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thrift_if_impl.h
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thrift_if_impl.h
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/*
* Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
*/
#ifndef DATABASE_CASSANDRA_THRIFT_THRIFT_IF_IMPL_H_
#define DATABASE_CASSANDRA_THRIFT_THRIFT_IF_IMPL_H_
#include <boost/scoped_ptr.hpp>
#include <boost/unordered_map.hpp>
#include <boost/ptr_container/ptr_unordered_map.hpp>
#include <database/cassandra/thrift/gen-cpp/Cassandra.h>
#include <base/queue_task.h>
#include <database/gendb_if.h>
#include <database/gendb_statistics.h>
class ThriftIfImpl {
public:
ThriftIfImpl(GenDb::GenDbIf::DbErrorHandler,
const std::vector<std::string>&,
const std::vector<int>&, std::string name,
bool only_sync, const std::string& cassandra_user,
const std::string& cassandra_password);
ThriftIfImpl();
virtual ~ThriftIfImpl();
// Init/Uninit
virtual bool Db_Init(const std::string& task_id, int task_instance);
virtual void Db_Uninit(const std::string& task_id, int task_instance);
virtual void Db_UninitUnlocked(const std::string& task_id,
int task_instance);
virtual void Db_SetInitDone(bool);
// Tablespace
virtual bool Db_SetTablespace(const std::string& tablespace);
virtual bool Db_AddSetTablespace(const std::string& tablespace,
const std::string& replication_factor = "1");
// Column family
virtual bool Db_AddColumnfamily(const GenDb::NewCf& cf);
virtual bool Db_UseColumnfamily(const GenDb::NewCf& cf);
// Column
virtual bool Db_AddColumn(std::auto_ptr<GenDb::ColList> cl);
virtual bool Db_AddColumnSync(std::auto_ptr<GenDb::ColList> cl);
// Read
virtual bool Db_GetRow(GenDb::ColList *ret, const std::string& cfname,
const GenDb::DbDataValueVec& rowkey);
virtual bool Db_GetMultiRow(GenDb::ColListVec *ret,
const std::string& cfname,
const std::vector<GenDb::DbDataValueVec>& key);
virtual bool Db_GetMultiRow(GenDb::ColListVec *ret,
const std::string& cfname,
const std::vector<GenDb::DbDataValueVec>& key,
const GenDb::ColumnNameRange& crange);
// Queue
virtual bool Db_GetQueueStats(uint64_t *queue_count,
uint64_t *enqueues) const;
virtual void Db_SetQueueWaterMark(bool high, size_t queue_count,
GenDb::GenDbIf::DbQueueWaterMarkCb cb);
virtual void Db_ResetQueueWaterMarks();
// Stats
virtual bool Db_GetStats(std::vector<GenDb::DbTableInfo> *vdbti,
GenDb::DbErrors *dbe);
// Connection
virtual std::vector<GenDb::Endpoint> Db_GetEndpoints() const;
private:
friend class ThriftIfTest;
class InitTask;
class CleanupTask;
struct ThriftIfCfInfo {
ThriftIfCfInfo() {
}
ThriftIfCfInfo(org::apache::cassandra::CfDef *cfdef) {
cfdef_.reset(cfdef);
}
ThriftIfCfInfo(org::apache::cassandra::CfDef *cfdef, GenDb::NewCf *cf) {
cfdef_.reset(cfdef);
cf_.reset(cf);
}
~ThriftIfCfInfo() {
}
std::auto_ptr<org::apache::cassandra::CfDef> cfdef_;
std::auto_ptr<GenDb::NewCf> cf_;
};
typedef boost::ptr_unordered_map<std::string, ThriftIfCfInfo> ThriftIfCfListType;
ThriftIfCfListType ThriftIfCfList;
struct ThriftIfColList {
GenDb::ColList *gendb_cl;
};
// Init/Uninit
bool Db_IsInitDone() const;
// Tablespace
bool Db_AddTablespace(const std::string& tablespace,
const std::string& replication_factor);
bool Db_FindTablespace(const std::string& tablespace);
// Column family
bool Db_Columnfamily_present(const std::string& cfname);
