@Override
public int compare(DiscoveryNode o1, DiscoveryNode o2) {
if (o1.masterNode() && !o2.masterNode()) {
return -1;
}
if (!o1.masterNode() && o2.masterNode()) {
return 1;
}
return o1.id().compareTo(o2.id());
}
@Inject
public LocalGatewayMetaState(
Settings settings,
ThreadPool threadPool,
NodeEnvironment nodeEnv,
TransportNodesListGatewayMetaState nodesListGatewayMetaState,
LocalAllocateDangledIndices allocateDangledIndices,
NodeIndexDeletedAction nodeIndexDeletedAction)
throws Exception {
super(settings);
this.nodeEnv = nodeEnv;
this.threadPool = threadPool;
this.format = XContentType.fromRestContentType(settings.get("format", "smile"));
this.allocateDangledIndices = allocateDangledIndices;
this.nodeIndexDeletedAction = nodeIndexDeletedAction;
nodesListGatewayMetaState.init(this);
if (this.format == XContentType.SMILE) {
Map<String, String> params = Maps.newHashMap();
params.put("binary", "true");
formatParams = new ToXContent.MapParams(params);
Map<String, String> globalOnlyParams = Maps.newHashMap();
globalOnlyParams.put("binary", "true");
globalOnlyParams.put(MetaData.PERSISTENT_ONLY_PARAM, "true");
globalOnlyParams.put(MetaData.GLOBAL_ONLY_PARAM, "true");
globalOnlyFormatParams = new ToXContent.MapParams(globalOnlyParams);
} else {
formatParams = ToXContent.EMPTY_PARAMS;
Map<String, String> globalOnlyParams = Maps.newHashMap();
globalOnlyParams.put(MetaData.PERSISTENT_ONLY_PARAM, "true");
globalOnlyParams.put(MetaData.GLOBAL_ONLY_PARAM, "true");
globalOnlyFormatParams = new ToXContent.MapParams(globalOnlyParams);
}
this.autoImportDangled =
AutoImportDangledState.fromString(
settings.get(
"gateway.local.auto_import_dangled", AutoImportDangledState.YES.toString()));
this.danglingTimeout =
settings.getAsTime("gateway.local.dangling_timeout", TimeValue.timeValueHours(2));
logger.debug(
"using gateway.local.auto_import_dangled [{}], with gateway.local.dangling_timeout [{}]",
this.autoImportDangled,
this.danglingTimeout);
if (DiscoveryNode.masterNode(settings)) {
try {
pre019Upgrade();
long start = System.currentTimeMillis();
loadState();
logger.debug(
"took {} to load state", TimeValue.timeValueMillis(System.currentTimeMillis() - start));
} catch (Exception e) {
logger.error("failed to read local state, exiting...", e);
throw e;
}
}
}
public boolean hasEnoughMasterNodes(Iterable<DiscoveryNode> nodes) {
if (minimumMasterNodes < 1) {
return true;
}
int count = 0;
for (DiscoveryNode node : nodes) {
if (node.masterNode()) {
count++;
}
}
return count >= minimumMasterNodes;
}
public void addNodeInfo(NodeInfo nodeInfo) {
total++;
DiscoveryNode node = nodeInfo.getNode();
if (node.masterNode()) {
if (node.dataNode()) {
masterData++;
} else {
masterOnly++;
}
} else if (node.dataNode()) {
dataOnly++;
} else if (node.clientNode()) {
client++;
}
}
private List<DiscoveryNode> sortedMasterNodes(Iterable<DiscoveryNode> nodes) {
List<DiscoveryNode> possibleNodes = CollectionUtils.iterableAsArrayList(nodes);
if (possibleNodes.isEmpty()) {
return null;
}
// clean non master nodes
for (Iterator<DiscoveryNode> it = possibleNodes.iterator(); it.hasNext(); ) {
DiscoveryNode node = it.next();
if (!node.masterNode()) {
it.remove();
}
}
CollectionUtil.introSort(possibleNodes, nodeComparator);
return possibleNodes;
}
private Table buildTable(
RestRequest req,
ClusterStateResponse state,
NodesInfoResponse nodesInfo,
NodesStatsResponse nodesStats) {
boolean fullId = req.paramAsBoolean("full_id", false);
DiscoveryNodes nodes = state.getState().nodes();
String masterId = nodes.masterNodeId();
Table table = getTableWithHeader(req);
for (DiscoveryNode node : nodes) {
