@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.field(Fields.STATUS, getStatus().name().toLowerCase(Locale.ROOT));
builder.field(Fields.NUMBER_OF_SHARDS, getNumberOfShards());
builder.field(Fields.NUMBER_OF_REPLICAS, getNumberOfReplicas());
builder.field(Fields.ACTIVE_PRIMARY_SHARDS, getActivePrimaryShards());
builder.field(Fields.ACTIVE_SHARDS, getActiveShards());
builder.field(Fields.RELOCATING_SHARDS, getRelocatingShards());
builder.field(Fields.INITIALIZING_SHARDS, getInitializingShards());
builder.field(Fields.UNASSIGNED_SHARDS, getUnassignedShards());
if (!getValidationFailures().isEmpty()) {
builder.startArray(Fields.VALIDATION_FAILURES);
for (String validationFailure : getValidationFailures()) {
builder.value(validationFailure);
}
builder.endArray();
}
if ("shards".equals(params.param("level", "indices"))) {
builder.startObject(Fields.SHARDS);
for (ClusterShardHealth shardHealth : shards.values()) {
builder.startObject(Integer.toString(shardHealth.getId()));
builder.field(Fields.STATUS, shardHealth.getStatus().name().toLowerCase(Locale.ROOT));
builder.field(Fields.PRIMARY_ACTIVE, shardHealth.isPrimaryActive());
builder.field(Fields.ACTIVE_SHARDS, shardHealth.getActiveShards());
builder.field(Fields.RELOCATING_SHARDS, shardHealth.getRelocatingShards());
builder.field(Fields.INITIALIZING_SHARDS, shardHealth.getInitializingShards());
builder.field(Fields.UNASSIGNED_SHARDS, shardHealth.getUnassignedShards());
builder.endObject();
}
builder.endObject();
}
return builder;
}
public ClusterIndexHealth(IndexMetaData indexMetaData, IndexRoutingTable indexRoutingTable) {
this.index = indexMetaData.index();
this.numberOfShards = indexMetaData.getNumberOfShards();
this.numberOfReplicas = indexMetaData.getNumberOfReplicas();
this.validationFailures = indexRoutingTable.validate(indexMetaData);
for (IndexShardRoutingTable shardRoutingTable : indexRoutingTable) {
ClusterShardHealth shardHealth = new ClusterShardHealth(shardRoutingTable.shardId().id());
for (ShardRouting shardRouting : shardRoutingTable) {
if (shardRouting.active()) {
shardHealth.activeShards++;
if (shardRouting.relocating()) {
// the shard is relocating, the one it is relocating to will be in initializing state,
// so we don't count it
shardHealth.relocatingShards++;
}
if (shardRouting.primary()) {
shardHealth.primaryActive = true;
}
} else if (shardRouting.initializing()) {
shardHealth.initializingShards++;
} else if (shardRouting.unassigned()) {
shardHealth.unassignedShards++;
}
}
if (shardHealth.primaryActive) {
if (shardHealth.activeShards == shardRoutingTable.size()) {
shardHealth.status = ClusterHealthStatus.GREEN;
} else {
shardHealth.status = ClusterHealthStatus.YELLOW;
}
} else {
shardHealth.status = ClusterHealthStatus.RED;
}
shards.put(shardHealth.getId(), shardHealth);
}
// update the index status
status = ClusterHealthStatus.GREEN;
for (ClusterShardHealth shardHealth : shards.values()) {
if (shardHealth.isPrimaryActive()) {
activePrimaryShards++;
}
activeShards += shardHealth.activeShards;
relocatingShards += shardHealth.relocatingShards;
initializingShards += shardHealth.initializingShards;
unassignedShards += shardHealth.unassignedShards;
if (shardHealth.getStatus() == ClusterHealthStatus.RED) {
status = ClusterHealthStatus.RED;
} else if (shardHealth.getStatus() == ClusterHealthStatus.YELLOW
&& status != ClusterHealthStatus.RED) {
// do not override an existing red
status = ClusterHealthStatus.YELLOW;
}
}
if (!validationFailures.isEmpty()) {
status = ClusterHealthStatus.RED;
} else if (shards
.isEmpty()) { // might be since none has been created yet (two phase index creation)
status = ClusterHealthStatus.RED;
}
}