2016-01-11 23:29 GMT+01:00 Adam Goryachev <mailingli...@websitemanagers.com.au>: > 1) Define and control your environment > * Define the specs of both your server and client (disks, ram, cpu, > network, raid level, lvm, filesystem, etc) > * Only add one server at a time, when it is working well, add a second, > eventually you will be comfortable with adding a batch of servers, but > start controlled
server: DELL PE2950 with 2GB ram and 1 quad-core CPU, 6 SATA disks in RAID-5 client: Xen DomU, 8GB RAM, SAS disks network: full gigabit (1 switch between server and client) iperf show nearly about 1gbit Initially I've added just 1 server: the biggest one, to test. After first successful backup (lasted 2 days) i've added a smaller server to check if a smaller server would be parsed quickly. With no apparent reason, BPC started a new backup for the firstly added server, as incremental. Then, first full and first incremental are suddenly disappeared and now another full is running. In the same time, the first full for the second server is still running. Actually I have: server1: type=backup, status = "copy #2 -> #1", count = 353170, start time = 1/11 22:42 server2: type=full, status = "backup full", count = 1224681, start time = 1/10 12:16 For server1 (Backup Summary table) #1, Type=full, Filled=no, Level=0, Start Date=1/10 19:23, Duration/mins=1372.2, Age/days=1.2, Server Backup Path=/var/backups/backuppc/pc/x/1 #2, Type=full, Filled=yes, Level=0, Start Date=1/10 19:23, Duration/mins=1372.2, Age/days=1.2, Server Backup Path=/var/backups/backuppc/pc/x/2 > 2) When you come across a problem, try to provide as much detailed > information as possible. This can include unmodified log files > (excluding passwords), or similar. Don't just provide a tiny snippet or > a summary, provide all the detail (eg, not just one or two lines with > the error message, but the 50 lines before and 50 lines after). I've never posted modified log. I've just removed the server names. > 3) Focus on one problem at a time > Often solving the first problem will also solve the other 5 unrelated > issues you thought you had. BackupPC is a complex system, and it can > take some time and effort to get it working smoothly. I have just 1 problem, the other are related to this one (i think) > 4) IMHO, get yourself a development/testing/spare server to > install/setup BackupPC. Leave your existing Bacula server in-place and > working (so that you have actual working backups) and take some time to > get BackupPC working. Bacula is stil running. Having a test environment is impossible at this time. > This might be true, but backuppc also needs to translate every log > message it sees from every tool. If it doesn't understand that a > specific message can be safely ignored, then it will treat it as an > error and mark the backup as failed. I don't think a reverse DNS lookup > would cause this message to be logged, at least not on the backuppc side > of things. Where did you collect this log from? How many times is the > error logged? What else does that log include or say? Posted log was from client, not from BPC. It was the rsync log. > 1) Disk (not raw throughput, but random I/O). Use iostat while a backup > is running to see what is happening. Ok. i'll try tomorrow > 2) RAM (a lot of ram can be used as a disk cache, not enough ram will > massively increase your disk I/O even without swapping) I would like to add ram, but backup are still running. I would like to see if these running process would terminate in the near future before rebooting. > 3) CPU (for compression, if it is enabled, and also rsync does lots of > calculations/etc) Compression level 3 (the same used in Bacula) > 4) Bandwidth full gigabit, tested many times. > 5) Latency (both disk and network) network latency is good. Disk latency I've never checked. > PS, can you explain the reason you are looking to move away from Bacula? > What issue is it that you are trying to solve? Too complicated. Many times it hangs with no apparent reason then it start again after a couple of days. really, is a mess of software. I hate it. ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
