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From rhtyd <...@git.apache.org>
Subject [GitHub] cloudstack pull request: CLOUDSTACK-9299: Out-of-band Management f...
Date Tue, 03 May 2016 07:16:19 GMT
Github user rhtyd commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/1502#discussion_r61845251
  
    --- Diff: engine/schema/src/org/apache/cloudstack/outofbandmanagement/dao/OutOfBandManagementDaoImpl.java
---
    @@ -0,0 +1,163 @@
    +// Licensed to the Apache Software Foundation (ASF) under one
    +// or more contributor license agreements.  See the NOTICE file
    +// distributed with this work for additional information
    +// regarding copyright ownership.  The ASF licenses this file
    +// to you under the Apache License, Version 2.0 (the
    +// "License"); you may not use this file except in compliance
    +// with the License.  You may obtain a copy of the License at
    +//
    +//   http://www.apache.org/licenses/LICENSE-2.0
    +//
    +// Unless required by applicable law or agreed to in writing,
    +// software distributed under the License is distributed on an
    +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    +// KIND, either express or implied.  See the License for the
    +// specific language governing permissions and limitations
    +// under the License.
    +
    +package org.apache.cloudstack.outofbandmanagement.dao;
    +
    +import com.cloud.utils.DateUtil;
    +import com.cloud.utils.db.Attribute;
    +import com.cloud.utils.db.DB;
    +import com.cloud.utils.db.Filter;
    +import com.cloud.utils.db.GenericDaoBase;
    +import com.cloud.utils.db.SearchBuilder;
    +import com.cloud.utils.db.SearchCriteria;
    +import com.cloud.utils.db.TransactionLegacy;
    +import com.cloud.utils.db.UpdateBuilder;
    +import com.cloud.utils.exception.CloudRuntimeException;
    +import org.apache.cloudstack.outofbandmanagement.OutOfBandManagement;
    +import org.apache.cloudstack.outofbandmanagement.OutOfBandManagementVO;
    +import org.apache.log4j.Logger;
    +import org.springframework.stereotype.Component;
    +
    +import javax.ejb.Local;
    +import java.sql.PreparedStatement;
    +import java.sql.SQLException;
    +import java.util.List;
    +
    +@DB
    +@Component
    +@Local(value = {OutOfBandManagementDao.class})
    +public class OutOfBandManagementDaoImpl extends GenericDaoBase<OutOfBandManagementVO,
Long> implements OutOfBandManagementDao {
    +    private static final Logger LOG = Logger.getLogger(OutOfBandManagementDaoImpl.class);
    +
    +    private SearchBuilder<OutOfBandManagementVO> HostSearch;
    +    private SearchBuilder<OutOfBandManagementVO> ManagementServerSearch;
    +    private SearchBuilder<OutOfBandManagementVO> OutOfBandManagementOwnerSearch;
    +    private SearchBuilder<OutOfBandManagementVO> StateUpdateSearch;
    +
    +    private Attribute PowerStateAttr;
    +    private Attribute MsIdAttr;
    +    private Attribute UpdateTimeAttr;
    +
    +    public OutOfBandManagementDaoImpl() {
    +        super();
    +
    +        HostSearch = createSearchBuilder();
    +        HostSearch.and("hostId", HostSearch.entity().getHostId(), SearchCriteria.Op.EQ);
    +        HostSearch.done();
    +
    +        ManagementServerSearch = createSearchBuilder();
    +        ManagementServerSearch.and("server", ManagementServerSearch.entity().getManagementServerId(),
SearchCriteria.Op.EQ);
    +        ManagementServerSearch.done();
    +
    +        OutOfBandManagementOwnerSearch = createSearchBuilder();
    +        OutOfBandManagementOwnerSearch.and("server", OutOfBandManagementOwnerSearch.entity().getManagementServerId(),
SearchCriteria.Op.EQ);
    +        OutOfBandManagementOwnerSearch.or("serverNull", OutOfBandManagementOwnerSearch.entity().getManagementServerId(),
SearchCriteria.Op.NULL);
    +        OutOfBandManagementOwnerSearch.done();
    +
    +        StateUpdateSearch = createSearchBuilder();
    +        StateUpdateSearch.and("status", StateUpdateSearch.entity().getPowerState(), SearchCriteria.Op.EQ);
    +        StateUpdateSearch.and("id", StateUpdateSearch.entity().getId(), SearchCriteria.Op.EQ);
    +        StateUpdateSearch.and("update", StateUpdateSearch.entity().getUpdateCount(),
SearchCriteria.Op.EQ);
    +        StateUpdateSearch.done();
    +
    +        PowerStateAttr = _allAttributes.get("powerState");
    +        MsIdAttr = _allAttributes.get("managementServerId");
    +        UpdateTimeAttr = _allAttributes.get("updateTime");
