/** | |
* 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 com.alibaba.jstorm.daemon.nimbus; | |
import backtype.storm.utils.Utils; | |
import com.alibaba.jstorm.cache.JStormCache; | |
import com.alibaba.jstorm.cache.RocksDBCache; | |
import com.alibaba.jstorm.cache.TimeoutMemCache; | |
import com.alibaba.jstorm.client.ConfigExtension; | |
import com.alibaba.jstorm.cluster.StormClusterState; | |
import com.alibaba.jstorm.cluster.StormConfig; | |
import com.alibaba.jstorm.utils.OSInfo; | |
import org.apache.commons.lang.StringUtils; | |
import org.slf4j.Logger; | |
import org.slf4j.LoggerFactory; | |
import java.util.Map; | |
public class NimbusCache { | |
private static final Logger LOG = LoggerFactory.getLogger(NimbusCache.class); | |
public static final String TIMEOUT_MEM_CACHE_CLASS = TimeoutMemCache.class.getName(); | |
public static final String ROCKS_DB_CACHE_CLASS = RocksDBCache.class.getName(); | |
protected JStormCache memCache; | |
protected JStormCache dbCache; | |
protected StormClusterState zkCluster; | |
public String getNimbusCacheClass(Map conf) { | |
boolean isLinux = OSInfo.isLinux(); | |
boolean isMac = OSInfo.isMac(); | |
boolean isLocal = StormConfig.local_mode(conf); | |
if (isLocal == true) { | |
return TIMEOUT_MEM_CACHE_CLASS; | |
} | |
if (isLinux == false && isMac == false) { | |
return TIMEOUT_MEM_CACHE_CLASS; | |
} | |
String nimbusCacheClass = ConfigExtension.getNimbusCacheClass(conf); | |
if (StringUtils.isBlank(nimbusCacheClass) == false) { | |
return nimbusCacheClass; | |
} | |
return ROCKS_DB_CACHE_CLASS; | |
} | |
public NimbusCache(Map conf, StormClusterState zkCluster) { | |
super(); | |
String dbCacheClass = getNimbusCacheClass(conf); | |
LOG.info("NimbusCache db Cache will use {}", dbCacheClass); | |
try { | |
dbCache = (JStormCache) Utils.newInstance(dbCacheClass); | |
String dbDir = StormConfig.masterDbDir(conf); | |
conf.put(RocksDBCache.ROCKSDB_ROOT_DIR, dbDir); | |
conf.put(RocksDBCache.ROCKSDB_RESET, ConfigExtension.getNimbusCacheReset(conf)); | |
dbCache.init(conf); | |
if (dbCache instanceof TimeoutMemCache) { | |
memCache = dbCache; | |
} else { | |
memCache = new TimeoutMemCache(); | |
memCache.init(conf); | |
} | |
} catch (UnsupportedClassVersionError e) { | |
if (e.getMessage().indexOf("Unsupported major.minor version") >= 0) { | |
LOG.error("!!!Please update jdk version to 7 or higher!!!"); | |
} | |
LOG.error("Failed to create NimbusCache!", e); | |
throw new RuntimeException(e); | |
} catch (Exception e) { | |
LOG.error("Failed to create NimbusCache!", e); | |
throw new RuntimeException(e); | |
} | |
this.zkCluster = zkCluster; | |
} | |
public JStormCache getMemCache() { | |
return memCache; | |
} | |
public JStormCache getDbCache() { | |
return dbCache; | |
} | |
public void cleanup() { | |
dbCache.cleanup(); | |
} | |
/** | |
* | |
* In the old design, DBCache will cache all taskInfo/taskErrors, this will be useful for huge topology | |
* | |
* But the latest zk design, taskInfo is only one znode, taskErros has few znode So remove them from DBCache Skip timely refresh taskInfo/taskErrors | |
* | |
*/ | |
} |