NodeInfo info = nodesInfo.getNodesMap().get(node.id());
NodeStats stats = nodesStats.getNodesMap().get(node.id());
JvmInfo jvmInfo = info == null ? null : info.getJvm();
JvmStats jvmStats = stats == null ? null : stats.getJvm();
FsInfo fsInfo = stats == null ? null : stats.getFs();
OsStats osStats = stats == null ? null : stats.getOs();
ProcessStats processStats = stats == null ? null : stats.getProcess();
NodeIndicesStats indicesStats = stats == null ? null : stats.getIndices();
table.startRow();
table.addCell(fullId ? node.id() : Strings.substring(node.getId(), 0, 4));
table.addCell(info == null ? null : info.getProcess().getId());
table.addCell(node.getHostName());
table.addCell(node.getHostAddress());
if (node.address() instanceof InetSocketTransportAddress) {
table.addCell(((InetSocketTransportAddress) node.address()).address().getPort());
} else {
table.addCell("-");
}
table.addCell(node.getVersion().number());
table.addCell(info == null ? null : info.getBuild().shortHash());
table.addCell(jvmInfo == null ? null : jvmInfo.version());
table.addCell(fsInfo == null ? null : fsInfo.getTotal().getAvailable());
table.addCell(jvmStats == null ? null : jvmStats.getMem().getHeapUsed());
table.addCell(jvmStats == null ? null : jvmStats.getMem().getHeapUsedPercent());
table.addCell(jvmInfo == null ? null : jvmInfo.getMem().getHeapMax());
table.addCell(
osStats == null ? null : osStats.getMem() == null ? null : osStats.getMem().getUsed());
table.addCell(
osStats == null
? null
: osStats.getMem() == null ? null : osStats.getMem().getUsedPercent());
table.addCell(
osStats == null ? null : osStats.getMem() == null ? null : osStats.getMem().getTotal());
table.addCell(processStats == null ? null : processStats.getOpenFileDescriptors());
table.addCell(
processStats == null
? null
: calculatePercentage(
processStats.getOpenFileDescriptors(), processStats.getMaxFileDescriptors()));
table.addCell(processStats == null ? null : processStats.getMaxFileDescriptors());
table.addCell(
osStats == null ? null : String.format(Locale.ROOT, "%.2f", osStats.getLoadAverage()));
table.addCell(jvmStats == null ? null : jvmStats.getUptime());
table.addCell(node.clientNode() ? "c" : node.dataNode() ? "d" : "-");
table.addCell(
masterId == null
? "x"
: masterId.equals(node.id()) ? "*" : node.masterNode() ? "m" : "-");
table.addCell(node.name());
CompletionStats completionStats =
indicesStats == null ? null : stats.getIndices().getCompletion();
table.addCell(completionStats == null ? null : completionStats.getSize());
FieldDataStats fdStats = indicesStats == null ? null : stats.getIndices().getFieldData();
table.addCell(fdStats == null ? null : fdStats.getMemorySize());
table.addCell(fdStats == null ? null : fdStats.getEvictions());
QueryCacheStats fcStats = indicesStats == null ? null : indicesStats.getQueryCache();
table.addCell(fcStats == null ? null : fcStats.getMemorySize());
table.addCell(fcStats == null ? null : fcStats.getEvictions());
RequestCacheStats qcStats = indicesStats == null ? null : indicesStats.getRequestCache();
table.addCell(qcStats == null ? null : qcStats.getMemorySize());
table.addCell(qcStats == null ? null : qcStats.getEvictions());
table.addCell(qcStats == null ? null : qcStats.getHitCount());
table.addCell(qcStats == null ? null : qcStats.getMissCount());
FlushStats flushStats = indicesStats == null ? null : indicesStats.getFlush();
table.addCell(flushStats == null ? null : flushStats.getTotal());
table.addCell(flushStats == null ? null : flushStats.getTotalTime());
GetStats getStats = indicesStats == null ? null : indicesStats.getGet();
