Avamar：MCS 刷新失败，并显示 avtar 错误 <16507>：路径“var/mc/server_data/prefs/sessionticket.srl”

当执行 MCS 数据库的备份时，可能会出现以下错误：

avtar Error <16507>：路径“var/mc/server_data/prefs/sessionticket.srl”：已处理字节 <总数 #> 与原始数据大小 <不一致 #>

后续备份将完成，而不会出现问题。

cd /usr/local/avamar/var/mc/server_data/prefs/
cp -p mcserver.xml x-mcserver.xml.old.'date -I'

Edit /usr/local/avamar/var/mc/server_data/prefs/mcserver.xml and add the following information to the flush_exclude_subdirs line:

,prefs/sessionticket.srl

So the flush_exclude_subdirs line should appear as follows:
value="mcs_data_dump.sql.restore,postgres/data/base,postgres/data/global,postgres/data/pg_clog,postgres/data/pg_xlog,postgres/data/postmaster.pid,flush,postgres/data/pg_log,postgres/data/pg_tblspc,postgres/data/pg_twophase,postgres/data/pg_multixact,postgres/data/pg_subtrans,postgres/data/pg_stat_tmp,prefs/sessionticket.srl" />

Note that the MCS will need to be restarted for these changes to take affect:
 

dpnctl stop mcs
dpnctl start mcs

Once the next backup of the MCS has been completed you can confirm the sessionticket.srl was not backed up by grepping through the flush.log to confirm;

grep sessionticket.srl /usr/local/avamar/var/mc/server_log/flush.log
 

2016-10-26 05：50：10 avtar Info <7838>：- 添加了用户排除“var/mc/server_data/prefs/sessionticket.srl”
2016-10-26 05：52：38 avtar Info <5375>：   排除模式“var/mc/server_data/prefs/sessionticket.srl”匹配 1 个。
2016-10-26 06：50：01 avtar Info <5551>：命令行：/usr/local/avamar/bin/avtar.bin --flagfile=/usr/local/avamar/etc/usersettings.cfg --password=**************** --vardir=/usr/local/avamar/var --server=server-internal --id=root --bindir=/usr/local/avamar/bin --vardir=/usr/local/avamar/var --bindir=/usr/local/avamar/bin --sysdir=/usr/local/avamar/etc -c -v --account=/MC_BACKUPS --nocache --senddata --logfile=var/mc/server_log/flush.log --id=root --password=**************** --retention-type=daily，每周，每月，每年 var/mc/server_data/ --exclude=var/mc/server_data/mcs_data_dump.sql.restore --exclude=var/mc/server_data/postgres/data/base --exclude=var/mc/server_data/postgres/data/global --exclude=var/mc/server_data/postgres/data/pg_clog --exclude=var/mc/server_data/postgres/data/pg_xlog --exclude=var/mc/server_data/postgres/data/postmaster.pid --exclude=var/mc/server_data/flush --exclude=var/mc/server_data/postgres/data/pg_log --exclude=var/mc/server_data/postgres/data/pg_tblspc --exclude=var/mc/server_data/postgres/data/pg_twophase --exclude=var/mc/server_data/postgres/data/pg_multixact --exclude=var/mc/server_data/postgres/data/pg_subtrans --exclude=var/mc/server_data/postgres/data/pg_stat_tmp --exclude=var/mc/server_data/prefs/sessionticket.srl --server=server-internal --hfsport=27000 --conntimeout=120 --vardir=/usr/local/avamar/var