本文整理汇总了Java中org.apache.hadoop.hbase.client.MultiAction.getRegions方法的典型用法代码示例。如果您正苦于以下问题：Java MultiAction.getRegions方法的具体用法？Java MultiAction.getRegions怎么用？Java MultiAction.getRegions使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hbase.client.MultiAction的用法示例。
在下文中一共展示了MultiAction.getRegions方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: apply
import org.apache.hadoop.hbase.client.MultiAction; //导入方法依赖的package包/类
@Override
public Integer apply(Writable from) {
if (!(from instanceof Invocation)) return HConstants.NORMAL_QOS;
Invocation inv = (Invocation) from;
String methodName = inv.getMethodName();
Integer priorityByAnnotation = annotatedQos.get(methodName);
if (priorityByAnnotation != null) {
return priorityByAnnotation;
}
// scanner methods...
if (methodName.equals("next") || methodName.equals("close")) {
// translate!
Long scannerId;
try {
scannerId = (Long) inv.getParameters()[0];
} catch (ClassCastException ignored) {
// LOG.debug("Low priority: " + from);
return HConstants.NORMAL_QOS;
}
String scannerIdString = Long.toString(scannerId);
RegionScanner scanner = scanners.get(scannerIdString);
if (scanner != null && scanner.getRegionInfo().isMetaTable()) {
// LOG.debug("High priority scanner request: " + scannerId);
return HConstants.HIGH_QOS;
}
} else if (inv.getParameterClasses().length == 0) {
// Just let it through. This is getOnlineRegions, etc.
} else if (inv.getParameterClasses()[0] == byte[].class) {
// first arg is byte array, so assume this is a regionname:
if (isMetaTable((byte[]) inv.getParameters()[0])) {
// LOG.debug("High priority with method: " + methodName +
// " and region: "
// + Bytes.toString((byte[]) inv.getParameters()[0]));
return HConstants.HIGH_QOS;
}
} else if (inv.getParameterClasses()[0] == MultiAction.class) {
MultiAction<?> ma = (MultiAction<?>) inv.getParameters()[0];
Set<byte[]> regions = ma.getRegions();
// ok this sucks, but if any single of the actions touches a meta, the
// whole
// thing gets pingged high priority. This is a dangerous hack because
// people
// can get their multi action tagged high QOS by tossing a Get(.META.)
// AND this
// regionserver hosts META/-ROOT-
for (byte[] region : regions) {
if (isMetaTable(region)) {
// LOG.debug("High priority multi with region: " +
// Bytes.toString(region));
return HConstants.HIGH_QOS; // short circuit for the win.
}
}
}
// LOG.debug("Low priority: " + from.toString());
return HConstants.NORMAL_QOS;
}
示例2: apply
import org.apache.hadoop.hbase.client.MultiAction; //导入方法依赖的package包/类
@Override
public Integer apply(Writable from) {
if (!(from instanceof Invocation)) return HConstants.NORMAL_QOS;
Invocation inv = (Invocation) from;
String methodName = inv.getMethodName();
Integer priorityByAnnotation = annotatedQos.get(methodName);
if (priorityByAnnotation != null) {
return priorityByAnnotation;
}
// scanner methods...
if (methodName.equals("next") || methodName.equals("close")) {
// translate!
Long scannerId;
try {
scannerId = (Long) inv.getParameters()[0];
} catch (ClassCastException ignored) {
// LOG.debug("Low priority: " + from);
return HConstants.NORMAL_QOS;
}
String scannerIdString = Long.toString(scannerId);
RegionScanner scanner = scanners.get(scannerIdString);
if (scanner != null && scanner.getRegionInfo().isMetaTable()) {
// LOG.debug("High priority scanner request: " + scannerId);
return HConstants.HIGH_QOS;
}
} else if (inv.getParameterClasses().length == 0) {
// Just let it through. This is getOnlineRegions, etc.
} else if (inv.getParameterClasses()[0] == byte[].class) {
// first arg is byte array, so assume this is a regionname:
if (isMetaTable((byte[]) inv.getParameters()[0])) {
// LOG.debug("High priority with method: " + methodName +
// " and region: "
// + Bytes.toString((byte[]) inv.getParameters()[0]));
return HConstants.HIGH_QOS;
}
} else if (inv.getParameterClasses()[0] == MultiAction.class) {
MultiAction<?> ma = (MultiAction<?>) inv.getParameters()[0];
Set<byte[]> regions = ma.getRegions();
// ok this sucks, but if any single of the actions touches a meta, the
// whole
// thing gets pingged high priority. This is a dangerous hack because
// people
// can get their multi action tagged high QOS by tossing a Get(.META.)
// AND this
// regionserver hosts META/-ROOT-
for (byte[] region : regions) {
if (isMetaTable(region)) {
// LOG.debug("High priority multi with region: " +
// Bytes.toString(region));
return HConstants.HIGH_QOS; // short circuit for the win.
}
}
}
// LOG.debug("Low priority: " + from.toString());
return HConstants.NORMAL_QOS;
}
示例3: apply
import org.apache.hadoop.hbase.client.MultiAction; //导入方法依赖的package包/类
@Override
public Integer apply(Writable from) {
if (!(from instanceof Invocation)) return NORMAL_QOS;
Invocation inv = (Invocation) from;
String methodName = inv.getMethodName();
Integer priorityByAnnotation = annotatedQos.get(methodName);
if (priorityByAnnotation != null) {
return priorityByAnnotation;
}
// scanner methods...
if (methodName.equals("next") || methodName.equals("close")) {
// translate!
Long scannerId;
try {
scannerId = (Long) inv.getParameters()[0];
} catch (ClassCastException ignored) {
// LOG.debug("Low priority: " + from);
return NORMAL_QOS; // doh.
}
String scannerIdString = Long.toString(scannerId);
RegionScanner scanner = scanners.get(scannerIdString);
if (scanner != null && scanner.getRegionInfo().isMetaRegion()) {
// LOG.debug("High priority scanner request: " + scannerId);
return HIGH_QOS;
}
} else if (inv.getParameterClasses().length == 0) {
// Just let it through. This is getOnlineRegions, etc.
} else if (inv.getParameterClasses()[0] == byte[].class) {
// first arg is byte array, so assume this is a regionname:
if (isMetaRegion((byte[]) inv.getParameters()[0])) {
// LOG.debug("High priority with method: " + methodName +
// " and region: "
// + Bytes.toString((byte[]) inv.getParameters()[0]));
return HIGH_QOS;
}
} else if (inv.getParameterClasses()[0] == MultiAction.class) {
MultiAction<?> ma = (MultiAction<?>) inv.getParameters()[0];
Set<byte[]> regions = ma.getRegions();
// ok this sucks, but if any single of the actions touches a meta, the
// whole
// thing gets pingged high priority. This is a dangerous hack because
// people
// can get their multi action tagged high QOS by tossing a Get(.META.)
// AND this
// regionserver hosts META/-ROOT-
for (byte[] region : regions) {
if (isMetaRegion(region)) {
// LOG.debug("High priority multi with region: " +
// Bytes.toString(region));
return HIGH_QOS; // short circuit for the win.
}
}
}
// LOG.debug("Low priority: " + from.toString());
return NORMAL_QOS;
}