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HBASE-22009 Improve RSGroupInfoManagerImpl#getDefaultServers() 

Signed-off-by: Xu Cang <xucang@apache.org>
This commit is contained in:
Xiang Li 2019-03-07 16:20:18 +00:00 committed by Xu Cang
parent cc55835d03
commit 637764ab7b
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GPG Key ID: 8E6C8FEDCA866394
1 changed files with 10 additions and 8 deletions
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18
hbase-rsgroup/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java
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@ -596,17 +596,19 @@ final class RSGroupInfoManagerImpl implements RSGroupInfoManager {
// Called by ServerEventsListenerThread. Presume it has lock on this manager when it runs.
private SortedSet<Address> getDefaultServers() throws IOException {
// Build a list of servers in other groups than default group, from rsGroupMap
Set<Address> serversInOtherGroup = new HashSet<>();
for (RSGroupInfo group : listRSGroups() /* get from rsGroupMap */) {
if (!RSGroupInfo.DEFAULT_GROUP.equals(group.getName())) { // not default group
serversInOtherGroup.addAll(group.getServers());
}
}
// Get all online servers from Zookeeper and find out servers in default group
SortedSet<Address> defaultServers = Sets.newTreeSet();
for (ServerName serverName : getOnlineRS()) {
Address server = Address.fromParts(serverName.getHostname(), serverName.getPort());
boolean found = false;
for (RSGroupInfo rsgi : listRSGroups()) {
if (!RSGroupInfo.DEFAULT_GROUP.equals(rsgi.getName()) && rsgi.containsServer(server)) {
found = true;
break;
}
}
if (!found) {
if (!serversInOtherGroup.contains(server)) { // not in other groups
defaultServers.add(server);
}
}