table.addCell(getStats == null ? null : getStats.current());
table.addCell(getStats == null ? null : getStats.getTime());
table.addCell(getStats == null ? null : getStats.getCount());
table.addCell(getStats == null ? null : getStats.getExistsTime());
table.addCell(getStats == null ? null : getStats.getExistsCount());
table.addCell(getStats == null ? null : getStats.getMissingTime());
table.addCell(getStats == null ? null : getStats.getMissingCount());
IndexingStats indexingStats = indicesStats == null ? null : indicesStats.getIndexing();
table.addCell(indexingStats == null ? null : indexingStats.getTotal().getDeleteCurrent());
table.addCell(indexingStats == null ? null : indexingStats.getTotal().getDeleteTime());
table.addCell(indexingStats == null ? null : indexingStats.getTotal().getDeleteCount());
table.addCell(indexingStats == null ? null : indexingStats.getTotal().getIndexCurrent());
table.addCell(indexingStats == null ? null : indexingStats.getTotal().getIndexTime());
table.addCell(indexingStats == null ? null : indexingStats.getTotal().getIndexCount());
table.addCell(indexingStats == null ? null : indexingStats.getTotal().getIndexFailedCount());
MergeStats mergeStats = indicesStats == null ? null : indicesStats.getMerge();
table.addCell(mergeStats == null ? null : mergeStats.getCurrent());
table.addCell(mergeStats == null ? null : mergeStats.getCurrentNumDocs());
table.addCell(mergeStats == null ? null : mergeStats.getCurrentSize());
table.addCell(mergeStats == null ? null : mergeStats.getTotal());
table.addCell(mergeStats == null ? null : mergeStats.getTotalNumDocs());
table.addCell(mergeStats == null ? null : mergeStats.getTotalSize());
table.addCell(mergeStats == null ? null : mergeStats.getTotalTime());
PercolateStats percolateStats = indicesStats == null ? null : indicesStats.getPercolate();
table.addCell(percolateStats == null ? null : percolateStats.getCurrent());
table.addCell(percolateStats == null ? null : percolateStats.getMemorySize());
table.addCell(percolateStats == null ? null : percolateStats.getNumQueries());
table.addCell(percolateStats == null ? null : percolateStats.getTime());
table.addCell(percolateStats == null ? null : percolateStats.getCount());
RefreshStats refreshStats = indicesStats == null ? null : indicesStats.getRefresh();
table.addCell(refreshStats == null ? null : refreshStats.getTotal());
table.addCell(refreshStats == null ? null : refreshStats.getTotalTime());
ScriptStats scriptStats = stats == null ? null : stats.getScriptStats();
table.addCell(scriptStats == null ? null : scriptStats.getCompilations());
table.addCell(scriptStats == null ? null : scriptStats.getCacheEvictions());
SearchStats searchStats = indicesStats == null ? null : indicesStats.getSearch();
table.addCell(searchStats == null ? null : searchStats.getTotal().getFetchCurrent());
table.addCell(searchStats == null ? null : searchStats.getTotal().getFetchTime());
table.addCell(searchStats == null ? null : searchStats.getTotal().getFetchCount());
table.addCell(searchStats == null ? null : searchStats.getOpenContexts());
table.addCell(searchStats == null ? null : searchStats.getTotal().getQueryCurrent());
table.addCell(searchStats == null ? null : searchStats.getTotal().getQueryTime());
table.addCell(searchStats == null ? null : searchStats.getTotal().getQueryCount());
table.addCell(searchStats == null ? null : searchStats.getTotal().getScrollCurrent());
table.addCell(searchStats == null ? null : searchStats.getTotal().getScrollTime());
table.addCell(searchStats == null ? null : searchStats.getTotal().getScrollCount());