bool Db_GetColumnfamily(ThriftIfCfInfo **info, const std::string& cfname);
bool Db_FindColumnfamily(const std::string& cfname);
// Column
bool Db_AsyncAddColumn(ThriftIfColList &cl);
bool Db_AsyncAddColumnLocked(ThriftIfColList &cl);
void Db_BatchAddColumn(bool done);
bool DB_IsCfSchemaChanged(org::apache::cassandra::CfDef *cfdef,
org::apache::cassandra::CfDef *newcfdef);
// Encode and decode
bool DbDataValueFromString(GenDb::DbDataValue&, const std::string&,
const std::string&, const std::string&);
bool ColListFromColumnOrSuper(GenDb::ColList *,
const std::vector<org::apache::cassandra::ColumnOrSuperColumn>&,
const std::string&);
// Read
static const int kMaxQueryRows = 50;
// Statistics
struct ThriftIfStats {
ThriftIfStats() {
}
struct Errors {
Errors() {
write_tablespace_fails = 0;
read_tablespace_fails = 0;
write_column_family_fails = 0;
read_column_family_fails = 0;
write_column_fails = 0;
write_batch_column_fails = 0;
read_column_fails = 0;
}
void Get(GenDb::DbErrors *db_errors) const;
tbb::atomic<uint64_t> write_tablespace_fails;
tbb::atomic<uint64_t> read_tablespace_fails;
tbb::atomic<uint64_t> write_column_family_fails;
tbb::atomic<uint64_t> read_column_family_fails;
tbb::atomic<uint64_t> write_column_fails;
tbb::atomic<uint64_t> write_batch_column_fails;
tbb::atomic<uint64_t> read_column_fails;
};
enum ErrorType {
THRIFTIF_STATS_ERR_NO_ERROR,
THRIFTIF_STATS_ERR_WRITE_TABLESPACE,
THRIFTIF_STATS_ERR_READ_TABLESPACE,
THRIFTIF_STATS_ERR_WRITE_COLUMN_FAMILY,
THRIFTIF_STATS_ERR_READ_COLUMN_FAMILY,
THRIFTIF_STATS_ERR_WRITE_COLUMN,
THRIFTIF_STATS_ERR_WRITE_BATCH_COLUMN,
THRIFTIF_STATS_ERR_READ_COLUMN,
};
enum CfOp {
THRIFTIF_STATS_CF_OP_NONE,
THRIFTIF_STATS_CF_OP_WRITE,
THRIFTIF_STATS_CF_OP_WRITE_FAIL,
THRIFTIF_STATS_CF_OP_READ,
THRIFTIF_STATS_CF_OP_READ_FAIL,
};
void IncrementErrors(ErrorType type);
void UpdateCf(const std::string &cf_name, bool write, bool fail);
void Get(std::vector<GenDb::DbTableInfo> *vdbti, GenDb::DbErrors *dbe);
GenDb::DbTableStatistics cf_stats_;
Errors db_errors_;
Errors odb_errors_;
};
friend ThriftIfStats::Errors operator+(const ThriftIfStats::Errors &a,
const ThriftIfStats::Errors &b);
friend ThriftIfStats::Errors operator-(const ThriftIfStats::Errors &a,
const ThriftIfStats::Errors &b);
void UpdateCfStats(ThriftIfStats::CfOp op, const std::string &cf_name);
void UpdateCfWriteStats(const std::string &cf_name);
void UpdateCfWriteFailStats(const std::string &cf_name);
void UpdateCfReadStats(const std::string &cf_name);
void UpdateCfReadFailStats(const std::string &cf_name);
static const size_t kQueueSize = 200 * 1024 * 1024; // 200 MB
typedef WorkQueue<ThriftIfColList> ThriftIfQueue;
friend class WorkQueue<ThriftIfColList>;
typedef boost::tuple<bool, size_t, GenDb::GenDbIf::DbQueueWaterMarkCb>
DbQueueWaterMarkInfo;
void Db_SetQueueWaterMarkInternal(ThriftIfQueue *queue,
const std::vector<DbQueueWaterMarkInfo> &vwmi);
void Db_SetQueueWaterMarkInternal(ThriftIfQueue *queue,
const DbQueueWaterMarkInfo &wmi);
bool set_keepalive();
boost::shared_ptr<apache::thrift::transport::TTransport> socket_;
boost::shared_ptr<apache::thrift::transport::TTransport> transport_;
boost::shared_ptr<apache::thrift::protocol::TProtocol> protocol_;
boost::scoped_ptr<org::apache::cassandra::CassandraClient> client_;
GenDb::GenDbIf::DbErrorHandler errhandler_;
