Prateek Arora created KNOX-552:
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Summary: 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
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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