tail repair issue (1.4.20)

2014-07-01 Thread Denis Samoylov
Hi, We had sporadic memory corruption due tail repair in pre .20 version. So we updated some our servers to .20. This Monday we observed several crushes in .15 version and tons of "allocation failure" in .20 version. This is expected as .20 just disables "tail repair" but it seems the problem i

Re: tail repair issue (1.4.20)

2014-07-01 Thread dormando
Hey, Can you presize the hash table? (-o hashpower=nn) to be large enough on those servers such that hash expansion won't happen at runtime? You can see what hashpower is on a long running server via stats to know what to set the value to. If that helps, we might still have a bug in hash expansio

Re: tail repair issue (1.4.20)

2014-07-01 Thread Zhiwei Chan
hi, i think it the same bug with issue#370, and i have found the reproduce way and pull a fix patch to github. 在 2014年7月2日星期三UTC+8上午5时43分49秒,Dormando写道: > > Hey, > > Can you presize the hash table? (-o hashpower=nn) to be large enough on > those servers such that hash expansion won't happ