com.pingcap.tikv.txn

类 LockResolverClientV3

java.lang.Object

com.pingcap.tikv.AbstractGRPCClient<TikvGrpc.TikvBlockingStub,TikvGrpc.TikvStub>

com.pingcap.tikv.region.AbstractRegionStoreClient

com.pingcap.tikv.txn.LockResolverClientV3

所有已实现的接口:

RegionErrorReceiver, AbstractLockResolverClient, AutoCloseable

public class LockResolverClientV3
extends AbstractRegionStoreClient
implements AbstractLockResolverClient

Since v3.0.5 TiDB ignores the ttl on secondary lock and will use the ttl on primary key.

字段概要

从类继承的字段 com.pingcap.tikv.region.AbstractRegionStoreClient

region, regionManager

从类继承的字段 com.pingcap.tikv.AbstractGRPCClient

asyncStub, blockingStub, channelFactory, conf, timeout

从接口继承的字段 com.pingcap.tikv.txn.AbstractLockResolverClient

BIG_TXN_THRESHOLD, RESOLVED_TXN_CACHE_SIZE

构造器概要

构造器

构造器和说明
LockResolverClientV3(TiConfiguration conf, TiRegion region, TikvGrpc.TikvBlockingStub blockingStub, TikvGrpc.TikvStub asyncStub, ChannelFactory channelFactory, RegionManager regionManager, PDClient pdClient, RegionStoreClient.RegionStoreClientBuilder clientBuilder)

方法概要

限定符和类型	方法和说明
String	getVersion()
ResolveLockResult	resolveLocks(BackOffer bo, long callerStartTS, List<Lock> locks, boolean forWrite) ResolveLocks tries to resolve Locks.

从类继承的方法 com.pingcap.tikv.region.AbstractRegionStoreClient

close, getAsyncStub, getBlockingStub, getRegion, onNotLeader, onStoreNotMatch

从类继承的方法 com.pingcap.tikv.AbstractGRPCClient

callAsyncWithRetry, callServerStreamingWithRetry, callWithRetry, checkHealth, getConf, getTimeout

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 com.pingcap.tikv.txn.AbstractLockResolverClient

extractLockFromKeyErr, getInstance

构造器详细资料

LockResolverClientV3

public LockResolverClientV3(TiConfiguration conf,
                            TiRegion region,
                            TikvGrpc.TikvBlockingStub blockingStub,
                            TikvGrpc.TikvStub asyncStub,
                            ChannelFactory channelFactory,
                            RegionManager regionManager,
                            PDClient pdClient,
                            RegionStoreClient.RegionStoreClientBuilder clientBuilder)

方法详细资料

getVersion

public String getVersion()

指定者:

getVersion 在接口中 AbstractLockResolverClient

resolveLocks

public ResolveLockResult resolveLocks(BackOffer bo,
                                      long callerStartTS,
                                      List<Lock> locks,
                                      boolean forWrite)

从接口复制的说明: AbstractLockResolverClient

ResolveLocks tries to resolve Locks. The resolving process is in 3 steps: 1) Use the `lockTTL` to pick up all expired locks. Only locks that are old enough are considered orphan locks and will be handled later. If all locks are expired then all locks will be resolved so true will be returned, otherwise caller should sleep a while before retry. 2) For each lock, query the primary key to get txn(which left the lock)'s commit status. 3) Send `ResolveLock` cmd to the lock's region to resolve all locks belong to the same transaction.

指定者:

resolveLocks 在接口中 AbstractLockResolverClient

返回:

msBeforeTxnExpired: 0 means all locks are resolved