Examples with BackendConnection com.actiontech.dble.backend.BackendConnection used on opensource projects

Example 11 with BackendConnection

use of com.actiontech.dble.backend.BackendConnection in project dble by actiontech.

the class PhysicalDBPool method initSource.

private boolean initSource(int index, PhysicalDatasource ds) {
    int initSize = ds.getConfig().getMinCon();
    LOGGER.info("init backend mysql source ,create connections total " + initSize + " for " + ds.getName() + " index :" + index);
    CopyOnWriteArrayList<BackendConnection> list = new CopyOnWriteArrayList<>();
    GetConnectionHandler getConHandler = new GetConnectionHandler(list, initSize);
    for (int i = 0; i < initSize; i++) {
        try {
            ds.initMinConnection(this.schemas[i % schemas.length], true, getConHandler, null);
        } catch (Exception e) {
            LOGGER.info(getMessage(index, " init connection error."), e);
        }
    }
    long timeOut = System.currentTimeMillis() + 60 * 1000;
    // waiting for finish
    while (!getConHandler.finished() && (System.currentTimeMillis() < timeOut)) {
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
            /**
             * hardly triggered no error is needed
             */
            LOGGER.info("initError", e);
        }
    }
    LOGGER.info("init result :" + getConHandler.getStatusInfo());
    return !list.isEmpty();
}

Example 12 with BackendConnection

use of com.actiontech.dble.backend.BackendConnection in project dble by actiontech.

the class NIOProcessor method backendCheck.

private void backendCheck() {
    long sqlTimeout = DbleServer.getInstance().getConfig().getSystem().getSqlExecuteTimeout() * 1000L;
    Iterator<Entry<Long, BackendConnection>> it = backends.entrySet().iterator();
    while (it.hasNext()) {
        BackendConnection c = it.next().getValue();
        // remove empty
        if (c == null) {
            it.remove();
            continue;
        }
        // Active/IDLE/PREPARED XA backends will not be checked
        if (c instanceof MySQLConnection) {
            MySQLConnection m = (MySQLConnection) c;
            if (m.isClosedOrQuit()) {
                it.remove();
                continue;
            }
            if (m.getXaStatus() != null && m.getXaStatus() != TxState.TX_INITIALIZE_STATE) {
                continue;
            }
        }
        // close the conn which executeTimeOut
        if (!c.isDDL() && c.isBorrowed() && c.getLastTime() < TimeUtil.currentTimeMillis() - sqlTimeout) {
            LOGGER.info("found backend connection SQL timeout ,close it " + c);
            c.close("sql timeout");
        }
        // clean closed conn or check time out
        if (c.isClosed()) {
            it.remove();
        } else {
            // very important ,for some data maybe not sent
            if (c instanceof AbstractConnection) {
                checkConSendQueue((AbstractConnection) c);
            }
            c.idleCheck();
        }
    }
}

Example 13 with BackendConnection

use of com.actiontech.dble.backend.BackendConnection in project dble by actiontech.

the class NonBlockingSession method initiativeTerminate.

/**
 * Only used when kill @@connection is Issued
 */
void initiativeTerminate() {
    for (BackendConnection node : target.values()) {
        node.terminate("client closed ");
    }
    target.clear();
    clearHandlesResources();
}

Example 14 with BackendConnection

use of com.actiontech.dble.backend.BackendConnection in project dble by actiontech.

the class NonBlockingSession method closeAndClearResources.

public void closeAndClearResources(String reason) {
    // XA MUST BE FINISHED
    if (source.isTxStart() && this.getXaState() != null && this.getXaState() != TxState.TX_INITIALIZE_STATE) {
        return;
    }
    for (BackendConnection node : target.values()) {
        node.terminate(reason);
    }
    target.clear();
    clearHandlesResources();
}

Example 15 with BackendConnection

use of com.actiontech.dble.backend.BackendConnection in project dble by actiontech.

the class NonBlockingSession method releaseConnection.

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