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https://issues.apache.org/jira/browse/KNOX-552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sumit Gupta resolved KNOX-552.
------------------------------
Resolution: Fixed
fixed by [KNOX-558]
> curl command hang during creation and putting data into hbase using knox
> gateway 0.6.0
> --------------------------------------------------------------------------------------
>
> Key: KNOX-552
> URL: https://issues.apache.org/jira/browse/KNOX-552
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Affects Versions: 0.6.0
> Reporter: Prateek Arora
> Assignee: Sumit Gupta
>
> I am trying to create a table in hbase through knox gateway ( 0.6.0) using
> following command:
>
> 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 knox gateway service is required.
> This scenario occur during creation of table and also putting data into
> tables in hbase.
> same scenario is working fine with older knox version 0.5.1
>
>
> 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 after previous hbase creation table curl commands knox did not
> released there connection.
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