95 lines
3.1 KiB
C++
95 lines
3.1 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX STORAGE
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#include "ob_tenant_config_meta_checkpoint_writer.h"
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#include "observer/omt/ob_tenant_node_balancer.h"
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#include "ob_tenant_config_mgr.h"
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using namespace oceanbase::common;
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using namespace oceanbase::blocksstable;
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using namespace oceanbase::storage;
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ObTenantConfigMetaItem::ObTenantConfigMetaItem() : tenant_units_(nullptr), allocator_(ObModIds::OB_CHECKPOINT)
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{}
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int ObTenantConfigMetaItem::serialize(const char*& buf, int64_t& buf_len)
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{
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int ret = OB_SUCCESS;
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if (OB_ISNULL(tenant_units_)) {
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ret = OB_ERR_SYS;
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LOG_WARN("error sys, tenant units must not be null", K(ret));
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} else {
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const int64_t serialize_size = tenant_units_->get_serialize_size();
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char* tmp_buf = nullptr;
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int64_t pos = 0;
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if (OB_ISNULL(tmp_buf = static_cast<char*>(allocator_.alloc(serialize_size)))) {
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ret = OB_ALLOCATE_MEMORY_FAILED;
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LOG_WARN("fail to allocate memory", K(ret));
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} else if (OB_FAIL(tenant_units_->serialize(tmp_buf, serialize_size, pos))) {
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LOG_WARN("fail to serialize tenant units", K(ret));
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} else {
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buf = tmp_buf;
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buf_len = pos;
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}
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}
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return ret;
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}
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void ObTenantConfigMetaItem::set_tenant_units(share::TenantUnits& tenant_units)
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{
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tenant_units_ = &tenant_units;
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}
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ObTenantConfigMetaCheckpointWriter::ObTenantConfigMetaCheckpointWriter() : writer_()
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{}
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int ObTenantConfigMetaCheckpointWriter::write_checkpoint(blocksstable::ObSuperBlockMetaEntry& meta_entry)
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{
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int ret = OB_SUCCESS;
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ObStorageFileHandle& server_root_handle = OB_FILE_SYSTEM.get_server_root_handle();
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reset();
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if (OB_UNLIKELY(!server_root_handle.is_valid())) {
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ret = OB_ERR_SYS;
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LOG_WARN("error sys, server root must not be null", K(ret));
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} else if (OB_FAIL(writer_.init(server_root_handle))) {
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LOG_WARN("fail to init pg meta item writer", K(ret));
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} else {
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share::TenantUnits tenant_units;
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if (OB_FAIL(ObTenantConfigMgr::get_instance().get_tenant_units(tenant_units))) {
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LOG_WARN("fail to load tenant units", K(ret));
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} else {
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ObTenantConfigMetaItem item;
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item.set_tenant_units(tenant_units);
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if (OB_FAIL(writer_.write_item(&item))) {
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LOG_WARN("fail to write item", K(ret));
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} else if (OB_FAIL(writer_.close())) {
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LOG_WARN("fail to close writer", K(ret));
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} else if (OB_FAIL(writer_.get_entry_block_index(meta_entry.macro_block_id_))) {
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LOG_WARN("fail to get entry block index", K(ret));
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}
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}
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}
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return ret;
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}
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void ObTenantConfigMetaCheckpointWriter::reset()
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{
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writer_.reset();
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}
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ObIArray<MacroBlockId>& ObTenantConfigMetaCheckpointWriter::get_meta_block_list()
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{
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return writer_.get_meta_block_list();
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}
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