/**
* checks for any cluster state blocks. Returns true if operation is OK to proceeded. if false
* is return, no further action is needed. The method takes care of any continuation, by either
* responding to the listener or scheduling a retry
*/
protected boolean checkBlocks() {
ClusterBlockException blockException = checkGlobalBlock(observer.observedState());
if (blockException != null) {
if (blockException.retryable()) {
logger.trace("cluster is blocked ({}), scheduling a retry", blockException.getMessage());
retry(blockException);
} else {
finishAsFailed(blockException);
}
return false;
}
if (resolveIndex()) {
internalRequest.concreteIndex(
indexNameExpressionResolver.concreteSingleIndex(
observer.observedState(), internalRequest.request()));
} else {
internalRequest.concreteIndex(internalRequest.request().index());
}
resolveRequest(observer.observedState(), internalRequest, listener);
blockException = checkRequestBlock(observer.observedState(), internalRequest);
if (blockException != null) {
if (blockException.retryable()) {
logger.trace("cluster is blocked ({}), scheduling a retry", blockException.getMessage());
retry(blockException);
} else {
finishAsFailed(blockException);
}
return false;
}
return true;
}
public void testClusterBlockException() throws IOException {
ClusterBlockException ex =
serialize(
new ClusterBlockException(ImmutableSet.of(DiscoverySettings.NO_MASTER_BLOCK_WRITES)));
assertEquals("blocked by: [SERVICE_UNAVAILABLE/2/no master];", ex.getMessage());
assertTrue(ex.blocks().contains(DiscoverySettings.NO_MASTER_BLOCK_WRITES));
assertEquals(1, ex.blocks().size());
}