    +        assert (PowerStateAttr != null && MsIdAttr != null && UpdateTimeAttr
!= null) : "Couldn't find one of these attributes";
    +    }
    +
    +    @Override
    +    public OutOfBandManagement findByHost(long hostId) {
    +        SearchCriteria<OutOfBandManagementVO> sc = HostSearch.create("hostId",
hostId);
    +        return findOneBy(sc);
    +    }
    +
    +    @Override
    +    public List<OutOfBandManagementVO> findAllByManagementServer(long serverId)
{
    +        SearchCriteria<OutOfBandManagementVO> sc = OutOfBandManagementOwnerSearch.create();
    +        sc.setParameters("server", serverId);
    +        return listBy(sc, new Filter(OutOfBandManagementVO.class, "updateTime", true,
null, null));
    +    }
    +
    +    private void executeExpireOwnershipSql(final String sql, long resource) {
    +        TransactionLegacy txn = TransactionLegacy.currentTxn();
    +        try {
    +            txn.start();
    +            PreparedStatement pstmt = txn.prepareAutoCloseStatement(sql);
    +            pstmt.setLong(1, resource);
    +            pstmt.executeUpdate();
    +            txn.commit();
    +        } catch (SQLException e) {
    +            txn.rollback();
    +            throw new CloudRuntimeException("Unable to reset out-of-band management ownership
based on resource:" + resource);
    +        }
    +    }
    +
    +    @Override
    +    public void expireOutOfBandManagementOwnershipByHours(long hours) {
    +        final String resetOwnerSql = "UPDATE oobm set mgmt_server_id=NULL where update_time<=
(NOW() - INTERVAL ? HOUR)";
    +        executeExpireOwnershipSql(resetOwnerSql, hours);
    +    }
    +
    +    @Override
    +    public void expireOutOfBandManagementOwnershipByServer(long serverId) {
    +        final String resetOwnerSql = "UPDATE oobm set mgmt_server_id=NULL, power_state=NULL
where mgmt_server_id=?";
    +        executeExpireOwnershipSql(resetOwnerSql, serverId);
    +        if (LOG.isDebugEnabled()) {
    +            LOG.debug("Expired out-of-band management ownership for hosts owned by management
server id:" + serverId);
    +        }
    +    }
    +
    +    @Override
    +    public boolean updateState(OutOfBandManagement.PowerState oldStatus, OutOfBandManagement.PowerState.Event
event, OutOfBandManagement.PowerState newStatus, OutOfBandManagement vo, Object data) {
    +        // lock target row from beginning to avoid lock-promotion caused deadlock
    +        OutOfBandManagementVO oobmHost = lockRow(vo.getId(), true);
    +        if (oobmHost == null) {
    +            if (LOG.isTraceEnabled()) {
    +                LOG.trace("Failed to lock row to update state for out-of-band management
host id: " + vo.getHostId());
    +            }
    +            return false;
    +        }
    +
    +        Long newManagementServerId = event.getServerId();
    +        // Avoid updates when old ownership and state are same as new
    +        if (oldStatus == newStatus && (oobmHost.getManagementServerId() != null
&& oobmHost.getManagementServerId().equals(newManagementServerId))) {
    +            return false;
    +        }
    +
    +        if (event == OutOfBandManagement.PowerState.Event.Disabled) {
    +            newManagementServerId = null;
    +        }
    +
    +        SearchCriteria<OutOfBandManagementVO> sc = StateUpdateSearch.create();
    +        sc.setParameters("status", oldStatus);
    +        sc.setParameters("id", oobmHost.getId());
    +        sc.setParameters("update", oobmHost.getUpdateCount());
    +
    +        oobmHost.incrUpdateCount();
    +        UpdateBuilder ub = getUpdateBuilder(oobmHost);
    +        ub.set(oobmHost, PowerStateAttr, newStatus);
    +        ub.set(oobmHost, UpdateTimeAttr, DateUtil.currentGMTTime());
    +        ub.set(oobmHost, MsIdAttr, newManagementServerId);
    +
    +        int result = update(ub, sc, null);
    +        if (LOG.isDebugEnabled() && result <= 0) {
    +            LOG.debug(String.format("Failed to update out-of-band management power state
from:%s to:%s due to event:%s for the host id:%d", oldStatus, newStatus, event, oobmHost.getHostId()));
    --- End diff --
    
    It is triggered by background sync thread, I've avoided to use WARN to spam the logs file
in case of large prod. In case of frequent updates this can cause a lot of log entries, and
when states are same.


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