Github user keith-turner commented on a diff in the pull request:
https://github.com/apache/accumulo/pull/254#discussion_r114136601
--- Diff:
server/tserver/src/main/java/org/apache/accumulo/tserver/replication/AccumuloReplicaSystem.java
---
@@ -288,15 +295,36 @@ public String execute(ReplicationCoordinator.Client
client) throws Exception {
}
} else {
span = Trace.start("WAL replication");
+
+ ExecutorService executor = Executors.newFixedThreadPool(1);
+
try {
- finalStatus = replicateLogs(peerContext, peerTserver,
target, p, status, sizeLimit, remoteTableId, peerContext.rpcCreds(), helper,
accumuloUgi);
+ Future<Status> replStatus = executor.submit(new
Callable<Status>() {
+ @Override
+ public Status call() throws Exception {
+ return replicateLogs(peerContext, peerTserver, target,
p, status, sizeLimit, remoteTableId, peerContext.rpcCreds(), helper,
accumuloUgi);
+ }
+ });
+
+ log.debug("Getting replication status with timeout {}",
conf.get(Property.REPLICATION_TIMEOUT));
+ finalStatus =
replStatus.get(conf.getTimeInMillis(Property.REPLICATION_TIMEOUT),
MILLISECONDS);
+ log.debug("New status for {} after replicating to {} is {}",
p, peerContext.getInstance(), ProtobufUtil.toString(finalStatus));
+ } catch (InterruptedException e) {
+ log.debug("Interrupted exception during replication", e);
+ Thread.currentThread().interrupt();
+ finalStatus = status;
+ } catch (ExecutionException e) {
+ log.warn("Caught execution exception", e);
+ finalStatus = status;
+ } catch (TimeoutException e) {
+ log.debug("Replication timeout triggered, task will be
retried by the framework");
+ finalStatus = status;
} finally {
span.stop();
+ executor.shutdownNow();
--- End diff --
Could add comment here that shutdownNow was called instead of shutdown
because it will interrupt threads.
If you had an atomic boolean for interrupting, could set it here.
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