Hi there All- So this is what is suggested to be able to start Trafodion on each node individually:
Run sqgen on each node. Create a new script that would be ran on each node (probably just a wrapper) that calls gomon.cold. How will this work for processes that are one per cluster, like the monitor? Thanks! On Tue, Mar 15, 2016 at 10:02 AM, Liu, Ming (Ming) <ming....@esgyn.cn> wrote: > The purpose I guess is to bypass time-consuming database recovery if it is > a warm start. Say, if you have a clean shutdown of Trafodion, you can warm > restart it. If one use ‘ckillall’, or simply loss power, one needs a cold > start. But I think this is just the concept. May not support yet? We > studied the two gomon scripts, seems identical except some minor difference. > > > > And Narendra is correct, I misunderstand the startup code. It is possible. > > > > Thanks, > > Ming > > > > *发件人:* Gunnar Tapper [mailto:tapper.gun...@gmail.com] > *发送时间:* 2016年3月16日 0:36 > *收件人:* user@trafodion.incubator.apache.org > *主题:* Re: 答复: Anyway to start Trafodion without sqstart > > > > BTW, in what cases should gomon.warm or the sqstart warm argument be used? > > > > Thanks, > > > > Gunnar > > > > On Tue, Mar 15, 2016 at 10:30 AM, Narendra Goyal <narendra.go...@esgyn.com> > wrote: > > Yes, one can follow the commands in ‘gomon.cold’ (that sqstart uses (what > Selva mentioned)) to startup without sqstart. > > > > As such, before ‘sqstart’ executes the commands in ‘gomon.cold’, it does > some other checks (like checks for orphan processes), and cleans up IPC > constructs (semaphores, queues, shared memory) via sqipcrm. > > > > Thanks, > > -Narendra > > > > *From:* Gunnar Tapper [mailto:tapper.gun...@gmail.com] > *Sent:* Tuesday, March 15, 2016 8:10 AM > *To:* user@trafodion.incubator.apache.org > *Subject:* Re: 答复: Anyway to start Trafodion without sqstart > > > > The use case is how Apache Ambari works: it assume node-by-node management > of services. This is how you achieve rolling upgrades, stopping all > services on a node, etc. > > > > I wonder if it's possible to first start the monitor (using the startup > command) and then start/stop other components per node. Kind of a hybrid > model. > > > > DCS/REST should already support this use case since it's based on the > HBase model where the scripts start daemons on each configured node. > > > > Gunnar > > > > On Tue, Mar 15, 2016 at 8:57 AM, Liu, Ming (Ming) <ming....@esgyn.cn> > wrote: > > From my understanding, it is invalid to start trafodion on node by node > mode. Monitor simulate a single image of operating system from a bunch of > nodes. One process can be configured to be a pair: active and standby. So > when start a trafodion process, it will start two processes on two nodes. > It is hard to start a single node. > > Is there any use case to do so? > > > > Thanks, > > Ming > > > > *发件人**:* Selva Govindarajan [mailto:selva.govindara...@esgyn.com] > *发送时间**:* 2016年3月15日 22:27 > *收件人**:* user@trafodion.incubator.apache.org > *主**题**:* RE: Anyway to start Trafodion without sqstart > > > > Yes. The sqgen command takes in the configuration file for the trafodion > cluster and generates gomon.cold, gomon.warm and other relevant scripts. > These generated scripts are copied to all nodes in the cluster. These > scripts are nothing but the commands to sqshell. sqstart uses either > gomon.cold or gomon.warm to start the Trafodion instance. > > > > Selva > > > > *From:* Gunnar Tapper [mailto:tapper.gun...@gmail.com] > *Sent:* Monday, March 14, 2016 10:03 PM > *To:* user@trafodion.incubator.apache.org > *Subject:* Re: Anyway to start Trafodion without sqstart > > > > DCS and REST follow the HBase model so that should be a simple matter of > invoking the *-daemon.sh scripts. > > > > I think the rest is a matter of using sqshell: > > > > [centos@trafodion incubator-trafodion]$ sqshell > > Processing cluster.conf on local host trafodion.novalocal > > [SHELL] Shell/shell Version 1.0.1 Apache_Trafodion Release 2.0.0 (Build > debug [centos], date 11Mar16) > > [SHELL] %help > > [SHELL] usage: shell {[-a|-i] [<scriptfile>]} | {-c <command>} > > [SHELL] - commands: > > [SHELL] -- Command line environment variable replacement: ${<var_name>} > > [SHELL] -- ! comment statement > > [SHELL] -- cd <path> > > [SHELL] -- delay <seconds> > > [SHELL] -- down <nid> [, <reason-string>] > > [SHELL] -- dump [{path <pathname>}] <process name> | <nid,pid> > > [SHELL] -- echo [<string>] > > [SHELL] -- event [{ASE|TSE|DTM|AMP|BO|VR|CS}] <event_id> [<nid,pid> [ > event-data] ] > > [SHELL] -- exec [{[debug][nowait][pri <value>][name <process name>] > > [SHELL] [nid <zone or node number>][type > {AMP|ASE|BO|CS|DTM|PSD|SMS|SPX|SSMP|TSE|VR}] > > [SHELL] -- [in <file>|#default][out <file>|#default]}] path > [[<args>]...] > > [SHELL] -- exit [!] > > [SHELL] -- help > > [SHELL] -- kill [{abort}] <process name> | <nid,pid> > > [SHELL] -- ldpath [<directory>[,<directory>]...] > > [SHELL] -- ls [{[detail]}] [<path>] > > [SHELL] -- measure | measure_cpu > > [SHELL] -- monstats > > [SHELL] -- node [info [<nid>]] > > [SHELL] -- path [<directory>[,<directory>]...] > > [SHELL] -- ps [{ASE|TSE|DTM|AMP|BO|VR|CS}] [<process_name>|<nid,pid>] > > [SHELL] -- pwd > > [SHELL] -- quit > > [SHELL] -- scanbufs > > [SHELL] -- set [{[nid <number>]|[process <name>]}] key=<value string> > > [SHELL] -- show [{[nid <number>]|[process <name>]}] [key] > > [SHELL] -- shutdown [[immediate]|[abrupt]|[!]] > > [SHELL] -- startup [trace] [<trace level>] > > [SHELL] -- suspend [<event_id>] > > [SHELL] -- time <shell command> > > [SHELL] -- trace <number> > > [SHELL] -- up <name> > > [SHELL] -- wait [<process name> | <nid,pid>] > > [SHELL] -- warmstart [trace] [<trace level>] > > [SHELL] -- zone [nid <nid>|zid <zid>] > > [ > > > > Obviously, you can up/down nodes but I don't know how that works in > relationship to the startup command. > > > > On Mon, Mar 14, 2016 at 11:52 AM, Amanda Moran <amanda.mo...@esgyn.com> > wrote: > > Hi there- > > > > Is there a way to start up Trafodion not by using sqstart...? I would like > to be able to start up/stop each node individually. > > > > Thanks! > > > > -- > > Thanks, > > > > Amanda Moran > > > > > > -- > > Thanks, > > > > Gunnar > > *If you think you can you can, if you think you can't you're right.* > > > > > > -- > > Thanks, > > > > Gunnar > > *If you think you can you can, if you think you can't you're right.* > > > > > > -- > > Thanks, > > > > Gunnar > > *If you think you can you can, if you think you can't you're right.* > -- Thanks, Amanda Moran
