[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15178823#comment-15178823 ] stack commented on HBASE-15355: --- bq. BTW, do we have any design or plan to split meta for scaling? There are the pages I linked in response to Gary. They are hanging of the umbrella issues. The conversations have gone stale -- or probably a better description is they are put on hold while the procedureV2 stuff is getting retrofitted into master branch -- and we need to revive the architectural talks. You fellas used to have a few ideas in this area [~cuijianwei] (smile). > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15175490#comment-15175490 ] Jianwei Cui commented on HBASE-15355: - [~stack] Thanks for your comment:). If we decide to undo master hosting meta in near future, this issue is not a problem IMO, otherwise, we can move jps files to fix this issue. BTW, do we have any design or plan to split meta for scaling? > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174332#comment-15174332 ] Gary Helmling commented on HBASE-15355: --- I also agree that we should revive the scaling discussion on the dev list. We're getting a bit off topic for this issue. > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174330#comment-15174330 ] Gary Helmling commented on HBASE-15355: --- In my opinion, consistency and availability of meta for master writes make a pretty strong case. The argument that master is in the write path only applies because we haven't rolled this completely forward and made master functions just a special case of the regionserver hosting meta. That seems like the real endpoint -- the end of master as it's own additional operational process. Also if we need to split meta for scaling, do we really think we won't also need to split/distribute master functions for scaling. When looking at hosting millions of regions, do we really think a single master in the current incarnation is going to be able to keep up? > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174307#comment-15174307 ] stack commented on HBASE-15355: --- See docs. Farms out i/o and mitgates outage of server hosting meta > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174303#comment-15174303 ] stack commented on HBASE-15355: --- bq. I disagree. I think the opposite. We didn't go far enough. This master hosting meta should be default on for 2.0 and I wish it would have been on for 1.0. You need to make a case. Needs to address the arguments that have come up in the past: scaling, splitting-meta. See above cited doc and then this one which you comment on (and in which you seem to have a particular opinion): https://docs.google.com/document/d/1eCuqf7i2dkWHL0PxcE1HE1nLRQ_tCyXI4JsOB6TAk60/edit# Looks like we need to revive scaling discussion. It has been underground for a while now. > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174297#comment-15174297 ] Elliott Clark commented on HBASE-15355: --- Split meta is a solution in search of a problem. > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174245#comment-15174245 ] stack commented on HBASE-15355: --- Mighty [~ghelmling] "what's the reason for undoing it? We've been considering it as a solution to situations where the RS hosting meta has a backed up priority queue and master cannot complete initialization, or if up and running cannot complete region reassignments for failed servers." I'd undo it because as-is it is half-baked so disabling till done and we decide this is the way we want to indeed go (I'd be against it). + Because it puts the master in the write path. + Won't work for case where we split meta More (old) discussion here: https://docs.google.com/document/d/1xC-bCzAAKO59Xo3XN-Cl6p-5CM_4DMoR-WpnkmYZgpw/edit#heading=h.j5yqy7n04bkn > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174234#comment-15174234 ] Elliott Clark commented on HBASE-15355: --- bq. looks like we will undo master hosting meta tables before 2.0 releases. I disagree. I think the opposite. We didn't go far enough. This master hosting meta should be default on for 2.0 and I wish it would have been on for 1.0. > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15174215#comment-15174215 ] Gary Helmling commented on HBASE-15355: --- [~stack] what's the reason for undoing it? We've been considering it as a solution to situations where the RS hosting meta has a backed up priority queue and master cannot complete initialization, or if up and running cannot complete region reassignments for failed servers. > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15172355#comment-15172355 ] stack commented on HBASE-15355: --- [~cuijianwei] It looks like we will undo master hosting meta tables before 2.0 releases. Master hosting system tables was a stopping point while exploring master-as-regionserver. We went too far. Would it be better for you lot moving over the region.jsp or should we just fix it now so master can't host meta tables? > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HBASE-15355) region.jsp can not be found on info server of master
[ https://issues.apache.org/jira/browse/HBASE-15355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15170835#comment-15170835 ] Jianwei Cui commented on HBASE-15355: - Master is also a regionserver, do we need to put the jsp file in the same folder? > region.jsp can not be found on info server of master > > > Key: HBASE-15355 > URL: https://issues.apache.org/jira/browse/HBASE-15355 > Project: HBase > Issue Type: Bug > Components: UI >Affects Versions: 2.0.0 >Reporter: Jianwei Cui >Priority: Minor > > After [HBASE-10569|https://issues.apache.org/jira/browse/HBASE-10569], master > is also a regionserver and it will serve regions of system tables. The meta > region info could be viewed on master at the address such as : > http://localhost:16010/region.jsp?name=1588230740. The real path of > region.jsp for the request will be hbase-webapps/master/region.jsp on master, > however, the region.jsp is under the directory hbase-webapps/regionserver, so > that can not be found on master. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