tbb::atomic<bool> db_init_done_;
std::string tablespace_;
boost::scoped_ptr<ThriftIfQueue> q_;
std::string name_;
mutable tbb::mutex q_mutex_;
InitTask *init_task_;
CleanupTask *cleanup_task_;
bool only_sync_;
int task_instance_;
int prev_task_instance_;
bool task_instance_initialized_;
typedef std::vector<org::apache::cassandra::Mutation> MutationList;
typedef std::map<std::string, MutationList> CFMutationMap;
typedef std::map<std::string, CFMutationMap> CassandraMutationMap;
CassandraMutationMap mutation_map_;
mutable tbb::mutex smutex_;
ThriftIfStats stats_;
std::vector<DbQueueWaterMarkInfo> q_wm_info_;
std::string cassandra_user_;
std::string cassandra_password_;
// Connection timeout to a server (before moving to next server)
static const int connectionTimeout = 3000;
static const int keepaliveIdleSec = 15;
static const int keepaliveIntvlSec = 3;
static const int keepaliveProbeCount = 5;
static const int tcpUserTimeoutMs = 30000;
};
ThriftIfImpl::ThriftIfStats::Errors operator+(
const ThriftIfImpl::ThriftIfStats::Errors &a,
const ThriftIfImpl::ThriftIfStats::Errors &b);
ThriftIfImpl::ThriftIfStats::Errors operator-(
const ThriftIfImpl::ThriftIfStats::Errors &a,
const ThriftIfImpl::ThriftIfStats::Errors &b);
template<>
size_t ThriftIfImpl::ThriftIfQueue::AtomicIncrementQueueCount(
ThriftIfImpl::ThriftIfColList *entry);
template<>
size_t ThriftIfImpl::ThriftIfQueue::AtomicDecrementQueueCount(
ThriftIfImpl::ThriftIfColList *entry);
template<>
struct WorkQueueDelete<ThriftIfImpl::ThriftIfColList> {
template <typename QueueT>
void operator()(QueueT &q, bool delete_entry) {
ThriftIfImpl::ThriftIfColList colList;
while (q.try_pop(colList)) {
delete colList.gendb_cl;
colList.gendb_cl = NULL;
}
}
};
// Encode and decode
bool DbDataValueVecToString(std::string& res, bool composite,
const GenDb::DbDataValueVec& input);
bool DbDataValueVecFromString(GenDb::DbDataValueVec& res,
const GenDb::DbDataTypeVec& typevec, const std::string& input);
// Composite
std::string DbEncodeStringComposite(const GenDb::DbDataValue &value);
GenDb::DbDataValue DbDecodeStringComposite(const char *input, int &used);
std::string DbEncodeUUIDComposite(const GenDb::DbDataValue &value);
GenDb::DbDataValue DbDecodeUUIDComposite(const char *input, int &used);
std::string DbEncodeDoubleComposite(const GenDb::DbDataValue &value);
GenDb::DbDataValue DbDecodeDoubleComposite(const char *input, int &used);
template <typename T> std::string DbEncodeIntegerComposite(
const GenDb::DbDataValue &value);
template <typename T> GenDb::DbDataValue DbDecodeIntegerComposite(
const char *input, int &used);
// Non composite
std::string DbEncodeStringNonComposite(const GenDb::DbDataValue &value);
GenDb::DbDataValue DbDecodeStringNonComposite(const std::string &input);
std::string DbEncodeUUIDNonComposite(const GenDb::DbDataValue &value);
GenDb::DbDataValue DbDecodeUUIDNonComposite(const std::string &input);
std::string DbEncodeDoubleNonComposite(const GenDb::DbDataValue &value);
GenDb::DbDataValue DbDecodeDoubleNonComposite(const std::string &input);
template <typename T> std::string DbEncodeIntegerNonComposite(
const GenDb::DbDataValue &value);
template <typename T> GenDb::DbDataValue DbDecodeIntegerNonComposite(
const std::string &input);
#endif // DATABASE_CASSANDRA_THRIFT_THRIFT_IF_IMPL_H_