> If you jstack your new tablet server, does it show a deadlock? No
On 1/13/15, Eric Newton <[email protected]> wrote: > This may be a result of ACCUMULO-3372. If you jstack your new tablet > server, does it show a deadlock? > > $ jps -m > 12345 Main tserver --address host:9997 > > $ jstack 12345 | grep -i deadlock > Deadlock detected > > This particular bug only happens at start-up. There's a trivial patch > (which you can find through the bug report), which will be in accumulo > 1.6.2. > > -Eric > > > On Mon, Jan 12, 2015 at 4:06 PM, Denis <[email protected]> wrote: > >> I have not tried yet anything newer than 1.6.1 >> >> On 1/12/15, Josh Elser <[email protected]> wrote: >> > Denis wrote: >> >> created https://issues.apache.org/jira/browse/ACCUMULO-3471 >> > >> > Thanks a bunch! >> > >> >> BTW, In 1.6.1 also balancing may get stuck until the master server is >> >> restarted. >> > >> > Is this a known issue in 1.6.1 that's been since fixed or is it still >> > outstanding? >> > >> >> But then, after the master restart, balancing works very >> >> "aggressively", putting many tablets offline for quite long time >> >> (minutes) >> >> >> >> On 1/11/15, Denis<[email protected]> wrote: >> >>> Sometimes it left unbalanced with new tserver hosts zero tablets or >> >>> much less that others. >> >>> So I had to restart master to initiate the balancing process. >> >>> Then balancing was performed slowly without putting thousands of >> >>> tablets offline. >> >>> >> >>> On 1/11/15, John Vines<[email protected]> wrote: >> >>>> I have a hunch that the 1.4 version being used possibly had one or >> more >> >>>> of >> >>>> the many bugs regarding balancing getting 'stuck', which was >> >>>> typically >> >>>> resolved via bouncing the master. Denis, in 1.4 when you brought you >> >>>> tserver back online, did you find that things were then balanced or >> did >> >>>> you >> >>>> just have a tserver up and things were left unbalanced? >> >>>> >> >>>> On Sun, Jan 11, 2015 at 11:30 AM, Denis<[email protected]> wrote: >> >>>> >> >>>>> yes, per server >> >>>>> >> >>>>> On 1/11/15, Sean Busbey<[email protected]> wrote: >> >>>>>> On Sat, Jan 10, 2015 at 3:42 PM, Denis<[email protected]> wrote: >> >>>>>> On 1/10/15, Christopher<[email protected]> wrote: >> >>>>>> >> >>>>>>> ... >> >>>>>>> 3) how many tablets do you have per server?.... >> >>>>>> 3. about 6000 >> >>>>>> >> >>>>>> Just to confirm, this is 6000 tablets per-server and not 6000 >> tablets >> >>>>>> per-table or overall, right? >> >>>>>> >> >>>>>> >> >>>>>> -- >> >>>>>> Sean >> >>>>>> >> > >> >
