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| -rw-r--r-- | system/zookeeper/README | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/system/zookeeper/README b/system/zookeeper/README index a752f3834e..ed9fb00d94 100644 --- a/system/zookeeper/README +++ b/system/zookeeper/README @@ -1,16 +1,19 @@ -ZooKeeper is a centralized service for maintaining configuration information, -naming, providing distributed synchronization, and providing group services. -All of these kinds of services are used in some form or another by distributed -applications. Each time they are implemented there is a lot of work that goes -into fixing the bugs and race conditions that are inevitable. Because of the -difficulty of implementing these kinds of services, applications initially -usually skimp on them ,which make them brittle in the presence of change and -difficult to manage. Even when done correctly, different implementations of -these services lead to management complexity when the applications are -deployed. +ZooKeeper is a centralized service for maintaining configuration +information, naming, providing distributed synchronization, and providing +group services. -This script requires a 'zookeeper' user/group to exist before running. +All of these kinds of services are used in some form or another by +distributed applications. Each time they are implemented there is a +lot of work that goes into fixing the bugs and race conditions that +are inevitable. Because of the difficulty of implementing these kinds +of services, applications initially usually skimp on them ,which make +them brittle in the presence of change and difficult to manage. Even +when done correctly, different implementations of these services lead +to management complexity when the applications are deployed. + +This script requires a 'zookeeper' user/group to exist before running. The recommended UID/GID is 322. You can create these like so: groupadd -g 322 zookeeper -useradd -u 322 -g 322 -c "Zookeeper user" -d /var/lib/zookeeper -s /bin/sh zookeeper +useradd -u 322 -g 322 -c "Zookeeper user" \ + -d /var/lib/zookeeper -s /bin/sh zookeeper |