Examples with BackendConnection io.mycat.backend.BackendConnection used on opensource projects

Example 21 with BackendConnection

use of io.mycat.backend.BackendConnection in project Mycat-Server by MyCATApache.

the class NIOProcessor method backendCheck.

// 后端连接检查
private void backendCheck() {
    long sqlTimeout = MycatServer.getInstance().getConfig().getSystem().getSqlExecuteTimeout() * 1000L;
    Iterator<Entry<Long, BackendConnection>> it = backends.entrySet().iterator();
    while (it.hasNext()) {
        BackendConnection c = it.next().getValue();
        // 删除空连接
        if (c == null) {
            it.remove();
            continue;
        }
        // SQL执行超时的连接关闭
        if (c.isBorrowed() && c.getLastTime() < TimeUtil.currentTimeMillis() - sqlTimeout) {
            LOGGER.warn("found backend connection SQL timeout ,close it " + c);
            c.close("sql timeout");
        }
        // 清理已关闭连接，否则空闲检查。
        if (c.isClosed()) {
            it.remove();
        } else {
            // very important ,for some data maybe not sent
            if (c instanceof AbstractConnection) {
                checkConSendQueue((AbstractConnection) c);
            }
            c.idleCheck();
        }
    }
}

Example 22 with BackendConnection

use of io.mycat.backend.BackendConnection in project Mycat-Server by MyCATApache.

the class NonBlockingSession method closeAndClearResources.

public void closeAndClearResources(String reason) {
    for (BackendConnection node : target.values()) {
        node.close(reason);
    }
    target.clear();
    clearHandlesResources();
}

Example 23 with BackendConnection

use of io.mycat.backend.BackendConnection in project Mycat-Server by MyCATApache.

the class NonBlockingSession method releaseConnection.

public void releaseConnection(RouteResultsetNode rrn, boolean debug, final boolean needRollback) {
    BackendConnection c = target.remove(rrn);
    if (c != null) {
        if (debug) {
            LOGGER.debug("release connection " + c);
        }
        if (c.getAttachment() != null) {
            c.setAttachment(null);
        }
        if (!c.isClosedOrQuit()) {
            if (c.isAutocommit()) {
                c.release();
            } else //if (needRollback)
            {
                c.setResponseHandler(new RollbackReleaseHandler());
                c.rollback();
            }
        //else {
        //	c.release();
        //}
        }
    }
}

Example 24 with BackendConnection

use of io.mycat.backend.BackendConnection in project Mycat-Server by MyCATApache.

the class NonBlockingSession method releaseConnection.

public void releaseConnection(BackendConnection con) {
    Iterator<Entry<RouteResultsetNode, BackendConnection>> itor = target.entrySet().iterator();
    while (itor.hasNext()) {
        BackendConnection theCon = itor.next().getValue();
        if (theCon == con) {
            itor.remove();
            con.release();
            if (LOGGER.isDebugEnabled()) {
                LOGGER.debug("realse connection " + con);
            }
            break;
        }
    }
}

Example 25 with BackendConnection

use of io.mycat.backend.BackendConnection in project Mycat-Server by MyCATApache.

the class NonBlockingSession method commit.

public void commit() {
    final int initCount = target.size();
    if (initCount <= 0) {
        ByteBuffer buffer = source.allocate();
        buffer = source.writeToBuffer(OkPacket.OK, buffer);
        source.write(buffer);
        return;
    } else if (initCount == 1) {
        BackendConnection con = target.elements().nextElement();
        commitHandler.commit(con);
    } else {
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("multi node commit to send ,total " + initCount);
        }
        checkDistriTransaxAndExecute();
    }
}