Hi Pankaj, which API version is the client//server running? Line numbers on the stacktrace shared don't seem to match the latest commit for org.apache.hadoop.hbase.rest.client.Client. This NoHttpResponseException suggest the server is not responding. Have you already tried the same command by accessing the REST server directly via curl or other http client (as a test, to make sure the issue is within the REST Client)?
Em dom, 16 de dez de 2018 às 17:22, Pankaj kr <pankaj...@huawei.com> escreveu: > > Dear Folks, > > Anyone using REST client operations in Kerberos secure cluster. > > We are facing multiple issues while preforming RemoteAdmin/RemoteHTable (REST > client) operations in a Kerberos secured cluster. > > Issue - 1: > Client received below exception, > java.lang.IllegalStateException: Invalid use of BasicClientConnManager: > connection still allocated. > Make sure to release the connection before allocating another one. > at org.apache.http.util.Asserts.check(Asserts.java:34) > at > org.apache.http.impl.conn.BasicClientConnectionManager.getConnection(BasicClientConnectionManager.java:163) > at > org.apache.http.impl.conn.BasicClientConnectionManager$1.getConnection(BasicClientConnectionManager.java:145) > at > org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:422) > at > org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) > at > org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) > at > org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) > at > org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) > at org.apache.hadoop.hbase.rest.client.Client.executeURI(Client.java:240) > at org.apache.hadoop.hbase.rest.client.Client.executePathOnly(Client.java:204) > at org.apache.hadoop.hbase.rest.client.Client.execute(Client.java:265) > at org.apache.hadoop.hbase.rest.client.Client.get(Client.java:459) > at org.apache.hadoop.hbase.rest.client.Client.get(Client.java:391) > at org.apache.hadoop.hbase.rest.client.Client.get(Client.java:376) > at > org.apache.hadoop.hbase.rest.client.RemoteAdmin.isTableAvailable(RemoteAdmin.java:254) > at > org.apache.hadoop.hbase.rest.client.RemoteAdmin.isTableAvailable(RemoteAdmin.java:99) > Soln: > Need to consume the response before negotiate at Client.executeURI(..) > > https://github.com/apache/hbase/blob/3180a6864aa6a019fc1ec21ae78f009475bacea1/hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/client/Client.java#L236 > {code} > EntityUtils.consumeQuietly(resp.getEntity()); > {code} > > Issue - 2: > ServerHolder is not initialized with RESTServletContainer, > > https://github.com/apache/hbase/blob/3180a6864aa6a019fc1ec21ae78f009475bacea1/hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/RESTServer.java#L248 > Soln: > ServletHolder should be initialized as, > {code} > ServletHolder sh = new ServletHolder(new > RESTServletContainer(application)); > {code} > > Issue - 3: > GET (ExistsResource, ) request is working fine but none of the PUT/POST > request are working. Client is getting below exception always, > {noformat} > Exception in thread "main" java.security.PrivilegedActionException: > org.apache.http.NoHttpResponseException: host-name:port failed to respond > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:422) > at > org.apache.hadoop.hbase.rest.RESTDemoClient.main(RESTDemoClient.java:80) > Caused by: org.apache.http.NoHttpResponseException: host-name:port failed to > respond > at > org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:141) > at > org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56) > at > org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259) > at > org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:281) > at > org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:257) > at > org.apache.http.impl.conn.ManagedClientConnectionImpl.receiveResponseHeader(ManagedClientConnectionImpl.java:207) > at > org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273) > at > org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125) > at > org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:684) > at > org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:486) > at > org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) > at > org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) > at > org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108) > at > org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) > at > org.apache.hadoop.hbase.rest.client.Client.executeURI(Client.java:257) > at > org.apache.hadoop.hbase.rest.client.Client.executePathOnly(Client.java:216) > at org.apache.hadoop.hbase.rest.client.Client.execute(Client.java:282) > at org.apache.hadoop.hbase.rest.client.Client.put(Client.java:574) > at org.apache.hadoop.hbase.rest.client.Client.put(Client.java:521) > at org.apache.hadoop.hbase.rest.client.Client.put(Client.java:491) > at > org.apache.hadoop.hbase.rest.client.RemoteAdmin.createTable(RemoteAdmin.java:294) > However I am debugging the code, after negotiation client request never > reached to REST server side. > Anyone faced Issue-3, any pointer will be very much appreciated. > > > I will raise JIRA to address Issue 1 & 2 soon. > > Thanks & Regards, > Pankaj
