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https://issues.apache.org/jira/browse/PHOENIX-6548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17425837#comment-17425837
]
ASF GitHub Bot commented on PHOENIX-6548:
-----------------------------------------
gokceni commented on a change in pull request #1328:
URL: https://github.com/apache/phoenix/pull/1328#discussion_r723747526
##########
File path: phoenix-core/src/main/java/org/apache/phoenix/util/ServerUtil.java
##########
@@ -308,13 +308,22 @@ public static HTableFactory
getDelegateHTableFactory(CoprocessorEnvironment env,
this.connectionType = connectionType;
}
- private ClusterConnection getConnection() throws IOException {
+ public ClusterConnection getConnection() throws IOException {
return ConnectionFactory.getConnection(connectionType, conf,
server);
}
@Override
public HTableInterface getTable(ImmutableBytesPtr tablename) throws
IOException {
- return getConnection().getTable(tablename.copyBytesIfNecessary());
+ ClusterConnection connection = null;
+ try {
+ connection = getConnection();
+ return connection.getTable(tablename.copyBytesIfNecessary());
Review comment:
Should you do a null check here? Can connection be null?
##########
File path: phoenix-core/src/main/java/org/apache/phoenix/util/ServerUtil.java
##########
@@ -308,13 +308,22 @@ public static HTableFactory
getDelegateHTableFactory(CoprocessorEnvironment env,
this.connectionType = connectionType;
}
- private ClusterConnection getConnection() throws IOException {
+ public ClusterConnection getConnection() throws IOException {
return ConnectionFactory.getConnection(connectionType, conf,
server);
}
@Override
public HTableInterface getTable(ImmutableBytesPtr tablename) throws
IOException {
- return getConnection().getTable(tablename.copyBytesIfNecessary());
+ ClusterConnection connection = null;
+ try {
+ connection = getConnection();
+ return connection.getTable(tablename.copyBytesIfNecessary());
Review comment:
Should you do a null check here? Can connection be null? If yes then
IllegalArgumentException will not be thrown
##########
File path: phoenix-core/src/main/java/org/apache/phoenix/util/ServerUtil.java
##########
@@ -328,7 +337,16 @@ public void shutdown() {
@Override
public HTableInterface getTable(ImmutableBytesPtr tablename,
ExecutorService pool)
throws IOException {
- return getConnection().getTable(tablename.copyBytesIfNecessary(),
pool);
+ ClusterConnection connection = null;
+ try {
+ connection = getConnection();
+ return connection.getTable(tablename.copyBytesIfNecessary(),
pool);
+ }catch (IllegalArgumentException e) {
Review comment:
ditto
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> Race condition when triggering index rebuilds as regionserver closes
> --------------------------------------------------------------------
>
> Key: PHOENIX-6548
> URL: https://issues.apache.org/jira/browse/PHOENIX-6548
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.14.3, 4.16.1
> Reporter: Geoffrey Jacoby
> Assignee: Ankit Jain
> Priority: Minor
>
> On each regionserver our coprocs keep a cache of HConnections with custom
> settings (such as short timeouts) for talking to other regionservers. They're
> used when coprocs need to make RPCs, such as during index rebuilds.
> When a regionserver is closed, these HConnections are closed as well.
> However, we've seen in our test pipelines a race condition where we may have
> just given out one of the HConnections to a coprocessor, only to have the
> connection closed just before it's used.
> This will produce an IllegalArgumentException from the HBase Table object,
> which (if the index rebuild was caused by a client Scan) will be thrown back
> to the client as a DoNotRetryIOException.
> In this case we want the client exception to be a normal retriable
> IOException, because if they try again after the region comes up again
> somewhere else, the Scan will likely succeed.
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