SegmentsStats segmentsStats = indicesStats == null ? null : indicesStats.getSegments();
table.addCell(segmentsStats == null ? null : segmentsStats.getCount());
table.addCell(segmentsStats == null ? null : segmentsStats.getMemory());
table.addCell(segmentsStats == null ? null : segmentsStats.getIndexWriterMemory());
table.addCell(segmentsStats == null ? null : segmentsStats.getIndexWriterMaxMemory());
table.addCell(segmentsStats == null ? null : segmentsStats.getVersionMapMemory());
table.addCell(segmentsStats == null ? null : segmentsStats.getBitsetMemory());
SuggestStats suggestStats = indicesStats == null ? null : indicesStats.getSuggest();
table.addCell(suggestStats == null ? null : suggestStats.getCurrent());
table.addCell(suggestStats == null ? null : suggestStats.getTime());
table.addCell(suggestStats == null ? null : suggestStats.getCount());
table.endRow();
}
return table;
}
private DiscoveryNode findMaster() {
ZenPing.PingResponse[] fullPingResponses = pingService.pingAndWait(pingTimeout);
if (fullPingResponses == null) {
logger.trace("No full ping responses");
return null;
}
if (logger.isTraceEnabled()) {
StringBuilder sb = new StringBuilder("full ping responses:");
if (fullPingResponses.length == 0) {
sb.append(" {none}");
} else {
for (ZenPing.PingResponse pingResponse : fullPingResponses) {
sb.append("\n\t--> ")
.append("target [")
.append(pingResponse.target())
.append("], master [")
.append(pingResponse.master())
.append("]");
}
}
logger.trace(sb.toString());
}
// filter responses
List<ZenPing.PingResponse> pingResponses = Lists.newArrayList();
for (ZenPing.PingResponse pingResponse : fullPingResponses) {
DiscoveryNode node = pingResponse.target();
if (masterElectionFilterClientNodes
&& (node.clientNode() || (!node.masterNode() && !node.dataNode()))) {
// filter out the client node, which is a client node, or also one that is not data and not
// master (effectively, client)
} else if (masterElectionFilterDataNodes && (!node.masterNode() && node.dataNode())) {
// filter out data node that is not also master
} else {
pingResponses.add(pingResponse);
}
}
if (logger.isDebugEnabled()) {
StringBuilder sb =
new StringBuilder("filtered ping responses: (filter_client[")
.append(masterElectionFilterClientNodes)
.append("], filter_data[")
.append(masterElectionFilterDataNodes)
.append("])");
if (pingResponses.isEmpty()) {
sb.append(" {none}");
} else {
for (ZenPing.PingResponse pingResponse : pingResponses) {
sb.append("\n\t--> ")
.append("target [")
.append(pingResponse.target())
.append("], master [")
.append(pingResponse.master())
.append("]");
}
}
logger.debug(sb.toString());
}
List<DiscoveryNode> pingMasters = newArrayList();
for (ZenPing.PingResponse pingResponse : pingResponses) {
if (pingResponse.master() != null) {
pingMasters.add(pingResponse.master());
}
}
Set<DiscoveryNode> possibleMasterNodes = Sets.newHashSet();
possibleMasterNodes.add(localNode);
for (ZenPing.PingResponse pingResponse : pingResponses) {
possibleMasterNodes.add(pingResponse.target());
}
// if we don't have enough master nodes, we bail, even if we get a response that indicates
// there is a master by other node, we don't see enough...
if (!electMaster.hasEnoughMasterNodes(possibleMasterNodes)) {
return null;
}
if (pingMasters.isEmpty()) {
// lets tie break between discovered nodes
DiscoveryNode electedMaster = electMaster.electMaster(possibleMasterNodes);
if (localNode.equals(electedMaster)) {
return localNode;
}
} else {
DiscoveryNode electedMaster = electMaster.electMaster(pingMasters);
if (electedMaster != null) {
return electedMaster;
}
}
return null;
}
