forked from facebook/rocksdb
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add native logger support to RocksJava (facebook#12213)
Summary: ## Overview In this PR, we introduce support for setting the RocksDB native logger through Java. As mentioned in the discussion on the [Google Group discussion](https://groups.google.com/g/rocksdb/c/xYmbEs4sqRM/m/e73E4whJAQAJ), this work is primarily motivated by the JDK 17 [performance regression in JNI thread attach/detach calls](https://bugs.openjdk.org/browse/JDK-8314859): the only existing RocksJava logging configuration call, `setLogger`, invokes the provided logger over the JNI. ## Changes Specifically, these changes add support for the `devnull` and `stderr` native loggers. For the `stderr` logger, we add the ability to prefix every log with a `logPrefix`, so that it becomes possible know which database a particular log is coming from (if multiple databases are in use). The API looks like the following: ```java Options opts = new Options(); NativeLogger stderrNativeLogger = NativeLogger.newStderrLogger( InfoLogLevel.DEBUG_LEVEL, "[my prefix here]"); options.setLogger(stderrNativeLogger); try (final RocksDB db = RocksDB.open(options, ...)) {...} // Cleanup stderrNativeLogger.close() opts.close(); ``` Note that the API to set the logger is the same, via `Options::setLogger` (or `DBOptions::setLogger`). However, it will set the RocksDB logger to be native when the provided logger is an instance of `NativeLogger`. ## Testing Two tests have been added in `NativeLoggerTest.java`. The first test creates both the `devnull` and `stderr` loggers, and sets them on the associated `Options`. However, to avoid polluting the testing output with logs from `stderr`, only the `devnull` logger is actually used in the test. The second test does the same logic, but for `DBOptions`. It is possible to manually verify the `stderr` logger by modifying the tests slightly, and observing that the console indeed gets cluttered with logs from `stderr`. Pull Request resolved: facebook#12213 Reviewed By: cbi42 Differential Revision: D52772306 Pulled By: ajkr fbshipit-source-id: 4026895f78f9cc250daf6bfa57427957e2d8b053
- Loading branch information
1 parent
59ba1d2
commit 4835c11
Showing
17 changed files
with
474 additions
and
94 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| // Copyright (c) 2011-present, Facebook, Inc. All rights reserved. | ||
| // This source code is licensed under both the GPLv2 (found in the | ||
| // COPYING file in the root directory) and Apache 2.0 License | ||
| // (found in the LICENSE.Apache file in the root directory). | ||
|
|
||
| #include "util/stderr_logger.h" | ||
|
|
||
| #include <jni.h> | ||
|
|
||
| #include <memory> | ||
|
|
||
| #include "include/org_rocksdb_util_StdErrLogger.h" | ||
| #include "rocksjni/cplusplus_to_java_convert.h" | ||
| #include "rocksjni/portal.h" | ||
|
|
||
| /* | ||
| * Class: org_rocksdb_util_StdErrLogger | ||
| * Method: newStdErrLogger | ||
| * Signature: (BLjava/lang/String;)J | ||
| */ | ||
| jlong Java_org_rocksdb_util_StdErrLogger_newStdErrLogger(JNIEnv* env, | ||
| jclass /*jcls*/, | ||
| jbyte jlog_level, | ||
| jstring jlog_prefix) { | ||
| auto log_level = static_cast<ROCKSDB_NAMESPACE::InfoLogLevel>(jlog_level); | ||
| std::shared_ptr<ROCKSDB_NAMESPACE::StderrLogger>* sptr_logger = nullptr; | ||
| if (jlog_prefix == nullptr) { | ||
| sptr_logger = new std::shared_ptr<ROCKSDB_NAMESPACE::StderrLogger>( | ||
| new ROCKSDB_NAMESPACE::StderrLogger(log_level)); | ||
| } else { | ||
| jboolean has_exception = JNI_FALSE; | ||
| auto log_prefix = ROCKSDB_NAMESPACE::JniUtil::copyStdString( | ||
| env, jlog_prefix, &has_exception); // also releases jlog_prefix | ||
| if (has_exception == JNI_TRUE) { | ||
| return 0; | ||
| } | ||
| sptr_logger = new std::shared_ptr<ROCKSDB_NAMESPACE::StderrLogger>( | ||
| new ROCKSDB_NAMESPACE::StderrLogger(log_level, log_prefix)); | ||
| } | ||
| return GET_CPLUSPLUS_POINTER(sptr_logger); | ||
| } | ||
|
|
||
| /* | ||
| * Class: org_rocksdb_util_StdErrLogger | ||
| * Method: setInfoLogLevel | ||
| * Signature: (JB)V | ||
| */ | ||
| void Java_org_rocksdb_util_StdErrLogger_setInfoLogLevel(JNIEnv* /*env*/, | ||
| jclass /*jcls*/, | ||
| jlong jhandle, | ||
| jbyte jlog_level) { | ||
| auto* handle = | ||
| reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::StderrLogger>*>( | ||
| jhandle); | ||
| handle->get()->SetInfoLogLevel( | ||
| static_cast<ROCKSDB_NAMESPACE::InfoLogLevel>(jlog_level)); | ||
| } | ||
|
|
||
| /* | ||
| * Class: org_rocksdb_util_StdErrLogger | ||
| * Method: infoLogLevel | ||
| * Signature: (J)B | ||
| */ | ||
| jbyte Java_org_rocksdb_util_StdErrLogger_infoLogLevel(JNIEnv* /*env*/, | ||
| jclass /*jcls*/, | ||
| jlong jhandle) { | ||
| auto* handle = | ||
| reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::StderrLogger>*>( | ||
| jhandle); | ||
| return static_cast<jbyte>(handle->get()->GetInfoLogLevel()); | ||
| } | ||
|
|
||
| /* | ||
| * Class: org_rocksdb_util_StdErrLogger | ||
| * Method: disposeInternal | ||
| * Signature: (J)V | ||
| */ | ||
| void Java_org_rocksdb_util_StdErrLogger_disposeInternal(JNIEnv* /*env*/, | ||
| jobject /*jobj*/, | ||
| jlong jhandle) { | ||
| auto* handle = | ||
| reinterpret_cast<std::shared_ptr<ROCKSDB_NAMESPACE::StderrLogger>*>( | ||
| jhandle); | ||
| delete handle; // delete std::shared_ptr | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.