MyRocks to support both dynamic and static plugins

Upstream commit ID: facebook/mysql-5.6@2a347f6
PS-8755: Merge percona-202301 (https://jira.percona.com/browse/PS-8755)

Summary:
Prior to this diff, fb-mysql MyRocks only supported
static plugins, and used sql_print_* APIs for logging,
which was not available on dynamic plugins.

This diff allows to create either static or dynamic plugins,
depending on -DMYSQL_DYNAMIC_PLUGIN. In addition to that,
adding another option to skip building MyRocks by
-DWITHOUT_ROCKSDB_STORAGE_ENGINE.

Without -DMYSQL_DYNAMIC_PLUGIN, it creates static plugin,
basically the same behavior as before.
With -DMYSQL_DYNAMIC_PLUGIN, it creates dynamic plugin (ha_rocksdb.so).

This diff switched using logging API to LogPluginErrMsg, for both static and dynamic plugins. This slightly changed logging formats, like "[Note] [MY-011071] [Server] Plugin rocksdb reported: 'RocksDB: Column Families at start:'". Prior to the diff, "Plugin rocksdb reported:" was not printed.

Ways to link
with other libraries such as jemalloc are adjusted accordingly.

Reviewed By: lth

Differential Revision: D41313174

fbshipit-source-id: 8a8708b71da379daea13fcae90e3bb1af5d60f32

Author: Yoshinori Matsunobu

mysql-test/suite/rocksdb/r/truncate_failures.result

@@ -89,7 +89,7 @@ pk
 SET DEBUG = "+d,rocksdb_truncate_failure_crash";
 TRUNCATE TABLE t1_crash;
 ERROR HY000: Lost connection to MySQL server during query
- [MY-000000
+1
 DROP TABLE IF EXISTS t1_crash;
 Warnings:
 Warning	1146	Table 'test.t1_crash' doesn't exist

mysql-test/suite/rocksdb/t/rocksdb_datadir.test

@@ -9,6 +9,12 @@ let $rdb_ddir = $MYSQLTEST_VARDIR/.rocksdb_datadir.test;
 let $sql_file = $MYSQLTEST_VARDIR/rocksdb_datadir.sql;
 let $rdb_plugin_load = $ROCKSDB_LOAD_PATH;
 
+let $is_dynamic_plugin = `select plugin_library='ha_rocksdb.so' from information_schema.plugins where plugin_name='RocksDB'`;
+
+if ($is_dynamic_plugin == 1) {
+  --skip "skipping test since bootstrap (initialize) does not support plugin-load."
+}
+
 --write_file $sql_file
 DROP DATABASE IF EXISTS mysqltest;
 CREATE DATABASE mysqltest;

mysql-test/suite/rocksdb/t/truncate_failures.test

@@ -104,7 +104,7 @@ TRUNCATE TABLE t1_crash;
 --enable_reconnect
 --source include/wait_until_connected_again.inc
 --disable_reconnect
---exec grep 'Removing truncated leftover' $LOG | cut -d] -f2
+--exec grep 'Removing truncated leftover' $LOG | wc -l
 DROP TABLE IF EXISTS t1_crash;
 --remove_file $LOG
 

storage/rocksdb/CMakeLists.txt

@@ -1,4 +1,4 @@
-# TODO: Copyrights
+SET (ROCKSDB_DYNAMIC_PLUGIN 1)
 
 # by default MyRocks is not built
 IF (NOT DEFINED WITH_ROCKSDB)
@@ -366,7 +366,7 @@ SET(ROCKSDB_SOURCES
   sql_dd.cc sql_dd.h
 )
 
-IF(WITH_FB_TSAN)
+IF(WITH_FB_TSAN OR ROCKSDB_DYNAMIC_PLUGIN)
   SET(PIC_EXT "_pic")
 ELSE()
   SET(PIC_EXT "")
@@ -381,9 +381,13 @@ IF(NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
   SET(rocksdb_static_libs ${rocksdb_static_libs} "-lrt")
 ENDIF()
 
-MYSQL_ADD_PLUGIN(rocksdb ${ROCKSDB_SOURCES} STORAGE_ENGINE DEFAULT MODULE_ONLY
-  LINK_LIBRARIES ${rocksdb_static_libs}
-)
+IF (ROCKSDB_DYNAMIC_PLUGIN)
+  MYSQL_ADD_PLUGIN(rocksdb ${ROCKSDB_SOURCES} STORAGE_ENGINE DEFAULT
+    MODULE_ONLY LINK_LIBRARIES ${rocksdb_static_libs})
+ELSE()
+  MYSQL_ADD_PLUGIN(rocksdb_se ${ROCKSDB_SOURCES} STORAGE_ENGINE DEFAULT
+    STATIC_ONLY LINK_LIBRARIES ${rocksdb_static_libs})
+ENDIF()
 
 IF (NOT HAVE_EXTERNAL_ROCKSDB)
   # TODO: read this file list from src.mk:TOOL_SOURCES