Hi Prateek, I didn't catch which version of Knox you are using. Assuming you are using 0.6.0 please take a look at https://issues.apache.org/jira/browse/KNOX-546 as it may resolve your issue. This fix is not yet in a release but if you want to try it out you can build from the 0.6.0 branch source or master.
HTH, Sumit. From: prateek arora <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Friday, May 22, 2015 at 7:01 PM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: some times my curl command hang ( Added More Information ) Hi I am trying to create a table in hbase using knox gateway : curl -v -ik -u guest:guest-password -H "Accept: text/xml" -H "Content-Type: text/xml" -d '<?xml version="1.0" encoding="UTF-8"?><TableSchema name="table1"><ColumnSchema name="family1"/><ColumnSchema name="family2"/></TableSchema>' -X PUT 'https://localhost:8443/gateway/sandbox/hbase/table1/schema' always 2 tables was created successfully but when I try to create third table its hang and restart of gateway service is required. This scenario only occur during creation of table in hbase. output of curl ( when hang occur) * Hostname was NOT found in DNS cache * Trying 192.168.44.98... * Connected to master (192.168.44.98) port 8443 (#0) * successfully set certificate verify locations: * CAfile: none CApath: /etc/ssl/certs * SSLv3, TLS handshake, Client hello (1): * SSLv3, TLS handshake, Server hello (2): * SSLv3, TLS handshake, CERT (11): * SSLv3, TLS handshake, Server key exchange (12): * SSLv3, TLS handshake, Server finished (14): * SSLv3, TLS handshake, Client key exchange (16): * SSLv3, TLS change cipher, Client hello (1): * SSLv3, TLS handshake, Finished (20): * SSLv3, TLS change cipher, Client hello (1): * SSLv3, TLS handshake, Finished (20): * SSL connection using ECDHE-RSA-AES256-SHA384 * Server certificate: * subject: C=US; ST=Test; L=Test; O=Hadoop; OU=Test; CN=localhost * start date: 2015-05-21 23:50:29 GMT * expire date: 2016-05-20 23:50:29 GMT * issuer: C=US; ST=Test; L=Test; O=Hadoop; OU=Test; CN=localhost * SSL certificate verify result: self signed certificate (18), continuing anyway. * Server auth using Basic with user 'admin' > PUT /gateway/sandbox/hbase/table10/schema HTTP/1.1 > Authorization: Basic YWRtaW46YWRtaW4tcGFzc3dvcmQ= > User-Agent: curl/7.35.0 > Host: master:8443 > Accept: application/json > Content-Type: application/json > Content-Length: 52 > * upload completely sent off: 52 out of 52 bytes Gateway log: 2015-05-22 15:46:51,589 INFO realm.AuthorizingRealm (AuthorizingRealm.java:getAuthorizationCacheLazy(248)) - No cache or cacheManager properties have been set. Authorization cache cannot be obtained. 2015-05-22 15:46:51,592 DEBUG hadoop.gateway (UrlRewriteProcessor.java:rewrite(155)) - Rewrote URL: https://localhost:8443/gateway/sandbox/hbase/table15/schema, direction: IN via implicit rule: WEBHBASE/webhbase/path/inbound to URL: http://192.168.44.98:20550/table15/schema 2015-05-22 15:46:51,593 DEBUG hadoop.gateway (DefaultDispatch.java:executeOutboundRequest(109)) - Dispatch request: PUT http://192.168.44.98:20550/table15/schema?user.name=guest 2015-05-22 15:46:51,594 DEBUG protocol.RequestAddCookies (RequestAddCookies.java:process(122)) - CookieSpec selected: best-match 2015-05-22 15:46:51,595 DEBUG protocol.RequestAuthCache (RequestAuthCache.java:process(75)) - Auth cache not set in the context 2015-05-22 15:46:51,595 DEBUG conn.PoolingHttpClientConnectionManager (PoolingHttpClientConnectionManager.java:requestConnection(219)) - Connection request: [route: {}->http://192.168.44.98:20550][total kept alive: 0; route allocated: 2 of 2; total allocated: 2 of 20] I think gateway tries to establish connection with Hadoop service but number of route allocation reach to max limit "route allocated: 2 of 2 "so its hang. So may be previous hbase commands not releasing there connection. Please help me to solve this problem. Regards Prateek
