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Merge pull request #473 from jasonhx140/master

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connect mysql server failed when reconnect mysql server frequently
This commit is contained in:
agapple
2018-01-05 18:55:18 +08:00
committed by GitHub
parent 3104b4cc24 0c7aed197a
commit d1f1c0716b
1 changed files with 21 additions and 16 deletions
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37
driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/socket/SocketChannelPool.java
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@@ -54,31 +54,25 @@ public abstract class SocketChannelPool {
} }
public static SocketChannel open(SocketAddress address) throws Exception { public static SocketChannel open(SocketAddress address) throws Exception {
final SocketChannel socket = new SocketChannel(); SocketChannel socket = null;
final BooleanMutex mutex = new BooleanMutex(false); ChannelFuture future = boot.connect(address).sync();
boot.connect(address).addListener(new ChannelFutureListener() {
@Override if (future.isSuccess()) {
public void operationComplete(ChannelFuture arg0) throws Exception { future.channel().pipeline().get(BusinessHandler.class).latch.await();
if (arg0.isSuccess()) { socket = chManager.get(future.channel());
socket.setChannel(arg0.channel()); }
}
mutex.set(true); if (null == socket) {
}
});
// wait for complete
mutex.get();
if (null == socket.getChannel()) {
throw new IOException("can't create socket!"); throw new IOException("can't create socket!");
} }
chManager.put(socket.getChannel(), socket);
return socket; return socket;
} }
public static class BusinessHandler extends ChannelInboundHandlerAdapter { public static class BusinessHandler extends ChannelInboundHandlerAdapter {
private SocketChannel socket = null; private SocketChannel socket = null;
private final CountDownLatch latch = new CountDownLatch(1);
@Override @Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception { public void channelInactive(ChannelHandlerContext ctx) throws Exception {
@@ -86,11 +80,22 @@ public abstract class SocketChannelPool {
chManager.remove(ctx.channel());// 移除 chManager.remove(ctx.channel());// 移除
} }
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
socket = new SocketChannel();
socket.setChannel(ctx.channel());
chManager.put(ctx.channel(), socket);
latch.countDown();
super.channelActive(ctx);
}
@Override @Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
if (null == socket) socket = chManager.get(ctx.channel());
if (socket != null) { if (socket != null) {
socket.writeCache((ByteBuf) msg); socket.writeCache((ByteBuf) msg);
} else {
//TODO: need graceful error handler.
logger.error("no socket available.");
} }
ReferenceCountUtil.release(msg);// 添加防止内存泄漏的 ReferenceCountUtil.release(msg);// 添加防止内存泄漏的
} }