period.

**Some case before rocksDB compact:**
<img width="232" alt="image" src="https://user-images.githubusercontent.com/84127069/220893469-e6fbc1a3-c767-4ffe-8ae9-f05ad1833c50.png">


<img width="288" alt="image" src="https://user-images.githubusercontent.com/84127069/220891359-dc37e139-37b0-461b-8001-dcc48517366c.png">

**After rocksDB compact:**
<img width="255" alt="image" src="https://user-images.githubusercontent.com/84127069/220891419-24267fa7-348c-4fbd-8b3e-70a99840bce5.png">

### Changes
1. Add  REST API  to trigger entry location index rocksDB compact.

* Pick the higher leak detection level between netty and bookkeeper. (apache#3794)

### Motivation
1. Pick the higher leak detection level between netty and bookkeeper.
2. Enhance the bookkeeper leak detection value match rule, now it's case insensitive.

There are detailed information about it: https://lists.apache.org/thread/d3zw8bxhlg0wxfhocyjglq0nbxrww3sg

* Disable code coverage and codecov report (apache#3863)

### Motivation

There're two reasons that we want to disable the code coverage.

1. The current report result is not accurate.
2. We can't get the PR's unit test's code coverage because of the apache Codecov permission.

* Add small files check in garbage collection (apache#3631)

### Motivation
When we use `TransactionalEntryLogCompactor` to compact the entry log files, it will generate a lot of small entry log files, and for those files, the file usage is usually greater than 90%, which can not be compacted unless the file usage decreased.

![image](https://user-images.githubusercontent.com/5436568/201135615-4d6072f5-e353-483d-9afb-48fad8134044.png)


### Changes
We introduce the entry log file size check during compaction, and the checker is controlled by `gcEntryLogSizeRatio`. 
If the total entry log file size is less than `gcEntryLogSizeRatio * logSizeLimit`, the entry log file will be compacted even though the file usage is greater than 90%. This feature is disabled by default and the `gcEntryLogSizeRatio` default value is `0.0`

* [improvement] Delay all audit task when have a already delayed bookie check task (apache#3818)

### Motivation

Fixes apache#3817 

For details, see: apache#3817 

### Changes

When there is an `auditTask` during the `lostBookieRecoveryDelay` delay, other detection tasks should be skipped.

* Change order of doGcLedgers and extractMetaFromEntryLogs (apache#3869)

* [Bugfix] make metadataDriver initialization more robust (apache#3873)

Co-authored-by: zengqiang.xu <[email protected]>

* Enable CI for the streamstorage python client (apache#3875)

* Fix compaction threshold default value precision problem. (apache#3871)

* Fix compaction threshold precision problem.

* Fix compaction threshold precision problem.

* Single buffer for small add requests (apache#3783)

* Single buffer for small add requests

* Fixed checkstyle

* Fixed treating of ComposityByteBuf

* Fixed merge issues

* Fixed merge issues

* WIP

* Fixed test and removed dead code

* Removed unused import

* Fixed BookieJournalTest

* removed unused import

* fix the checkstyle

* fix failed test

* fix failed test

---------

Co-authored-by: chenhang <[email protected]>

* Add log for entry log file delete. (apache#3872)

* Add log for entry log file delete.

* add log info.

* Address the comment.

* Address the comment.

* revert the code.

* Improve group and flush add-responses after journal sync (apache#3848)

Descriptions of the changes in this PR:
This is an improvement for apache#3837

### Motivation
1. Now if the maxPendingResponsesSize is expanded large, it will not decrease. => We should make it flexible.
2. Now after prepareSendResponseV2 to the channel, then we trigger all channels to flush pendingSendResponses, maybe there is only a few channels that need to flush, but if we trigger all channels, it's a waste. => We only flush the channel which prepareSendResponseV2.

---------

Co-authored-by: Penghui Li <[email protected]>
Co-authored-by: Yong Zhang <[email protected]>
Co-authored-by: Hang Chen <[email protected]>
Co-authored-by: wenbingshen <[email protected]>
Co-authored-by: ZhangJian He <[email protected]>
Co-authored-by: lixinyang <[email protected]>
Co-authored-by: YANGLiiN <[email protected]>
Co-authored-by: Lishen Yao <[email protected]>
Co-authored-by: Andrey Yegorov <[email protected]>
Co-authored-by: ZanderXu <[email protected]>
Co-authored-by: zengqiang.xu <[email protected]>
Co-authored-by: Matteo Merli <[email protected]>
Ghatage pushed a commit to sijie/bookkeeper that referenced this pull request Jul 12, 2024
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4 participants