MongoDB operations

Install

emisar pack install validates the pack and verifies its content hash before copying it into /etc/emisar/packs. The --hash below pins the install to the exact bytes on this page — a tampered copy is rejected. After install, reload the runner; it re-reads the catalog and advertises every action.

content hash: sha256:35cc074fef55878a847a32b74eabb96b0acfb76df7e8be6dea60f2a83e91d24b

sudo emisar pack install mongodb \
  --hash sha256:35cc074fef55878a847a32b74eabb96b0acfb76df7e8be6dea60f2a83e91d24b \
  --dest /etc/emisar/packs

# Reload so the runner re-reads the catalog:
sudo systemctl reload emisar

• mongo.balancer_status exec low

  sh.getBalancerState()

• mongo.build_info exec low

  buildInfo

• mongo.collection_list exec low

  db.getCollectionNames()

• mongo.collection_stats exec low

  db.<coll>.stats()

• mongo.compact_collection exec high

  db.runCommand({compact:"<coll>"})

• mongo.concurrent_transactions exec low

  Read/write tickets (concurrency saturation)

• mongo.connection_stats exec low

  Incoming connection saturation (serverStatus.connections)

• mongo.connections exec low

  connPoolStats

• mongo.current_op exec low

  db.currentOp()

• mongo.cursor_stats exec low

  Cursor saturation / timed-out cursors (metrics.cursor)

• mongo.db_list exec low

  listDatabases

• mongo.db_stats exec low

  db.stats()

• mongo.default_rw_concern exec low

  Default read/write concern (getDefaultRWConcern)

• mongo.drop_index exec high

  db.<coll>.dropIndex("<name>")

• mongo.election_metrics exec low

  Election / stepdown history (electionMetrics)

• mongo.explain_query exec low

  explain a find()

• mongo.get_parameter exec low

  getParameter '*'

• mongo.global_lock exec low

  Global lock queue / active clients (globalLock)

• mongo.host_info exec low

  hostInfo

• mongo.index_builds exec low

  In-progress index builds (with progress)

• mongo.index_stats exec low

  $indexStats aggregation

• mongo.kill_op exec high

  db.killOp(opid)

• mongo.long_running_ops exec low

  Long-running active ops (currentOp, secs_running >= N)

• mongo.oplog_size exec low

  Oplog size + window

• mongo.profile_slow_queries exec low

  Read slow ops from the profiler (system.profile)

• mongo.profiler_status exec low

  db.getProfilingStatus()

• mongo.replication_info exec low

  Oplog time window (db.getReplicationInfo)

• mongo.replset_config exec low

  rs.conf()

• mongo.replset_lag exec low

  Replication lag (secs behind primary)

• mongo.replset_status exec low

  rs.status()

• mongo.replset_stepdown exec critical

  rs.stepDown(<seconds>)

• mongo.server_status exec low

  db.serverStatus()

• mongo.shard_status exec low

  sh.status()

• mongo.top exec low

  db.adminCommand({top:1})

• mongo.wiredtiger_cache exec low

  WiredTiger cache pressure (serverStatus.wiredTiger.cache)